A Boost Driver Containing a Charge-Pump Circuit with Charge-Capability during Power Drive Operation

Abstract

This paper describes a boost driver containing a charge-pump (CP) circuit and a method for its voltage regulation. The proposed driver can boost its DC link voltage by the voltage level of a capacitor in the CP circuit. An advantage of this driver is that it can charge the capacitor during power drive, enabling the driver to work continuously with sufficient boost performance. Moreover, the driver can reduce the harmonics in the output voltage. The numerical analysis and experimental examinations assess these features. Furthermore, the experiments investigate whether the driver not only performs as well as the conventional boost driver but also has a higher efficiency than it.