New supplier -> Price reduction 32%!

This kit includes all parts for the control logic of a 3-phase inverter and it's interface to a power stage. That means you will need to design your own power stage. The reason is that power electronics are expensive and heavy. So first of all I don't want to stock them, second of all I don't want to ship huge parcels.

As opposed to the Rev 2 kit this versions comes with a fully populated main board to which you only need to add the through-hole pin headers. Also the Rev 3 sensor board directly supports resolvers to run PMSM motors found in most OEM cars. It supports all variants of encoder feedback that the V2 board supported. Asynchronous motor support is mature since 5 years.

For support please use the forum https://openinverter.org/forum


You will find documentation here: https://openinverter.org/wiki

Images above are for demonstration only, you need to hand-populate all components (except for the main board). You do not need to order a Wifi module separately, it is included!

Here is the complete part list:


  • 3 dual gate drivers
    • PCB
    • 2 DC/DC converters per driver
    • 2 Si8261 gate drive isolators per driver
    • all needed resistors, capacitors and pin headers
  • 2 current sensor boards
    • Board is tied directly to phase output cable
    • Melexis hall current sensors
    • all needed resistors, capacitors and pin headers
  • 1 Voltage sense board
    • Isolated bus voltage sensing
    • JCurve temperature sensor formed like a lug, so can be directly mounted on heat sink
    • all needed resistors, capacitors and pin headers
  • main board V3
    • All SMT parts populated, you just need to add the pin headers
    • Olimex MOD-WIFI-ESP8266 for Wifi connectivity (pre-programmed)
    • Buck converter
    • 4-channel comparator for over current protection
    • 500mA Output transistors for digital outputs
    • all needed pin headers
  • Connectors
    • Ribbon cable
    • 24-pole pin header connector
    • 16-pole pin header connector
    • 14-pole pin header connector
    • Molex connectors (4x4-pin, 2x3-pin, 1x2-pin)




If you buy this kit, you need the following parts to complete the inverter:


  • IGBTs (400A, 1200V or less depending on your requirements)
  • DC bus caps (elcap or filmcap, depending on your requirements. 800µF or more)
  • Snubber caps (about 1µF film cap)
  • Heat sink and case
  • waterproof cable bushing for power cables
  • waterproof connector for control signals
  • Mounting material for fixing the PCBs to the case (screws, angles)


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Inverter Kit Rev 3

  • Product Code: invkit3
  • Availability: 4
  • 380.80€

  • Ex Tax: 320.00€

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