Renault has been using this charger from 2012 to 2018. It adopts a non-isolated design and there is a complete disassembly video. This 43kW charger design is not used by many car companies. European car companies initially configured 7.2kW charging for PHEV and 11-22kW charging for large-capacity BEV. As the requirements for charging speed increase, there may be some negotiation on how to implement the solution of 22kW and above.
Figure 1 Chameleon charger
01. System Overview
This design approach, according to the patent, integrates the inverter and motor (synchronous, with excitation winding) into the charging process.
Figure 2 Chameleon charger structure
The one on the right here is the high voltage distribution box and the main part. DC power charges the battery through the neutral point of the three-phase winding and the negative pole of the DC bus. The black plastic box in the figure below is the voltage regulator rectifier (11, 12) and its control circuit (the control board completes the management of the charging process and communicates with the charging station)
Figure 3 The left half of the Chameleon charger
02. Left half control circuit part
Today we will focus on analyzing the right half, mainly those involved in the video.
Figure 4 The disassembled power distribution box structure (front and back)
After removing the wiring harness, only the following capacitors and rectifier modules remain.
Figure 5 Capacitor and rectifier module
As shown in the figure below, the communication and the entire control circuit are embedded in this black part, as shown in the figure below, using a folding board process.
Figure 6 Controller circuit part
Figure 7: Partial integration of control circuits
Below this board is the IGBT driver board, which is connected using a plug-in connector. The following figure shows the connection part more clearly.
Figure 8: Control and connection of two boards
The picture below is the EPM provided by LEAR, which is the drive control part of the rectifier IGBT .
Figure 9 IGBT driver connection board
The part at the bottom is the IGBT module, and these are compared with the patent.
Figure 10 The bottom is the IGBT module
On the upper side is a current sensor embedded
Figure 11 Current sensor
Summary: We will talk about the input filtering part of this on-board charger BCB separately tomorrow.
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Recommended ReadingLatest update time:2026-01-10 19:57
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