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    • 3. 发明公开
    • 홀 소자 제어 회로
    • 霍尔元件控制电路
    • KR1020110132997A
    • 2011-12-09
    • KR1020110053301
    • 2011-06-02
    • 세미컨덕터 콤포넨츠 인더스트리즈 엘엘씨
    • 구라다께시쯔다히로유끼가미야도모노리나가이히로끼
    • G05F3/02
    • G01R33/0023G01R33/072
    • PURPOSE: A hall device control circuit is provided to simplify the input-output wiring of a camera module by supplying a constant voltage to an input device of a high-side input terminal. CONSTITUTION: A first terminal(T1a) supplies a bias voltage to the high-side input terminal of a hall device(14). A second terminal(T2b) supplies a ground potential to the low potential input terminal of the hall device. A source terminal of a transistor is connected to the current potential. A drain terminal is connected to the first terminal. An operational amplifier(OP2) differentially amplifies the voltage of the first terminal and controls the gate voltage of the transistor. A wiring material is composed of a wiring transferring the bias voltage from the hall device control circuit.
    • 目的:提供一个霍尔设备控制电路,通过向高侧输入端的输入设备提供恒定电压来简化摄像机模块的输入输出接线。 构成:第一端子(T1a)向霍尔器件(14)的高侧输入端子提供偏置电压。 第二端子(T2b)向霍尔器件的低电位输入端子提供接地电位。 晶体管的源极端子连接到电流电位。 漏极端子连接到第一端子。 运算放大器(OP2)差分放大第一端子的电压并控制晶体管的栅极电压。 布线材料由传送门厅装置控制电路的偏置电压的布线构成。