Patent ID: 7787271
Filing Date: 2010-08-31
Classification: H02H

Abstract:
1. A power supply device comprising: a diode bridge including first and second terminals coupled to a voltage reference, a third terminal, and a fourth terminal, the diode bridge configured to rectify an input voltage; a converter module including a first terminal coupled to the third terminal of the diode bridge and a second terminal coupled to the fourth terminal of the diode bridge, the converter module configured to convert the input voltage into a direct current regulated output voltage; an inrush control module including a first terminal coupled to the third terminal of the diode bridge, a second terminal coupled to the second terminal of the diode bridge, and a third terminal coupled to the first terminal of the diode bridge, the inrush control module configured to gradually activate a transistor and to limit an inrush current peak value based upon a zero crossing being detected in the input voltage; and an inrush limiter circuit including: