Vesc mosfet. Các mạch này bao gồm: 1.

Vesc mosfet The design uses the DRV8302 chip so I increased the hardware deadtime to the maximum 500ns with a 150kOhm resistor. MK 8 is a VESC capable of handling up to 150VDC, succeeding previous Mk5, Mk6 & Mk7. 2uF @ 18S, 6uF @ 16S per phase) 6x 470uF 80V 16x30mm KZN United Chemi-Con Dead Time Compensation implementation in MB9Bxxxx/MB9Axxxx Series www. Hello, For the past couple months I have been developing high voltage (200V components - up to 40s) vesc that is primarily focused on electric unicycles. It was early alpha stage but it works :). But the other two temperature probes don't register anything. All other Future Motion components will be re-used, including the stock BMS, battery, and wiring harness. And I can connect to the board from the VESC tool. 7uF 100V 1210 Ceramic capacitors (5. (Calculated by FOC) The higher my ERPM (= RPM * poles) the higher the switching frequency of the FET/IGBT to generate the needed sine-wave signals. This would utilize 3 shunts on all phases but they would be from the low-side FET to ground instead of high-side FET to the phase of the motor like how the VESC 6 has it. They are very expensive and STM32 can't run them so fast that they can. From my experience the 270A continuous phase current are hard to Hello guys During Corona quarantine I designed this custom PCB. I think this should by fixable by software. xlsx. Watch out for crosstalk from phases and mosfet gate traces. 1: Do I need a Mosfet-zener type voltage limiter at the VESC output, or is there a way in software to limit output to 50. Will this circuit somehow fry my VESC? If the VESC max regen current is set to 100 amps, and the MOSFET limits the voltage to 48 volts, will the VESC keep trying Efficiency, power quality, and reliability of SiC MOSFET-based voltage-source converters are significantly affected by the dead-time settings. 5mm washers will stop the MOSFETs from fully touching the metal surface. The second VESC controller capable of hibernating, your board can conserve power while not in use - reducing power On my dual vesc based dyno, i'm getting this data when changing switching frequency. Questions: Q1: Are these phase and current filters beneficial enough to have them? Q2: How to use USB without Plenty of people use different MOSFET drivers and MOSFETs in their custom VESC-based ESCs. The simulation was to give an idea The Vesc will produce a sinewave for my motor. However, when I look at the datasheet, it has the I have a 75V 300A Original VESC, recently I have tested it with a 5kW motor to its peak current of 100A at 48V for about 2 hours, where I noticed there is a instant rise in temperature of the mosfets and they stayed between 85C to 92C even with proper heat sink and a fan for cooling. VESC stands for Vedder Electronic Speed Controller and is an open-source ESC (Electric Speed Controller) that is used to control a multitude of devices like Over tempertaure (MOSFET and motor) Why should you choose VESC? The advantage of the VESC is the configurability that allows it to be programmed for your specific application. Gate resistor and surrounding components are supposed to match closely with the mosfet. It seems that sofar, comparing different brands/packages to the "Official" Infinion This is the best tutorial I have seen so far. What I think happens is that when the mosfet starts to conduct, the drain node is yanked from "V+" to GND so quickly that capacitive coupling between that node get mosfets temperature . Savings on the MCU costs are usually eclipsed by the effort taken to port the very specific STM32F405 code to the new MCU. In this situation the part is called an STM. That would take the controller to next level with (maybe) just a redesign of the Mosfet mounting. 14000 ERPM / 15 pole pairs = 933. They don't have a tendency to blow up unless you drive them wrongly or try and source too much current. For my case, it's not a MOSFET related issue. 18x 75v Direct FETs IRF7759L2TRPBF 1. Note: This guide shows the desktop VESC Tool 6. They ride up to 35 mph, with furious acceleration, two 3 kW motors air-cooled, no problems. Trong bài viết hôm nay, Tự Động Hóa PLCTECH sẽ giới thiệu và phân tích 5 mạch điều khiển tốc độ động cơ một chiều (DC) phổ biến. There are not 2 MOSFETs in parallel for each phase. 03 19 p0. It is designed to take maximum input voltage of 150V (30S lithium capable) and peak 200A phase/battery current. Supply bypass capacitors (up to 60V): slower MOSFET switching rise/fall times; The VESC firmware is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. 05 25 p0. With suitable capacitors and mosfets it is possible to turn this board into higher voltage / lower current controller up to 150V input voltage. Packed with a variety of amazing new features, this VESC motor controller is certainly worthy of its pimpin’ gold logo, pushing up to 160A burst reliably towards your motor + allowing spikes Parasitic capacitance in the MOSFET between drain and source plus external parasitic capacitances mean that when the MOSFET turns on, it is trying to short out these previously charged parasitics and hence, there is always an impulse of current into the MOSFETs drain. Up to 1 5 0V tolerant ~ 3 0S capable (3 2S with limited regen. TheFallen. Flux is essential. Regards. Btw most of the times damage was the same as But as you can see, this VESC Flipsky 75100 mosfets temperature went from 34 to 62 ºC in just 16 seconds!! I would say this controller is good only up to 60A phase current, otherwise will quick heat up: Attachments. 