公开(公告)号：US20090121700A1

公开(公告)日：2009-05-14

申请号：US12233853

申请日：2008-09-19

申请人： Hirofumi WADA ,  Atsuo Inoue ,  Noriaki Matsuno

发明人： Hirofumi WADA ,  Atsuo Inoue ,  Noriaki Matsuno

IPC分类号： G05F3/16

CPC分类号： G05F3/30 ,  G11C5/147

摘要： An inverse temperature characteristic generating circuit decreases an output voltage Vout by a voltage VGS, and supplies the resultant voltage as a voltage VA to a temperature characteristic generating circuit. The temperature characteristic generating circuit includes a differential amplification circuit that receives a terminal voltage VAP between resistances R22 and R23 and an emitter voltage VAM of a bipolar transistor T21, and outputs a control signal VC. When the terminal voltages VAP and VAM are equal to each other, an operation of a circuit is stable. The temperature characteristic of the voltage VA during the stable operation, and the temperature characteristic of the voltage VGS are inverse to each other and therefore cancel each other, so that the constant voltage Vout independent of temperature is output. In addition, the output terminal is not connected via a resistance to a ground, so that low current consumption can be easily achieved.

摘要翻译： 逆温度特性发生电路通过电压VGS降低输出电压Vout，并将所得到的电压作为电压VA提供给温度特性产生电路。 温度特性发生电路包括差分放大电路，其接收电阻R22和R23之间的端子电压VAP和双极晶体管T21的发射极电压VAM，并输出控制信号VC。 当端子电压VAP和VAM彼此相等时，电路的操作是稳定的。 稳定运行时的电压VA的温度特性和电压VGS的温度特性彼此相反，因此彼此抵消，从而输出与温度无关的恒定电压Vout。 此外，输出端子不通过电阻连接到地，从而可以容易地实现低电流消耗。