Patent ID: 9106128
Filing Date: 2015-08-11
Classification: H02M,H03L

Abstract:
1. A charge pump circuit having a current mirror structure, comprising: a first voltage controller comprising a plurality of first resistors and a plurality of first switches, and in response to a switching control signal corresponding to a bias current, driving the plurality of first switches to allow a current path passing through the plurality of first resistors to bypass, thereby controlling a voltage level of an output end; a second voltage controller comprising a plurality of second resistors and a plurality of second switches, and in response to the switching control signal, driving the plurality of second switches to allow a current path passing through the plurality of second resistors to bypass, thereby controlling a voltage level of an output end to correspond to the voltage of the output end of the first voltage controller; and an output unit charging or discharging an external capacitor with a voltage, based on the voltage level of the output end of the first voltage controller.