Patent ID: 9520787
Filing Date: 2016-12-13
CPC Classification: H02M

Claim Text:
1. A voltage regulator device, comprising: at least one output unit outputting an output signal, wherein the output unit includes a first transistor, a second transistor and an energy storage element, and the second transistor is electronically connected to the first transistor and the energy storage element, respectively; a current sensing unit electronically connected to the energy storage element to sense a current of the energy storage element, a control unit electronically connected to the current sensing unit and the output unit, respectively; at least one transistor driving unit electronically connected to the control unit and the output unit; and a pulse width modulation unit electronically connected to the control unit and the transistor driving unit, respectively, wherein when the current sensing unit senses that the current flowing through the energy storage element of the output unit is negative, the control unit correspondingly controls to cut off a negative current flowing through the energy storage element.