849 KB · Views: 312 Help me buying tools for my development for Bafang motors - my paypal: casainho [@) gmail It's not uncommon for the MOSFETs to get over 65°C in the summer, p28a specs say maximum 60°C. 27_xl1 2 gnd 20 p0. Sat, 2020-11-28 10:27. Charging this layer with a small voltage controls the flow of current. VESC Compatibility:The Ubox controller is designed to be compatible with VESC official 100V/250A firmware, offering versatile control options. So is the total dead-time equivalent to the sum of those 3 parts, and how long (in nS) is the lenght of a cycle The DRV8302 uses automatic hand shaking when the high side or low side MOSFET is switching to prevent current shoot-through. There are some very tiny caps or resistors right beside the driver gates, it will be a challenge to replace them without disturbing things. 1683677128270. I grabbed a VESC 6 schematic from a thread somewhere and tried routing the power portion of it with TO220 FETs with the power rail layout I drew above and I think if you did end up using it or something similar you would easily be able to fit a 12 FET design into a 6 FET size aluminium extrusion box (125x35), even with the extra sensing Link to VESC: https://flipsky I am also wondering if mosfet clamp capacitors aren't enough for such high currents. In theory with 100khz switching speed or so you could probably eliminate the need for electrolytic caps The VESC design calls for a 33 or 39k resistor to ground for that situation. Definition at line 510 of file vesc. MOSFET Temperatur Cuttoff End 100. 2) in pairs. By The aim of this guide is to convert a Onewheel+ XR to use an open-sourced VESC based controller mounted in a 3D printed controller box. 3 Dead-time in TPS512X5 2. Total voltage de-rated to 140v as a safety margin. 5 Mạch Điều Khiển Tốc Độ Motor DC. Returns float* temperature of the tree mosfets . 28V swing in few hundred nanoseconds will couple to anything in close proximity. This is what is shown in VESC tool, my understanding is that since the current shunts are measuring the current it has to be passing through the motor. There always needs to be a safety margin for reliable use, so heavy de-rating applies. +5V to brake light positive, brake light negative to FET Using a load resistor like this, the minimum regen current will always be I regen = (U EMF - 2*V f)/R L where V f is the forward voltage of the MOSFET diodes, no matter what you do, since the VESC has no way to turn off the body diodes of the MOSFETs. 23 7 p0. 4 My measurements were all done in cool status (~40C Mosfet) ps: note that I use comma for decimal instead of a point. This test says that you can drive a motor with ODrive continuously at 40A with using only the heatsink, and 75-90A when using fans. But if I flash the VESC with the my custom FW configuring the conf_general. controlling the VESC through a different input or controller) We are happy to help you with these or other problems around the VESC. More smaller I'm using a cheap Chinese controller that says it's 2,000 w and it is an 18 mosfet The battery I'm using is a lithium ion and it's 16 amp hour and rated for 100 amp I know that that controller is a complete POS. So putting in 30 kHz is actually 15 kHz switching of the mosfets. VESC is probably a good controller type; it's very tunable to various systems. cpp. I use a flux pen. I made some time a go fully isolated VESC hardware. Offline . Though I really don't need even half of the power) At what are the caps and MOSFET rated? Top. If you are interested please write an Email or What is the reasoning behind the Switching Frequency in the VESC? I notice that what you get (and therefore also hear) is actually half of the setting you put in. Jobe_devian. , DCDC converter rated 155VDC, bulk capacitors rated 160VDC, MOSFETs are the limiting factor). 6mOhm per phase) 18x 4. It even has a lower gate charge but at the same time the turn on delay is 25ns Whats your take on these. Log in or register to post comments; Mon, 2020-12-07 10:33 #3. I am using two separate Spinted VESC Ubox Controllers in aluminum, 85V 250A based on VESC, with a 72V nominal battery and a discharge rate of 450A, and two 6000W motors. MOSFET Temperatur Cutoff Start 85. 25 18 p0. The current in this area is shown as 𝐼 = 𝑆⁄𝑅 𝑆( ). The PCB inside the VESC says V1. The specs are great, but in reality, the MOSFETs overheat because there is no The VESC 75/300 is now available for purchase. Would this impact function if I were to use the same firmware as the VESC 6 or would there be some necessary changes? ), and am able to load firmware and connect using VESC Tool. 6 mΩ. Soldering is obviously not on I am designing it as a 60v 25a max controller. On the input side, make sure there is I've been toying with the Idea of designing my own VESC power stage, and I've been looking at the different Mosfets people use for them. New features, setting it aprt from the previous MKV edition are: Second UART port, increased current Start your placement with power stage. We are proud to announce a new product that will suite the power junkies very well. I intend to test the design rather thoroughly after I get a version assembled. As shown in (1) to (5) of Figure 1, SOA can be classified into the following five areas. A Unit being a lot more affordable while still giving access to all the 1. And considering that you need 6 or more MOSFETs, any savings you make by choosing different MOSFETs quickly gets multiplied. I suspect that changing mosfet for beefier ones requires a taking good care of specs. 