HD22010-2 Block Diagram of Rectifier
The 3-phase AC current, via EMI filter, is input to the rectifying circuit, which rectifies the AC power into pulsating DC output. Through the passive power factor correction (PFC) circuit, the pulsating DC voltage is converted into constant DC voltage, which is then converted by the DC/AC HF inverter into HF AC voltage. Finally, the HF rectifying circuit converts the HF AC voltage into HF pulsating DC voltage to be output via HF EMI filter.
The pulse width of the DC/AC HF conversion circuit is modulated through the PWM circuit to regulate output voltage (including voltage stabilization and setting).

The operation of the rectifier is monitored by the local monitoring system, including protection of rectifier and voltage regulation. The local monitoring system also reports the operating data of the rectifier to the PCU and receives control commands from it.

Technical Specifications of HD22010-2 (HD11020-2)

The rectifier mainly converts AC power to DC power and may work in automatic mode (controlled by PCU) or manual mode (controlled manually). Four models are availabe to cover the needs of different users.