一种电机的IPM模块的控制装置、方法、电机和空调
By setting clamping and sampling units in the IPM module, using reverse diodes and sampling resistors to detect the reverse voltage of the inverter bridge, and shutting off the load under software control, the inverter bridge arm shoot-through problem is solved, improving the module's operational reliability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2023-12-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, when the inverter in the IPM module experiences a shoot-through phenomenon between the upper and lower bridge arms, a large current path can easily form, causing the module to burn out and affecting operational reliability and safety.
By setting clamping and sampling units in the IPM module, the reverse voltage of the inverter bridge is detected using reverse diodes and sampling resistors, and the load is turned off under software control, thus avoiding bridge arm shoot-through and improving the module's operational reliability and safety.
This effectively avoids shoot-through between the upper and lower bridge arms in the inverter, improves the operational reliability and safety of the IPM module, and extends the product lifespan.
Smart Images
Figure CN117748923B_ABST