What makes VESC DRV Burned?

100% Eco-Friendly, 110kg Weight class, 15kg Weight class, 2019-8 6374ha 监控机器人 security monitoring robots, advanced electric skateboard, agile robots, agricultural robots, airplace, All Terrain, all terrain offroad skateboard, all-electric hydrofoil speed boat, Armour, autonomous agile robots, autonomously monitor security, autonomous security robots, battle robot kit, Battlekit, belt-driven motor skateboard, BLDC mode, built-in robot weapon, cable camera, canbus connection, Combat robotics, commercial belt driven boards, Compatible with sensored or sensorless motor, competition robotics, compition robots, compound, controller for Electric skateboard, controller for Esk8, cruiser board, delivery robots, direct drive electric skateboard, Diver propulsion vehicle, DIY electric hydrofoil, DIY Electric Hydrofoil & Surfboard Remote Propulsion System, DIY Electric Hydrofoil Board, DIY Robotic Kits, DIY VeFoil Kit, drone, dust-proof, E-fin, E-sup, E-surfboard, eboard, efoil motor, efoils, Electirc speed controller, electric boat motor waterproof trolling motor, electric flying surfboard, Electric Foil Board, electric foiling, electric hydrofoil, electric Hydrofoil Bike, Electric Hydrofoil Board, Electric Hydrofoil Boards, electric hydrofoil surfboard, Electric Hydrofoil System, electric hydrofoil water taxi, Electric jet board, Electric kayak motors, Electric motorcycle, electric motorised jet board, electric outboard motors, electric powerd carbonfiber hydrofoil water craft, electric powered jet board, electric robots, electric skate, electric skateboard propulsion configuration, electric skateboarding, electric sportboats, electric SUP, Electric SUP motors, electric surfboard, electric wakeboard, electric watercraft, electric Yachts, eSurfScooter, featherweight robots, Fighting Robot Kits, flying surfboard, FOC mode, foiling, Giant Mech Battle, Giant robot, Great start-up, heat pump control board, heavyweight Robot Wars fighting machine, heavyweight robots, helicopter, high quality components construction, Hill climb skateboard, hub motor drived skateboard, hybrid board, hybrid skateboarding, Hydrofoil Bike, hydrofoilsurfing, jet propusion unit, jet-engine, jetsurfboard, lightest motorized surfboard, Lightweight Combat Robot Kit, Marine Outboard Engines, marine ROV, Mini-Sumo Robot Kit, monitoring robots, motor surfboard, motorboard, motorcycle, motorised surfboard, motorized skateboard, motorized surfboard, multi-copter, multi-rotor, OEM skateboard, Off-road and all-terrain Unmanned Ground Vehicles (UGV), outdoor autonomous security robot, paddle board, parking system, Personal Propulsion System, powered surfboard, powerful arm robots, powerful electric water sports gear, powerful skateboard, printing device, programmable VESC, racing boat, radio control, Rapid Charging, rc airplane, rc car, rc drone, rc fight, rc robot battle, remote control robotics, Remote Operated Vehicle, rescue boat, Robot battles, Robot Kits, robot war, Robot weapon, robotic combat and competition, Robotic Combat Competition, robotic competition, robotics, Robotics combat, robots electric system for KOB, Robots fight, Robots fighting, robots for security and safety monitoring in harsh terrain, ROV, ROV thruster, ROV´s, scim boat, Sea Scooter, Security Patrol Robot, security robots, skidaddle ROV, speed boards, speed controller, splash waterproof, sportboats, Stand paddle, stand up paddle board, Stand-Up PaddleBoards, Submarine Propulsion Systems, SUPER esc, SUPER FOC mode, surf scooter, Surfboarding, surfjet, Synthetic, torqueboards, tracked remote controlled robot, Underwater Diving Scooter, underwater drone, Underwater Propulsion Device, Underwater Propulsion Scooter, underwater remotely operated vehicles, Underwater Scooter, underwater thruster, Underwater vehicle components, Underwater vehicle systems, updatable vesc, Vertical Spinner robots, VESC benjamin vedder controller, VESC controller, VESC6.0 based controller, VESC_TOOL compatible controller, Wakeboarding, Wakeskating, Wakesurfing, wakiling robots, water bike, Water jet propulsion devices, WATER JET SYSTEM, Water Sports, waterproof underwater propulsion, Wireless Control, wood skateboard, yachat -

What makes VESC DRV Burned?

