公开(公告)号：WO2016122977A3

公开(公告)日：2016-09-22

申请号：PCT/US2016014472

申请日：2016-01-22

Applicant: QUALCOMM INC

Inventor： PELUSO VINCENZO ,  LIU BING

IPC: G05F1/575

CPC classification number: G05F1/575 ,  G05F3/16 ,  G05F3/26 ,  G05F3/262

Abstract: The present disclosure includes circuits and methods for generating bleeding currents. In one embodiment, a pass transistor of a voltage regulator receives a voltage from a feedback circuit. A negative resistance circuit is coupled to a node to produce a bleeding current that turns on when needed and is otherwise off to save power. In one embodiment, the negative resistance circuit includes stacked current mirrors and a resistor. In another embodiment, the resistor has a first terminal that receives the voltage from the feedback circuit and a second terminal is coupled to a constant reference voltage that tracks the input voltage.

Abstract translation: 本公开包括用于产生放电电流的电路和方法。 在一个实施例中，电压调节器的传输晶体管从反馈电路接收电压。 负电阻电路耦合到节点以产生放电电流，该电流在需要时开启，否则关闭以节省电力。 在一个实施例中，负阻电路包括堆叠的电流镜和电阻器。 在另一个实施例中，电阻器具有第一端子和第二端子，第一端子接收来自反馈电路的电压，第二端子连接至跟踪输入电压的恒定参考电压。