Patent ID: 10128736

Abstract:
A rectifier device is described herein. In accordance with one exemplary embodiment, the rectifier device includes a semiconductor substrate doped with dopants of a first doping type and at least one well region arranged in the semiconductor substrate and doped with dopants of a second doping type. Accordingly, the at least one well region and the surrounding semiconductor substrate form a pn-junction. The rectifier device further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode connected parallel to the load current path. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. The rectifier device further includes a control circuit and a biasing circuit. The control circuit is configured to switch on the first MOS transistor for an on-time period, during which the diode is forward biased. The first MOS transistor and the diode are integrated in the semiconductor substrate, and the control circuit is at least partly arranged in the at least one well region. The biasing circuit is configured to generate a biasing voltage that is applied to the at least one well region such that the pn-junction is reverse biased.