公开(公告)号：US08736357B2

公开(公告)日：2014-05-27

申请号：US13685850

申请日：2012-11-27

Applicant: RF Micro Devices, Inc.

Inventor： Praveen Varma Nadimpalli ,  Pradeep Charles Silva

IPC: G05F1/10 ,  G04F3/02

CPC classification number: G05F3/02 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/24 ,  H03F3/72 ,  H03F2203/7215 ,  H03F2203/7221

Abstract: A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.

Abstract translation: 产生一个或多个输出电流的差分电压控制电流源基于单个外部电阻器。 差分电压控制电流源可以产生与使用单个外部电阻器的接收到的差分电压和偏置电流成比例的输出电流。 该技术可用于生成多个准确和流程独立的电流源。 电流源可以是零温度系数（ZTC）电流，与绝对温度（PTAT）电流成比例，或与绝对温度（NTAT）电流成反比。 电流源的输出可能与外部电阻的电阻成反比。

公开(公告)号：US20130088286A1

公开(公告)日：2013-04-11

申请号：US13685850

申请日：2012-11-27

Applicant: RF Micro Devices, Inc.

Inventor： Praveen Varma Nadimpalli ,  Pradeep Charles Silva

IPC: G05F3/02

CPC classification number: G05F3/02 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/24 ,  H03F3/72 ,  H03F2203/7215 ,  H03F2203/7221

Abstract: A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.

Abstract translation: 产生一个或多个输出电流的差分电压控制电流源基于单个外部电阻器。 差分电压控制电流源可以产生与使用单个外部电阻器的接收到的差分电压和偏置电流成比例的输出电流。 该技术可用于生成多个准确和流程独立的电流源。 电流源可以是零温度系数（ZTC）电流，与绝对温度（PTAT）电流成比例，或与绝对温度（NTAT）电流成反比。 电流源的输出可能与外部电阻的电阻成反比。