公开(公告)号：US20140070873A1

公开(公告)日：2014-03-13

申请号：US13607562

申请日：2012-09-07

申请人： ANDRE GUNTHER ,  KEVIN MAHOOTI

发明人： ANDRE GUNTHER ,  KEVIN MAHOOTI

IPC分类号： H01L35/00

CPC分类号： G05F3/242 ,  G05F3/30

摘要： A method for generating a reference voltage is disclosed. The method includes generating a proportional-to-absolute temperature (PTAT) voltage across a first pseudo resistor. The first pseudo resistor includes a transistor. The method also includes converting the PTAT voltage to a current based on a resistance of the first pseudo resistor. The method also includes mirroring the current using a current mirror circuit and converting the mirrored current to the PTAT voltage using a second pseudo resistor. The second pseudo resistor includes a transistor. The first pseudo resistor and the second pseudo resistor include equal transistor types. The method also includes generating a complimentary-to-absolute temperature (CTAT) voltage, and summing the converted PTAT voltage and the CTAT voltage to produce the reference voltage. The resulting reference voltage is temperature independent.

摘要翻译： 公开了一种用于产生参考电压的方法。 该方法包括跨越第一伪电阻器产生比例绝对温度（PTAT）电压。 第一伪电阻器包括晶体管。 该方法还包括基于第一伪电阻器的电阻将PTAT电压转换为电流。 该方法还包括使用电流镜像电路对电流进行镜像，并使用第二伪电阻将镜像电流转换为PTAT电压。 第二伪电阻器包括晶体管。 第一伪电阻器和第二伪电阻器包括相等的晶体管类型。 该方法还包括产生互补绝对温度（CTAT）电压，并将转换的PTAT电压和CTAT电压相加以产生参考电压。 所得到的参考电压与温度无关。