This application note provides information on connecting gate drivers to controllers and IGBT modules. This information will help to minimize the risk of faults caused by electromagnetic interference, signal oscillation or induced noise in the gate driver and IGBT module.
The document explains how to minimise interference when linking gate drivers, controllers and IGBT modules. It stresses short wiring, proper cable routing and separation of low‑power control signals from high‑power supply lines.
Key design tips include using twisted‑pair or shielded cables, keeping cable length under three metres, maintaining at least 30 cm spacing between signal and power cables, and adding small capacitors (≈1 nF) and 10 kΩ resistors close to the driver to suppress differential mode noise. This manual is written in Chinese.
| Maximum cable length | 3 m |
|---|---|
| Minimum spacing between signal and power cables | 30 cm |
Cables should be as short as possible and must not exceed three metres.
The minimum spacing is 30 cm, and they should only cross perpendicularly.