Huawei DriveONE motor controller transformer analysis

The transformer of Huawei DriveONE motor controller adopts PM3045NL from Pulse Electronics, which is a 2W forward transformer that provides +15V for device switch on and -7.5V for strong switch off. The package structure provides 3750KV ac withstand voltage on a compact (15.8×12.5×10.2mm) SMD platform.