公开(公告)号：US20140070788A1

公开(公告)日：2014-03-13

申请号：US14020949

申请日：2013-09-09

Applicant: STMicroelectronics R&D (Shanghai) Co. Ltd.

Inventor： Ansgar Pottbaecker ,  Panny Cai

IPC: G05F3/08

CPC classification number: G05F3/08 ,  G05F3/22 ,  G05F3/30

Abstract: A bandgap reference voltage generator includes a bipolar assembly having a first resistor, a first branch and a second branch that is in parallel with the first branch. The first branch includes a first bipolar transistor with a base coupled to a fixed voltage. The second branch includes a second bipolar transistor with a base coupled to the fixed voltage and a second resistor coupled in series with the second bipolar transistor. A differential module is coupled to the first and second bipolar transistors and configured to balance the currents in the first and the second branches. The bandgap reference voltage is output at a node to which the first resistor is connected.

Abstract translation: 带隙参考电压发生器包括具有第一电阻器，第一分支和与第一分支平行的第二分支的双极组件。 第一分支包括具有耦合到固定电压的基极的第一双极晶体管。 第二分支包括具有耦合到固定电压的基极的第二双极晶体管和与第二双极晶体管串联耦合的第二电阻器。 差分模块耦合到第一和第二双极晶体管并且被配置为平衡第一和第二分支中的电流。 带隙参考电压在与第一电阻器连接的节点处输出。

公开(公告)号：US09568933B2

公开(公告)日：2017-02-14

申请号：US14020949

申请日：2013-09-09

Applicant: STMicroelectronics R&D (Shanghai) Co. Ltd.

Inventor： Ansgar Pottbaecker ,  Panny Cai

IPC: G05F3/16 ,  G05F3/08 ,  G05F3/30 ,  G05F3/22

CPC classification number: G05F3/08 ,  G05F3/22 ,  G05F3/30

Abstract: A bandgap reference voltage generator includes a bipolar assembly having a first resistor, a first branch and a second branch that is in parallel with the first branch. The first branch includes a first bipolar transistor with a base coupled to a fixed voltage. The second branch includes a second bipolar transistor with a base coupled to the fixed voltage and a second resistor coupled in series with the second bipolar transistor. A differential module is coupled to the first and second bipolar transistors and configured to balance the currents in the first and the second branches. The bandgap reference voltage is output at a node to which the first resistor is connected.

Abstract translation: 带隙参考电压发生器包括具有第一电阻器，第一分支和与第一分支平行的第二分支的双极组件。 第一分支包括具有耦合到固定电压的基极的第一双极晶体管。 第二分支包括具有耦合到固定电压的基极的第二双极晶体管和与第二双极晶体管串联耦合的第二电阻器。 差分模块耦合到第一和第二双极晶体管并且被配置为平衡第一和第二分支中的电流。 带隙参考电压在与第一电阻器连接的节点处输出。