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Constant current source circuit with variable temperature compensation

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G05F-003/08
출원번호 US-0218340 (1998-12-22)
발명자 / 주소
  • Demsky Kevin Paul
  • Ewen John Farley
  • Paschal Matthew James
출원인 / 주소
  • International Business Machines Corporation
대리인 / 주소
    Truelson
인용정보 피인용 횟수 : 23  인용 특허 : 16

초록

The constant current source circuit provides current that compensates for changes in performance resulting from changes of temperature. The circuit mixes variable amounts of current having a negative temperature coefficient with current having a positive temperature coefficient. Analog and digital e

대표청구항

[ What is claimed is:] [1.]1. A constant current source circuit, comprising:a first current source having a positive coefficient of temperature compensation to generate a first bias voltage connected to a first voltage-controlled current source;a second current source having a negative coefficient o

이 특허에 인용된 특허 (16)

  1. Winn Gregory Scott ; Richetta Raymond Alan, Circuit arrangement and method with temperature dependent signal swing.
  2. Oritani Atsushi (Yokohama JPX), Constant-current source circuit and differential amplifier using the same.
  3. Davies Robert B. (433 E. McKinley Tempe AZ 85281) Hayes Lloyd H. (1064 W. Meseto Ave. Mesa AZ 85210) Heminger David M. (1322 W. Ellis St. Mesa AZ 85201) Mietus David F. (3501 S. McClintock ; #1056 Te, Current source with adjustable temperature variation.
  4. Yasutake Nobuyuki (Tokyo JPX) Yabara Hidefumi (Yokohama JPX), Digital-to-analog converter having a circuit for compensating for variation in output dependent on temperature change.
  5. Paschal Matthew James, Dual current source circuit with temperature coefficients of equal and opposite magnitude.
  6. Nagano Katsumi (Tokyo JPX), Laser diode driving circuit.
  7. Barrow Jeffrey G. (Oak Ridge NC) Brokaw Adrian P. (Burlington MA), Method and apparatus for temperature compensating a digital to analog converter.
  8. Schaffer Gregory L. (Cupertino CA), Methods and apparatus for improving temperature drift of references.
  9. Koerner Christopher (Longmont CO) Gutierrez ; Jr. Alberto (Fort Collins CO) Pumphrey Edward G. (Colorado Springs CO), Programmable capacitance delay element having inverters controlled by adjustable voltage to offset temperature and volta.
  10. Hachiya Yoshiaki,JPX ; Yamanishi Yuji,JPX ; Mori Yoshihiro,JPX, Semiconductor device.
  11. Levinson Frank H. (Redwood City CA), Semiconductor laser diode controller and laser diode biasing control method.
  12. Ichimaru Kouzo (Kunisaki JPX), Temperature compensated constant-voltage circuit and temperature compensated constant-current circuit.
  13. Pace Gary L. (Boca Raton FL) Lenhart ; Jr. Brian P. (Boynton Beach FL), Temperature compensated current source.
  14. Barker Richard J.,GBX, Temperature sensing circuits.
  15. Gulczynski Zdzislaw (P.O. Box 441 Winchester MA 01890), Ultra fast digital-to-analog converter with independent bit current source calibration.
  16. Gilliland Patrick B. ; Goryachev Andy A., Vertical cavity surface emitting laser feedback system and method.

이 특허를 인용한 특허 (23)

  1. McLeod,Scott C.; Castellano,William, Accurate testing of temperature measurement unit.
  2. Chiu, Kwok-Fu, Adjustment of op amp offset voltage temperature coefficient.
  3. Dash,Ranjit Kumar, Apparatus and method for generating a temperature insensitive reference current.
  4. Zhang,Bin, Apparatus and method for generating an output signal that tracks the temperature coefficient of a light source.
  5. Zhenhua Wang CH, Bandgap voltage reference source.
  6. Gregory J. Smith, Circuit for generating a ramp signal between two temperature points of operation.
  7. Li, Yingxuan, Circuit, apparatus and method for improved current distribution of output drivers enabling improved calibration efficiency and accuracy.
  8. Li, Yingxuan, Circuit, apparatus and method for improved current distribution of output drivers enabling improved calibration efficiency and accuracy.
  9. Gheorghiu,Virgil ioan; Yang,Thomas, Compensated self-biasing current generator.
  10. Tokumaru, Michiko; Ikoma, Heiji, Current steering DAC.
  11. Chou,Kuo Yu, Digital-to-analog converter.
  12. Tabatabaei, Ali; Farjadrad, Ramin, Digital-to-analog converter (DAC) for high frequency and high resolution environments.
  13. Mays, II, Stephen D.; Dernovsek, John J.; Diaz-Tello, Michael; Srisan, Bobby, Driver circuit with a common interface for negative temperature coefficient resistor and bi-metallic strip temperature sensing.
  14. Eker, Mehmet M., Methods and apparatus for generating a supply-independent and temperature-stable bias current.
  15. Moon, Kyoung-ho; Lee, Seung-hoon; Park, Jong-bum; Yang, Hee-seuk, On-chip reference current and voltage generating circuits.
  16. Raz, Oded; Li, Teng, One plus one redundant optical interconnects with automated recovery from light source failure.
  17. Akihiro Nakahara JP, Over-current detecting circuit.
  18. Blom, Eric; Tsyrganovich, Anatoliy; Anderson, James, Programmable temperature compensated voltage generator.
  19. Holloway,Peter R.; Wan,Jun, Super-PTAT current source.
  20. Oliaei, Omid; Rector, Stephen J.; Benevento, Cristiano, System and method for reducing or eliminating temperature dependence of a coherent receiver in a wireless communication device.
  21. Nguyen, Darin Dung, Temperature compensation circuit.
  22. Oehm,J��rgen, Transistor arrangement with temperature compensation and method for temperature compensation.
  23. Paschal, Matthew James; Baumgartner, Steven John, Vertical cavity surface emitting laser (VCSEL) driver with low duty cycle distortion and digital modulation adjustment.
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