PWM rectifiers have the characteristics of large power factor, bidirectional power flow and constant directvoltage.
PWM整流器具有功率因数高、能量可双向流动、直流电压恒定等优点。
2
In this connection it is endeavoured to reduce the risk of an increase in voltage in a circuit with several directvoltage sources.
在这方面,试图减少在具有几个直流电压源的电路中产生电压升高的风险。
3
The characters of waste water treatments using dielectric barrier discharge, pulsed high directvoltage discharge and contact glow-discharge cold plasma are analyzed.