Constant Current DC-DC Converter
    1.
    发明申请
    Constant Current DC-DC Converter 有权
    恒流DC-DC转换器

    公开(公告)号:US20130141006A1

    公开(公告)日:2013-06-06

    申请号:US13300219

    申请日:2011-11-18

    申请人: Wei Song

    发明人: Guo Jun Li Wei Song

    IPC分类号: G05F3/08 H05B37/02

    摘要: A device includes a positive power supply voltage node; and a first operational amplifier including a first input, a second input, and an output coupled to the second input. The device further includes a first resistor coupled between the second input of the first operational amplifier and the positive power supply voltage node; a second resistor coupled between the output of the first operational amplifier and an electrical ground, and is configured to receive a same current flowing through the first resistor; a second operational amplifier including a first input coupled to the second resistor, and an output coupled to an output node; and a third resistor coupled between the electrical ground and a second input of the second operational amplifier.

    摘要翻译: 一个装置包括一个正电源电压节点; 以及包括第一输入,第二输入和耦合到第二输入的输出的第一运算放大器。 该装置还包括耦合在第一运算放大器的第二输入端和正电源电压节点之间的第一电阻器; 耦合在所述第一运算放大器的输出端和电接地之间的第二电阻器,并且被配置为接收流过所述第一电阻器的相同电流; 第二运算放大器,包括耦合到第二电阻器的第一输入端和耦合到输出节点的输出端; 以及耦合在所述电接地和所述第二运算放大器的第二输入端之间的第三电阻器。