公开(公告)号：EP1826766B1

公开(公告)日：2009-09-30

申请号：EP06425124.2

申请日：2006-02-28

Applicant: STMicroelectronics S.r.l.

Inventor： Vimercati, Daniele ,  Bolandrina, Efrem ,  Garofalo, Pierguido

IPC: G11C5/14 ,  G05F3/20

CPC classification number: G05F3/30 ,  G11C5/147

公开(公告)号：EP1826766A1

公开(公告)日：2007-08-29

申请号：EP06425124.2

申请日：2006-02-28

Applicant: STMicroelectronics S.r.l.

Inventor： Vimercati, Daniele ,  Bolandrina, Efrem ,  Garofalo, Pierguido

IPC: G11C5/14 ,  G05F3/20

CPC classification number: G05F3/30 ,  G11C5/147

Abstract: A method is described for generating a controlled current by means of a Band Gap circuitry (10) comprising the steps of:
- supplying on a Band Gap node (BGAP), a Band Gap voltage signal that is stable in temperature and power supply;
- driving a controlled current generator (2) by means of this Band Gap voltage signal; and
mirroring the controlled current signal generated on an output terminal of the Band Gap circuitry;
Advantageously according to the invention, the method further comprises, after the driving step, a step of locally suppressing a disturb of the controlled current signal generated by the controlled current generator (2) by means of a disturb suppression circuit (11) connected to said Band Gap node acting on said Band Gap voltage signal.
A disturb suppression circuit and a Band Gap circuitry for the generation of a controlled current signal are also described.

Abstract translation: 描述了一种方法，用于产生由带隙电路（10）的方式受控电流，包括以下步骤： - 供给的带隙节点（BGAP）上，做了一个带隙电压信号是在温度和电源稳定; - 由该带隙电压信号来驱动受控电流发生器（2）; 以及在带隙电路的输出端子镜像受控电流信号生成的上; 有利的是雅丁到本发明，该方法还包括，在驱动步骤中，通过一个干扰抑制电路的方式局部地抑制由受控电流发生器（2）中产生的控制电流信号的干扰的工序（11）后连接到所述 带隙节点作用在所述带隙电压信号。 因此描述的干扰抑制电路和一个带隙电路，用于控制电流信号的生成。