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Method and apparatus for performing lossless sensing and negative inductor currents in a high side switch

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G05F-001/613
  • G05F-001/10
출원번호 US-0207937 (2005-08-22)
등록번호 US-7282894 (2007-10-16)
발명자 / 주소
  • Oswald,Richard K.
  • Yamamoto,Tamotsu
  • Ryu,Takashi
출원인 / 주소
  • Matsushita Electric Industrial Co., Ltd.
대리인 / 주소
    McDermott Will & Emery LLP
인용정보 피인용 횟수 : 8  인용 특허 : 35

초록

A current sensing circuit for use in a switching regulator having a high-side switch. The current sensing circuit includes a first sensing circuit coupled to the high-side switch for measuring current flowing in a positive direction through the high-side switch. The first sensing circuit includes a

대표청구항

What is claimed is: 1. A current sensing circuit for use in a switching regulator having a high-side switch, said current sensing circuit comprising: a first sensing circuit coupled to said high-side switch for measuring current flowing in a positive direction through said high-side switch, said fi

이 특허에 인용된 특허 (35)

  1. Severinsky Alex J. (Silver Spring MD), AC to DC power converter and method with integrated line current control for improving power factor.
  2. Esteves, Joey Martin; Flatness, Randy Guy, Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators.
  3. Korsunsky Roman, Battery protection circuit employing active regulation of charge and discharge devices.
  4. Liebler, Jerome E., Buck regulator with ability to handle rapid reduction of load current.
  5. Edwards, Karl, Cancellation of slope compensation effect on current limit.
  6. Karl Edwards, Cancellation of slope compensation effect on current limit.
  7. Hastings Roy A. ; Hassoun Marwan M. ; Gibson Neil ; Corsi Marco, Capacitive-summing switch-mode power conversion control.
  8. Christopher B. Umminger ; Randy G. Flatness, Circuits and methods for synchronizing non-constant frequency switching regulators with a phase locked loop.
  9. Dubhashi, Ajit; Tam, David C., Controlling high side devices without using level shift switches.
  10. Taghizadeh-Kaschani Karim-Thomas,DEX, Current mode switching regulator configured such that a measuring resistor is not needed to measure the current at an inductor.
  11. Forge Charles O. (Los Altos CA), Current mode switching regulator with programmed offtime.
  12. Takahashi Seiichi,JPX ; Ohashi Yasuo,JPX ; Nishi Koji,JPX, Current-mode control device and switching power supply employing same.
  13. Walters Michael M. ; Hawkes Charles E., DC-to-DC converter with inductor current sensing and related methods.
  14. Saggini, Stefano; Ghioni, Massimo; Geraci, Angelo; Villa, Francesco, Digital contoller for DC-DC switching converters.
  15. Maier Reinhard,DEX ; Zierhut ; deceased Hermann,DEXITX by Ingeborg Zierhut ; heir ; Mitlehner Heinz,DEX, Electronic switch for use with inductive loads.
  16. Huljak Robert J. (Nicholasville KY) Newton Stephen F. (Winchester KY) Wallace Kenneth A. (Lexington KY), FET power converter with reduced switching loss.
  17. Nayebi Mehrdad ; Eskiyerli Murat Hayri ; Shapiro Phil, Fast high side switch for hard disk drive preamplifiers.
  18. Midya Pallab, High efficiency power amplifier using combined linear and switching techniques with novel feedback system.
  19. Schenkel Jeffrey, High efficiency step-down switching regulators.
  20. Garde, Peter, High-efficiency low-distortion amplifier.
  21. Rossetti Nazzareno ; Sanders Seth, Lossless current sensing in buck converters working with low duty cycles and high clock frequencies.
  22. Feldtkeller, Martin, Method for driving a switch in a switch-mode converter, and a drive circuit for driving a switch.
  23. Corva, Giulio; Mariani, Adalberto, Method of regulating the supply voltage of a load and related voltage regulator.
  24. Salerno,David C.; Jordan,Mark G., Methods and circuits for programmable automatic burst mode control using average output current.
  25. Schultz Charles P. (Lincoln MA), Power converter having optimal dynamic operation.
  26. Choi Nak-Choon,KRX ; Seo Maeng-Ho,KRX, Power factor correction circuit having an error signal multiplied by a current signal.
  27. Isham, Robert Haynes, Programmable current-sensing circuit providing continuous temperature compensation for DC-DC Converter.
  28. Dittmer, Bernd; Gronbach, Roman, Step-down constant-current transformer.
  29. Raymond J. Grover GB; Franciscus ACM Schoofs NL; Pieter G. Blanken NL, Switch circuit and semiconductor switch, for battery-powered equipment.
  30. Hastings Roy A. (Allen TX) Corsi Marco (Dallas TX) Johnston William C. (Garland TX), Switch mode power converter and method.
  31. Bonte Anthony K. (Campbell CA) Nelson Carl T. (San Jose CA), Switching regulator circuit using magnetic flux-sensing.
  32. Dobkin Robert C. ; Wilcox Milton E., Switching regulators having a synchronizable oscillator frequency with constant ramp amplitude.
  33. Philip R. Cooke ; Richard Redl CH, Switching voltage regulator with dual modulation control scheme.
  34. Dwelley David M., Voltage mode feedback burst mode circuit.
  35. Corva, Giulio; Mariani, Adalberto, Voltage regulator.

이 특허를 인용한 특허 (8)

  1. Qin, Song, Apparatus and methods for bidirectional current sensing in a switching regulator.
  2. Qin, Song, Current sensing of switching power regulators.
  3. Deval, Philippe; Gimmel, Philippe; Budaes, Marius; Leonescu, Daniel; Cleveland, Terry; Dearborn, Scott, Effective current sensing for high voltage switching regulators.
  4. Mathe, Lennart Karl-Axel; Rutkowski, Joseph D; Shi, Song S, Reverse current prevention.
  5. Tournatory, David Christian Gerard; Kahn, Seth, Sensing and feedback in a current mode control voltage regulator.
  6. Kahn, Seth, Sensing and feedback with enhanced stability in a current mode control voltage regulator.
  7. Mehas, Gustavo James; Jain, Naveen; Vivrekar, Jayant; Houston, Michael Jason, Switching regulator circuit, system, and method for providing input current measurement without a dedicated input current sense element.
  8. Tanabe, Hirohisa, Windowless H-bridge buck-boost switching converter.
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