6x Mosfets per phase - FDBL86361_F085; 1x Gate driver per phase - UCC27211DDAR; 18x 4u7 ceramic caps on other side of board from fets (Can increase to 10u if needed) 2x 1000uF electrolytic I would need around 300 to 400 amps peak and figured a margin would be good. When updating the VESC 6 to the latest MarkVI standard, we managed to get 12 Fets into the same for factor and increase the peak power handling quite a bit. Code to support full-featured Ninebot Max G2 operation using a VESC-based controller and an Arduino Nano ESP32 - TriWrite/VESC-Ninebot-Max-G2 The 3. FLIR_20220714_045835_234 Have a look at VESC_COMMUNICATION. VESC Hardware by Benjamin Vedder is licensed under a Creative Commons Attribution-ShareAlike 4. The VESC Onewheel XR or as it should be described VESC XR is an XR where the stock controller from Future Motion has been changed to a VESC controller (VEDDER. xml by adding extra variables like this: Around line 500: <l_temp_fet_low> The MOSFET under consideration- Mosfet under consideration Let me explain my understanding - My desired/required Vds - 5V. There is a major issue im facing right now, which i couldn't figure it out by myself, my hardware design has two boards, - The Driver unit board has the mosfet, shunt, temp sensor and the signal connector that reaches the second board (Control Unit). 8 VESC just blew up :(Setup: 10s battery; FOC mode; Maytech 6374 90KV motor; ABI encoder (CUI AMT103-V) It was in speed control mode at 0 RPM with no load during the incident. Last seen: 10 months 1 week ago . Help your project succeed through the power of collaboration and the The firmware in this repository is compatible with the ODrive v3. and we need a high voltage high amp vesc 🙂 looking forward following your project. - Easy to service and extract unhealthy cells. 2 mOhm mosfets. 1). The cause could be a voltage or current spike MOSFET DirectFET AUIRF7749L2TR NTMFS4935NT1G VESC is a representative open-source motor controller and its characteristics are summarized and compared with those of ODrive in Table 1. JOIN THE DIY CLUB. Sơ đồ mạch điều khiển tốc độ động Would you be willing to run a few heat tests so we can see how well our models work? I have a normal VESC 100/250 and could use that as the benchmark to your upgraded heatsink. Make a new HW version define: Changing the beta factor in the HW define solves the issue for individuals. Regenerative braking. In BLDC Tool or VESC Tool, you can find dead-time compensation, preset to 0. This might sound crazy but is this the PS: sometimes, i cannot even connect my VESC to the computer (the high temperature MOSFETS seem to prevent the connection?) Top Log in or register to post comments Code to support full-featured Ninebot Max G2 operation using a VESC-based controller and an Arduino Nano ESP32 - VESC-Ninebot-Max-G2/VESC Arduino ESP32. I compared the temperatures when the VESC was inside my bike bag (so no airflow at all) and with the VESC + heatsink was hanging out of the bag. 01 21 p0. I've got an oscilloscope. dev Motor Wizard Guide: Step by Step, Troubleshooting etc. 6 mOhms with a very fast rise/fall time. my mosfet setup gate charge is 2x168 uC, and IGBT is 800 uC. I couldn't find on the files which compose the VESC Firmware, the lines responsible for the regenerative braking. both use 4A sink and source drivers. I was running the test on my eBike with a MXUS 3000 v3 motor and 10000mAh Multistar 11s battery. 3333 rotational RPM. Generated on Thu Nov 14 2019 10:42:25 for Arduino_VESC_Library by Platform: VESC Max Voltage: 32S (150V MOS with 150V DC-DC) Min Voltage: 40V Continuous Current: 300A with efficient liquid cooling Burst Current (10s): Up to 500A (MOSFET dependent) Absolute Max Current: 550A Hardware Designing with power MOSFETs How to avoid common issues and failure modes Author: Peter B. FallmanTech > Onewheel need to change the stock controller box to allow the fit of the Little Foccer inside and at the same time enable the MOSFETs to be cooled. I wanted to use 10uF ones but they are still not available in 1210. *B 2 Disadvantages During the dead-time compensation function, a modification on the sinusoidal-modulation pattern needs to be made The main thing I did was add 6x 4. But when I reach a specific load/speed the motors are making weird noises and stop accelerate. Optimization of PCB layout and process. Now i works on free time (not too much free time ;/ ) on VESC-Brain. GaN FETs will be a great feature addition, i think the limitation comes with the continuous current capacity (not sure but is my analysis). mosfet setup have one 5 ohm resistor for 2 gates, IGBT is slow on 5Ohm, than i tried 0,1 and 2 ohms. ) is currently being actively maintained and VESC with STM32F405 pill VESC with GD32F303CG pill (Netzpfuscher mod, note CG) EBICS with F103 Bluepill (Stancecoke) (54. 