发明名称 Voltage regulator and control method thereof
摘要 A voltage regulator and a control method thereof are provided to dynamically adjust an output voltage. The voltage regulator comprises a plurality of switching transistors and a control circuit. The first end of each switching transistor receives a driving voltage, and the second end of each switching transistor is electrically connected to the end which outputs the output voltage. The input end and the feedback end of the control circuit respectively receive a reference voltage and the output voltage. A plurality of output ends of the control circuit are electrically connected to the control ends of the switching transistors respectively. Switching transistors adjust the output voltage. The control circuit compares the output voltage with the reference voltage, and selectively turns the switching transistors on or off according to the comparison between the output voltage and the reference voltage, to control the output voltage to approach the reference voltage.
申请公布号 US9423810(B2) 申请公布日期 2016.08.23
申请号 US201414231084 申请日期 2014.03.31
申请人 INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE 发明人 Chen Long-Der;Huang Dau-Chen;Lin Yu-Chen;Chen Ke-Horng;Peng Shen-Yu
分类号 G05F1/00;G05F1/59;G05F1/563 主分类号 G05F1/00
代理机构 Locke Lord LLP 代理人 Locke Lord LLP ;Xia, Esq. Tim Tingkang
主权项 1. A voltage regulator, adapted to dynamically adjust an output voltage from a first output end of the voltage regulator, and comprising: a plurality of switching transistors, wherein each of the plurality of switching transistor has a first end, a second end, and a control end, the first ends receive a driving voltage, the second ends are electrically connected with the first output end, and the switching transistor is configured to adjust the output voltage; and a control circuit, comprising an input end, a feedback end, a plurality of second output ends and a plurality of driving modules; wherein the input end receives a reference voltage, the feedback end receives the output voltage, the second output ends are electrically connected with the control ends of the switching transistors respectively, the plurality of driving modules are electrically connected with each other, each of the plurality of driving modules receives the reference voltage and the output voltage and electrically connects with one of the plurality of switching transistors, and the control circuit is configured to compare the output voltage with the reference voltage, and selectively turn on or off the plurality of switching transistors according to the comparison between the output voltage and the reference voltage so that the output voltage approaches the reference voltage; wherein when the output voltage approaches the reference voltage and one of the plurality of switching transistors is repeatedly switched between on and off, the voltage regulator keeps the switching transistor, which is repeatedly switched between on and off, turned on, to stabilize the output voltage; and wherein an Ith stage driving module in the plurality of driving modules selectively turns on or off the switching transistors corresponding to the Ith stage driving module according to the comparison between the reference voltage and the output voltage when receiving a triggering signal, and I is a positive integer.
地址 Hsinchu TW