Some customers might have DRV burned problem, it's not because we sent bad controller or we didn't tested before shipment. 

All products has been doubled tested and checked before shipment to make sure the products are good and works normal before shipment. 

So below we will tell you some common reasons of DRV burned problem:

V4 use DRV8302 driver chip to be used as MOS driver, this part is most vulnerable component in VESC, in V6 this part has been upgraded to better driver chip, but this problem is hard to avoid, please be careful when use VESC and follow below suggestions.

There's 3 common reasons:

  1. Motor load weight is too heavy, or has instantaneous stall.
  2. Motor rotation speed is too fast.
  3. Brake force is too strong when brake.

Explanation:

  1. When load weight is too heavy: Driver chip receives control instruction from MCU, adjust motor current direction by output high voltage to let MOS on and off. Therefore, Drive IC need to built-in boost circuit to reach high voltage. If motor load weight is too heavy, then driver chip need to output high voltage so that MOS can on and off, but high voltage is not good for MOS and drive IC, would easy burn drive IC.
  2. Motor rotation speed too fast: Please noted, here means the Electric RPM (ERPM) too high would have the problem.

    Electric RPM (ERPM)=Motor Pole Pairs Number x Rotation Speed (RPM). If motor Pole Pairs Number is too high, ERPM would be higher, at this time MCU or driver chip don’t have the ability to solve such high speed and load-weight will be very high, which would cause the driver chip overheat or burned out.

    Suggest in BLDC mode set 5-6W ERPM, in FOC mode set 3-4W ERPM.

  3. Stall and brake situation: Motor would stall when hall sequence is wrong, skateboard hit something or motor has things gets inside of the motor.

    Both stall and brake will make motor instantaneous stall, rotated mechanical energy covert to electrical energy instantly, which voltage rise high in VESC power supply circuit, and then burn drive IC.

  4. Firmware: If controller firmware is not good, will also make MOS switch controller inaccurately, which will cause driver chip working pressure too high and burned.

  5. Driver chip has to many function: V4 driver chip also has step-down circuit except for boost driver, it can convert power supply voltage to 5V and 3.3V. This function makes the VESC can only accept input voltage lower than 60V, even if slightly brake force, working voltage will be higher than 60V and then burn driver chip. Driver chip also has built in computing function after current sampling, this function also makes the driver chip heat, with different factors that make driver chip heat at the same time, finally it will be burned out because of overheat.

 

How to avoid these problems?

  • Match with suitable power motor, motor power is not the higher the better, if motor power is not suitable with controller, higher power motor brake force is stronger, would easy burn driver chip.
  • Set correct parameters, especially hall sensor sequence, do not run FOC mode in high pole number motors, and do not use high KV motor.

  • Slightly brake, if you need to brake strongly, then you must use high discharge rate and BMS with same port of charge and discharge, and add rheostatic brake with voltage protection function.

  • Use V6 hardware, V6 use DRV8301 driver chip, firmware also has been optimized. It use other independent component to reach the function of 5V/3.3V step-down circuit, reduce heat factors and reduce DRV problem probability.

VESC_TOOL Compatible Controllers Benjamin Vedder Electric Speed Controller, Dual VESC  V6 based Controller: SUPERFOC6.8 50A VESC6.0 based Controller / 200A VESC  V4 based Controller: VESC50A/ VESC50ADU /VESC100A  180A anti-spark switch  Application: Electric skateboard, longboard, mountainboard, all terrain offroad skateboard, fighting robots, walking robots, ROV, fishing boat, city skateboard, Esk8, eskate, e-bike, mtb e-bike, e-scooter, etc.,

 


Tags