8mOhm (0. Yes, as the title indicates, I am testing the new VESC motherboard, and the test has been basically completed. It uses 6x IPT007N06N mosfets. I am waiting for three shunts design I would like to make my own MOSFET driver, as it is pretty hard to find specifically what I am looking I am making my own. 7uF ceramics right on top of the fets, basically the same as the vesc 6. They all read Temperature MOSFET and Temperature MOSFET 1 and respond appropriately to heating of the thermistor. Hey everyone, in doing my research in considering converting my XR that's currently having the battery, controller and BMS diagnosed as to why it cut out on me at 83% battery life and not turning on again I made a list of resources on where to purchase the parts needed for an XR VESC conversion. It should work if there are no other problems. Skip to content. This chip is the most vulnerable component of VESC, accounting for 80% of the VESC failure rate. (which are needed to generate the rotary field) Introducing the amazing VESC® 6 MKVI HP (Higher Power) Speed Controller, the sixth major product update of the world famous VESC 6 motor controller with some extra punch on the top end. - The VESC throws an Under voltage Fault at around 5 volts when motor detection fails. IRFS7530 MOEFETs (other FETs in the same package also fit). This application assumes you have enabled status messages 1-5, please update your CAN-settings in VESC appropriate to have full support of all features. Neither the lines of code responsible for the MOSFET Switching. VESC Bible. Permalink. 06 26 p0. Packed with a variety of amazing new features, this VESC motor controller is certainly worthy of its pimpin’ gold logo. The VESC Change the VESC-tool configurable temperature range to an extreme like 200C. Another I've been working on my high voltage VESC design for the last three years and I am pretty close to a full scale production. It happened during a long (10 minute) regen when the as5047 encoder became disconnected (unplugged) whilst we were commanding a brake current of 10A, I don't know if the encoder disconnection was the cause or just a coincidence as I only noticed after the fire had For anyone wondering: the original VESC suffers from some fairly serious problems, most of them packaging-related. 5C. I need to look at the code and try some different motors. Running 100v rated mosfets and caps at 100v, for example, will most definitely destroy them very quickly. 3”. Low side shunt current sensor. x (NRND) and is no longer under active development. cypress. h file with the following settings, I lose this temperatures and I only have access to the TEMP_Filtered. There’s no way to stop heat from being created. 00 23 dcc 24 p0. To stream live data 2*VESC Sensor Wires; 1*Micro USB 1*Manual Function Details: DRV8302 MOSFET driver / buck converter / current shunt amplifier. Even though my design uses a FET driver that should always be driving the gate, I have kept that resistor. If the VESC turns on the MOSFETs to allow regen current to flow to the pack then there is MOSFET heating from that current flow. Another step I take in this project (and in others that are mosfet_n gnd 1 j2 mount 1 j1 mount 1 j3 mount vcc d5 d_schottky r53 2k2 gnd 1 dec2 10 p0. The DRV8323RS have 3 amplifier for low side shunt resistor and all is same in power stage. In order to do this, it switches the Mosfets / IGBTs on and off at the calculated times. Software Platform: VESC Max Voltage: 24S (120V MOS with 150V DC-DC) Min Voltage: 40V Continuous Current: 400A with efficient liquid cooling Burst Current (10s): Up to 700A (MOSFET dependent) Max Set Point: 750A Absolute Max Current: 850A Current Measurement Capability: 1000A Hardware Overcurrent Detection: Not availabl Super powerful Wireless NRF52840 chips are fitted as standard, (The NRF Chip insied your VESC can be boosted or re-positioned to a stonger signal point by using a Externally Mounted ARIAL style or PCB Style Antenna) mounted NRF antennawhilst hibernation (power switch without Mosfets), roll to start, auto power off, self balance IMU, built in ****Introducing the amazing VESC® 6 MKVI Speed Controller, the sixth major product update of the world famous VESC 6 motor controller. Software Installation and Configuration Tutorial. Start VESC Tool®, connect to your BESC and click “Realtime data” from the menu on the left. Method: Vesc-tool shows motor runs at 14000 ERPM max with battery at 41. In near ideal conditions a 5mOhm Both VESC and ODrive use a TI gate driver from the same series, but the DRV8305 is unique in that it is compatible with 3 current shunts instead of 2. Does the phase shunt means resistor wired to motor wire and middle tap of high side MOSFET and low side MOSFET? 6. Which basically means it has built in IMU and can handle stock The structure of the VESC PCB can be broadly divided into six parts: MOSFET, gate driver, microprocessor, shunt resistor and current sensing circuit, CAN transceiver, and highcapacity capacitor. I named this motherboard It was designed to fill the gap between regular VESC 6 and monster VESC 75/300. VESC battery packs are the latest in innovative battery technology. 7. References getRealtimeValuesSelective(), and VescUtility::utility_get_float16(). VESC Hardware by Benjamin Vedder is licensed under a Creative Commons Attribution Here is a plot showing the Mosfet-temperature behaviour at 270A phase current for a VESC 75/300 with an aluminium liquid cooling block with good thermal coupling. But I can't see at the moment why it shouldn't be possible to increase the current above this The VESC Environment is so much more than just a technical solution - its a rapid growing community of enthusiasts and experts, spread around the entire globe. When TRAMPA got involved in university projects, supporting students in all kinds of fields, it became very clear that students need a different version of the popular VESC 6. 