Current source circuit with temperature compensation

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United States of America Patent

PATENT NO 9007049
APP PUB NO 20130265019A1
SERIAL NO

13857521

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Abstract

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A current source circuit with temperature compensation includes a power supply terminal, a reference current source unit connected to the power supply terminal, a feedback control unit connected to the power supply terminal and the reference current source unit, a current source generating unit connected to the feedback control unit and a ground terminal connected to the current source generating unit. The reference current source unit is a current source connected to the power supply terminal. The feedback control unit includes a first switching element, connected to the current source, and an inverting amplifier, connected between the current source and the first switching element. The current source generating unit includes a second switching element, connected to the first switching element, the current source and the inverting amplifier, and a first resistor, connected to the first and the second switching elements and the ground terminal.

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Patent Owner(s)

Patent OwnerAddress
IPGOAL MICROELECTRONICS (SICHUAN) CO LTD9 \/ F BLOCK A 33 JITAI ROAD HIGH TECH ZONE CHENGDU SICHUAN 610041 CHENGDU CITY SICHUAN PROVINCE 610041

International Classification(s)

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  • 2013 Application Filing Year
  • G05F Class
  • 1215 Applications Filed
  • 1038 Patents Issued To-Date
  • 85.44 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20132014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Junwei Sichuan, CN 17 48

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges684501254429216532101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8091 - 100100 +0255075100125150175200225250275300325350375400425450475

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