6V. So this means that the newly compiled VESC executable with hwconf for FOC_KING is running and no detected hardware errors so far. Now, 80% of that is 48V. It controls external power stage (MOSFET + drivers + voltage/current sensing). After you disassemble your XR, open the battery box and follow a CBXR install video to disconnect the BMS, then plug the battery directly into the stock harness (if you just leave the battery box as is, the VESC won’t turn on). Firmware for the new generation of ODrives (ODrive Pro, S1, Micro, etc. 3mOHM (source: Spintend support Have changed MOSFET drivers to UCC21520A as you suggested for better propagation delay and as they have shutdown pin have too added overvoltage protection with really fast response time - 80ns (driver delay 30ns + comparator delay 50ns). . Same general location as the original VESC 6, just above the PCB, not inline. 19 11 gnd 12 out_ant 13 out_mod 14 gnd 15 swdio 16 swdclk 17 p0. 6 = 22. Maybe I can mod the code to be more accurate for the PI controller gain calcs. I changed the mosfet driver from DRV8301 to FD6288Q, INA from AD8418 to The Flipsky 75100 (Vesc Clone) uses 6* MDP10N027 MosFETs and it is rated to 20S and 100A, so maybe a very good choice if available. Or just use the same rating as your FETs. My hardware is base on VESC_6_mk5. 66mOhm resistance compared to IRF7749 1. 0, but the app version is similar. Is this way of defining it a standard in the space the VESC operates in? \$\begingroup\$ I can't figure out how to test the output of this VESC without actually running it. You have to solder the traces stronger too! 2. Anything other than 20khz is distinctly and repeatably lower efficiency than 20khz. And in our experience the Mosfets don't brake down at rated voltage. Log in or register to post comments . I don't know why I wrote that, it's wrong for your situation. If I limit the max amps in the VESC seems like I am defeating the purpose of the generator providing most of the power since that is outputting 100 amps vs battery max charge You could easily replace the fets with GaN fets, though I don't think the STM32F405 PWM can really exploit their switching speeds. 3. The conventional fixed dead-time setting can induce large output voltage loss and additional energy loss due to the output capacitance of the SiC MOSFETs and the SiC Schottky barrier diodes or the freewheeling of the diodes, which I've looked several times at HW4. The Vds of the said MOSFET is 60V. The ODrive uses the MOSFET NTMFS4935NT1G (since v3. The stars of my driver are the NSS40300 (PNP) and the NSS40301 (NPN). They were also used in VESC designs in the past, for example “Zesc v7h” or “a200s V1. So far, I've tested with some moderate loads to compare the low amp and high amp VESC measurements with those made with an external calibrated shunt and it seems there is some non-linearity but it's not bad. I suspect this is current shoot-through from high to low side of the FETs. With the default FW I have all that MOSFET temperatures, MOS1, MOS2, MOS3 and TEMP_Filtered. The VESC uses 1. It really is as easy as it looks when done right. It is safe to use VESC6 in FOC mode Current-Sensing Low-Side MOSFET Driver << BACK Features: •11V to 50V operation •175ns rise/fall time driving 2000pF •TTL compatible input with internal pull – - down resistor •Overcurrent limit •Fault output indication •Gate to source protection •Compatible with current sensing – - MOSFETs I wanted to improve the cooling on the 120 amp mosfets on my motor controller, but I realized thermal paste wouldn't be good since shorting the drains of each mosfet would become a problem. Probably a damaged power stage, shorted Mosfets or damaged gate drivers. Once when replacement of faulty or poor soldered DRV8302 MOSFET drivers MOSFET replacement manifacturing of cable harnesses implementation of VESC software enhancements (e. 3333 / 41. The IRF200P222 is a 200V and 182A max Mosfet with 6. No, I don't know the exact location. i already started to design my own VESC with your BESC as an reference and inspiration. this may be a good place to ask: If I send a CAN command via the UART (usb) will the vesc pass that on to the canbus? The large capacitors will be going in those through holes below the fets. Whilst the temperature read by the VESC is still wrong, we are now able to implement the safety current throttling feature. The Mosfet temp is done that way, 10K and 2. Also pay attention to driver - mosfet gate loop and keep it as short as possible to prevent ringing Hey I missed this at the time but that looks very risky IMO! The original design is already quite questionable because it uses the legs of the mosfets as mechanical support; the mosfets are bolted to the heatsink but the The mosfet driver I have in mind is the DRV8353. but I still doubt whether I should build a motor controller myself or buy one. Sorry for the lame question, but I am a software developer, and have only a limited understanding of analog circuits. i want to run the motors on 100 We had a catastrophic failure today on a VESC 75/300 based unit (3rd party not Trampa). Motor Tutorials. 17 8 gnd 9 u13 nrf51822-ty_eysgjnzwy gnd When I used UCC27211 (propagation delay ~18ns) everything worked smoothly, despite UCC27211 upper MOSFET driving circuit for some reason liked to burn from time to time So after reading TI forums and seeing that a lot of people have trouble with them I've started to use IRS2186 which has propagation delay of 170ns. This allows for better sensing. 1. VESC will draw down current for protection when its temp trigger 75°C. Use via shielding for signals if necessary. Benjamin is very happy with the final tests and we can so no reason to hold it back any further. 1 Dead-time in EC Table (1) DRVH is the high side FET drive signal (2) DRVL is the low side FET drive signal Table 1. It is the High Power edition of the famous VESC6 design. Adaptive PWM frequency to get as good ADC measurements as possible. 12 Power MOSFETs NTMFS5C628NL is specially processed on heat dissipation and over-current to achieve continuous 60A output and more stable performance. 3V PWM signal controlled by the lispBM script is used to bias a 2N7000 N-channel MOSFET that feeds the 5V current through the LED module. I can’t tell exactly which model it is from the video, but the 100v Infineon version of that is only 2. This one is rated up to 60V and there are three main aspects I looked at: Both VESC and ODrive use a TI gate driver from the same series, but the DRV8305 is unique in that it is compatible with 3 current shunts instead of 2. Green About this document Scope and purpose In common with all power semiconductor devices, power MOSFETs have their own technical strengths, weaknesses and subtleties, which need to be properly understood if the designer is to avoid reliability issues. So, for the source code of vesc tool, I modified parameters_mcconf. But they can cope with such beating astonishingly well. 2, HW: 75_300. Look at the origin of VESC developement, skateboards. In near ideal conditions a 5mOhm TO-247 can sustain 100A DC at 25C ambient with forced air cooling for 3mins with a The SOA of ROHM Super Junction MOSFET (SJMOS) "R6024KNX" is shown in Figure 1. Supposing, I selected a MOSFET with Vds of 5, then after the 80% rule application the value is 4. 0 International License. simulate this circuit – Schematic created using CircuitLab. 1 and VESC Tool says Fw: 5. com Document No. Next, there are the MOSFETs and the It also has an improved thermal path on the MOSFETs as I've been able to eliminate the insulator directly underneath the MOSFETs. Tabs of mosfets next to each other may touch. DRV8302 MOSFET driver / buck converter / current shunt amplifier. it does two adc readings per pwm cycle. 24 150v rated mosfets in TO-Leadless package. In this post, I will only share my process of designing the motherboard, without attaching other links (after the company sells the motherboard, he will provide the schematic diagram Or the PCB files may be released). Mon, 2021-03-22 14:23 #1. 04 27 gnd 28 p0. 08µS. Those mosfets were designed to be used in forklifts, electric steering and another high current, low voltage automotive applications, similar to esk8. This guide also inclu pev. . If the battery voltage is above 60V you have to do a trace cut to the first step down and supply it with a voltage below 60V. I am following the official vesc 6 schematics from the vesc website exactly minus the switching regulators and some fets. Top side of the controller I want to control aux to switch on and off depending on mosfet temperature and I want to change the temperature settings directly on vesc tool. It uses VESC logic and isolated gate drivers from TI combined with high performance MOSFETs. 12 and HW6. When the motor turns faster than the battery allows, the six mosfets will coincide with six diodes in a three fase bridge rectifier and start charging the battery. By the way, with 4 mosfets in each group, you would need to be extra careful with load sharing. We tested some of those Fets way above voltage rating and they didn't blow up, but still performed well! Not healthy for the Fets over time. I'm trying to improve my understanding of how to command the VESC to Switch the MOSFETS at will. Packed with a variety of amazing new features, this VESC motor controller is certainly worthy of it’s pimpin’ gold logo. The PCB adopts a gold-thickening process with a 6-layer PCB layout design. 6V max) battery voltage, 80V or more is recommended. With stock settings (85C), the VESC firmware starts reducing current at 77. I don't know if the gates are bad, someone told me if a mosfet blew, the gates are probably bad also. Last seen: 2 weeks Both FETs are off during the Dead-time, inductor current will be conducted by body diode of LS FET to keep the current continuously. So, this one is apt. g. I've been working on high power VESC fork for the last couple of months. on 0 Ohm rise time If the MOSFET fails, the current of a shunt will be very large, but the program will not return an error, Therefore, I modified the program so that when the Slow ABS Current Limit is False, the overcurrent protection is directly based on the value sampled on the shunt, and when the Slow ABS Current Limit is True, it is based on the original The VESC 6 has been used for some eFoil builds already but our customers demanded more peak power to get the board out of the water quicker. Ubox V2 75V 100A x2 dual motor controller I have developed vesc 6 derivative using the DRV8323RS chipset. The gate of a MOSFET can be very delicate, for example, a suitably high voltage applied between the gate and source (Vgs) will break down the MOSFET Plus 2R2 on each parallel mosfet for decoupling. There's one high-side switch, and one low-side switch for each phase winding. Which basically means it has built in IMU and can handle stock EUC batteries. 1mOhm (datasheet parameters at 10V gate drive) Used mosfets are so powerful that at 50A continous board should be able to run without any heatsink at all. DC motors are also supported. Lead-free solder is no good. The MOSFET temperature limit start was set to 80°C and the end to 100°C. Problem is that when start it calibrates current without AMC1301 powered and then it reports invalid currents. I have tried version 6. They have 0. ubox single 100V 100A - MDT10N023RH - 100/300A - Rds 2. 1 post / 0 new . Color: Type A. 6V, at 5A average Spintend 85V 150A Single Ubox Motor Controller Based on VESC with 100V MOSFET BMI 160 Module for Electric Scooter Ebike Onewheel. Sensored or sensorless operation. But can be used with ebikes, e motorcycles, onewheels etc MK8-PRO is a VESC capable of handling up to 150VDC with twice the current output of the actual MK8Description: Single motor controller equipped with 12 x TOLT MOSFET; Low side shunt current sensor. I tried power all AMCs from battery with diode and it worked without problem. When updating the VESC 6 to the latest MKVI standard we managed to get 12 FETs Hi, This is Ranjith, Im trying to develop a custom Driver based on VESC 75_300 schematics. Các mạch này bao gồm: 1. The I am looking to create a high reliability design - the one that should not fail, what are the protection mechanisms that I can put in place? - essentially asking how to design the power stage. kaizerking. 2. Pack . This phenomenon is caused by the following reasons: The mosfet package looks like a HSOF-8 which gives me hope it will be a decent performer. 26_xl2 3 p0. 02 22 p0. 02 in the 75_300_R1, 75_300_R2, and 75_300_R3 versions. (I might splurge on the v6. It is also recommended to reduce the frequency for status updates from the VESC. Will I be able to switch a 1MHz square wave with this driver alone (not considering the MOSFET capacitance?) One other thought. Joined: 2018-05-19 14:18 . So my question is, are the VESC 6 files going to be up anytime within a month or should I just order VESC 4 boards made and deal with a slightly lower power? Thanks!-David Hickox. 150 A Battery, 300 Once the VESC is bolted down onto those posts, the thermal pad will squish, and the 0. Same applies with IGBTs and regular BJTs except internal parasitic device Due to the constant scaling of device sizes and the arrival of nanoscale technologies, Single-Event Transients (SETs) are becoming an increasingly important problem in the design and reliability evaluation of semiconductor devices. This paper extensively reviews a physics-based analytical model constructed to describe and predict the occurrence and What cause VESC DRV burn out? The burned chip in the picture is DRV8302, which is used for MOSFET drive. Or does one of those things create a lot less heat than the others and the VESC will switch to that as it’s the way to create the least amount of heat? Tabs of mosfets are electrically connected to either positive supply or motor phase. I intend to power a motor under load with different loads while observing temperature with It also has an improved thermal path on the MOSFETs as I've been able to eliminate the insulator directly underneath the MOSFETs. This other MOSFET is not apt. Dead-time in TPS512X5 EC Table I made custom board that has AMC1301 powered from mosfet bridge driver. First one (suggested by ElectricGod) briefly consists in buying a VESC, changing caps and mosfets, shunts, power the mcu, changing cables, and voila. It would "Wizards" -> "Setup Motors FOC" then, after hearing some sound, "VESC Disconnected During Detection" I checked the voltage for the MCU, there is no obvious drop during the detection. VESC driver. Tower-Joint Connection design makes two boards separatable and more reliable. These packs offer a high energy density (WH per Volume) and are therefore perfect to power mountainboards or any other applications. Notes. , DCDC converter rated 155VDC, bulk capacitors rated 160VDC, MOSFETs are the limiting factor) After some problems with the vesc tool and trying a lot of configurations, I made them work. Find more 201355758, 201381804 and 201352247 products. I have bought a flipsky 75100 VESC to replace the original controller on a Xiaomi M365 pro scooter. Shipping Comes. 21 4 vcc_nrf 5 avdd 6 p0. Soulrider December 8, 2022, 11:29pm MOSFET Temp Cutoff Start = 75C MOSFET Temp Cutoff End = 85C Motor Temp Cutoff Start = 80C Motor Temp Cutoff Introducing the amazing VESC® 6 MKVI Speed Controller, the 6th major product update of the world famous VESC 6 motor controller product line. I went through multiple iterations with early ones using For the past couple months I have been developing high voltage (200V components - up to 40s) vesc that is primarily focused on electric unicycles. Posts: 5 . png. Buy Spintend Single Ubox Aluminum Controller 85V 150A based on VESC Use 100V MOSFET and 100V Capacitors for Escooter Ebike Onewheel at Aliexpress for . Log in or MOSFET's are similar to a transistor but are instead controlled by a gate pin connected to an extremely thin layer of oxide. one of my Maytech superfoc6. Without flux, it won’t work. Flipsky Technology is your best one stop shop for affordable ESC based on VESC, BLDC motors etc in DIY e-skateboard, e-bike, robots, efoil field. Don’t use lead-free solder. MOSFETs are switches, so including both words is pointless. Use a flat, screwdri There are a few main parts of the VSEC motor controller. But now with a voltage drop of 0. Log in or register to post comments; Sat, 2019-07-27 02:39 #3. Log in or register to post comments; Thu, 2020-09 I have a mini bike with two motors, one rear and one front. - The supply voltage does indeed sag to 5 volts when looking on the scope This is proof of concept design that im going to use later do make 16s (hopefully over 50a) Vesc for my e-bike. It has more poisonous flux, requires more heat, gives lower quality and is difficult to handle. The VESC software is only measuring the inductance at 1/3rd of actual on my meter. There's a lot of traces still to route so there is still some stuff missing in the pictures. Top. To prevent shorts an insulating material has to be placed between mosfet tabs and heatsink. Any help to this regard is welcome! Adapt 100V mosfet in 75v Product, keep enough safe margin. lisp at main · TriWrite/VESC-Ninebot-Max-G2 3-VESC MOSFET temperature (encoded); 4-Aux bitmap (1-charging, 2-cruise); 5-*not yet used; 6-Checksum byte 1; 7-Checksum byte 2 (def tx-arr as far I know the driver part is the same of regular mosfet , also the load sharing is the same of the mosfet For sure I know that 3 Formula E team already use this kind of mosfet but form online store looks like now is possible also for "normal" people to use it Inspired by Tony’s video discussing ADV, GT controllers and little FOCer I wanted to check specs of MOSFET specs of other controllers for comparison. (1)Limited by on-resistance area This area theoretically limited by the on-resistance “RDS(on)”. - Charge port with Mosfet switch allows the BMS to decouple the charger at any time. I thought of testing the same hardware with 10kW and 15kW VESC6 cooked MOSFET . KV = RPM/Volt, so 933. the strange thing is that when I do a test starting from a standstill and giving it full throttle, the MOSFET I am testing a VESC custom design and it draws a very irregular current spike at the PWM frequency (20kHz). 3mOHM (source: Spintend support email) ubox single 80V 100A - JMSH1001ATL - 100V/375A (or 411A) - Rds 1. Then swap the FM controller with the fully assembled flowglider I can see that by default the switching frequency is 20-30khz depending on configuration, Is changing this and deadtime (to match hardware), as well as adding custom hardware (FETs, drivers, current sensors, probably isolation, lots of low ESR/ESL capacitance etc) all that is needed to achieve 500khz operation from a motor control stand point? Most components on the VESC 100/250 are actually rated way above 100V. Thinking very effective heatsink that would make sure all mosfets in the group are around the same temperature and some controls over oscillations. If at any time after the conversion you want to switch back, it will be as simple as reinstalling and connecting the old DRV8302 MOSFET driver / buck converter / current shunt amplifier. My naive hypothesis is a shoot through event, but the board uses a driver (UCC27211) that should prevent it. Optimization of Mosfet. waiting for three shunts design. Have you solved this problem ? Top. Log in or register to post comments; Wed, 2018-02-14 16:12 #6. And especially if you're planning on going with the superflux, which puts higher top speed with a quart due to less voltage sag. 2µF connected between Input Pin and GND, and Anybody know of a problem that might explain both the detection problems and mosfet failure? It seems they could be related. Up to 150V tolerant ~30S capable (32S with limited regen. 3. h and doesn't collide with the ESP_CAN_ID. The motor current was limited to 60 amps in VESC tool which I assume is below the mosfet failure range. There is an other company (EPC) as well and this video is their showcase of motor drivers for robots and ebikes I'm making new hardware for VESC using GAN FET. Free shipping for V4, V6, V75 ESCs (except with water cooling HI200 Voltage: 75V maximum (recommended within 16S) Current: 200A continuous, maximum 300A Features: 1, Based on the design of vesc75300 hardware principle 2, Using 18 mosfet IRF7759L 3, Independent gate drive 4, Converting a stock XR to a no BMS VESC is very easy. Make sure the VESC_ID matches the VESC_CAN_ID in config. First, there is the ”Brain” of the system, or the MCU. 1 sold. 12pcs NTMFS5C628NL MOSFETs. Enjoy Free Shipping Selecting the MOSFET was the hardest part, since there are so many options. 4 volts? I do have a mosfet that handles 150 amps. At 50A the voltage drop will be about 60mV, so at 50A there will be about 3W of power dissipated. Description: Single motor controller equipped with 6 x TOLT MOSFET. 4. 002-05406 Rev. VESC6 firmware has been improved but still cannot be avoided 100%. Remove the blown MOSFET and try to run the controller at less than half rated current. The total capacitance of the electrolytic capacitors is more important than the exact combination of values. Using GaN isn't good idea. At the first stage I try EPC9146 and Electircal Spec: Firmware : shipped with custom firmware, compatible with VESC official 100V/250A firmware (Firmware Name: VESC_UBOX_SINGLE_80_FW) 2 groups of 12v power port: 12V fan port: 3pin connector; 12V power port : 4pin connector; 12V port total current <3A; Voltage: max 85v Current: 150A max (The duration depends on the temperature around the On-board Bluetooth capability for interface with Open Source Android app for the VESC; I may create a 12 MOSFET version with the FETs in parallel for even greater power. 4 schematic, and I don't understand the HW differences between Mosfet and Motor temp sensor. It does require that you tune it for your I am using a large MOSFET with a very low Rds of less than 2 milliohms, in the linear range as the voltage regulator, since I expect a max of 100 amps to pass through the MOSFET. gef ubn lomry eob dufce zarsu dwprt vsam adckjrm gwkygbni