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Single supply operational amplifier and charge pump device 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03F-003/04
출원번호 US-0067404 (1993-05-25)
발명자 / 주소
  • Nodar Joseph (Dallas TX) Neale Todd M. (Carrollton TX) Johnson Douglas R. (Cedar Rapids IA)
출원인 / 주소
  • Texas Instruments Incorporated (Dallas TX 02)
인용정보 피인용 횟수 : 68  인용 특허 : 0

초록

An integrated circuit device (10) has an operational amplifier (12) and a charge pump (14) for creating a negative voltage level -Vcc. The operational amplifier (12) preferably has various sub-components. In particular, a bias generator (36) is included and connected to a neutral voltage level (31)

대표청구항

An operation amplifier comprising: a bias generator operable to couple to a neutral voltage level providing current bias said neutral voltage level being between a positive voltage level and a negative level, said bias generator being isolated from the negative voltage level; an input stage coupled

이 특허를 인용한 특허 (68)

  1. Richard,Patrick E.; Pennock,John L., Amplifier.
  2. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  3. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  4. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  5. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  6. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  7. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  8. Lesso, John P.; Pennock, John L.; Frith, Peter J., Amplifier circuit and methods of operation thereof.
  9. Lesso, John Paul; Pennock, John Laurence; Frith, Peter John, Amplifier circuit and methods of operation thereof.
  10. Bell David B. ; Eager Dale R., Amplifier having output range that exceeds supply voltage.
  11. Nabicht, Joseph T., Amplifier system with dynamically-adjusted supply voltage.
  12. Kishii, Tatsuya; Tsuchiya, Hirotoshi; Nakamura, Masayoshi; Miyazaki, Masato; Himeno, Akihisa, Amplifying device.
  13. Reisiger, Mark, Apparatus and methods for amplifier power supply control.
  14. Lesso, John P.; Pennock, John L.; Frith, Peter J., Audio amplifier circuit and electronic apparatus including the same.
  15. Chen, Hung-I; Hsu, Yen-Hsun; Wen, Sung-Han; Tang, Wei-Cheng, Audio out unit.
  16. Lesso, John P., Charge pump circuit and methods of operation thereof.
  17. Lesso, John P., Charge pump circuit and methods of operation thereof.
  18. Lesso, John P., Charge pump circuit and methods of operation thereof.
  19. Lesso, John P.; Pennock, John L.; Frith, Peter J., Charge pump circuit and methods of operation thereof.
  20. Lesso, John P.; Pennock, John L.; Frith, Peter J., Charge pump circuit and methods of operation thereof.
  21. Lesso, John P., Charge pump circuit and methods of operations thereof.
  22. Pelliconi,Roberto, Charge pump system.
  23. Proebsting, Robert J., Concurrent memory bank access and refresh request queuing.
  24. Proesbsting, Robert, Concurrent memory bank access and refresh retirement.
  25. Michael Arthur Grimm ; Ramaprabhu Srinivasan, Current limiting using capacitor charge measurement.
  26. Englekirk, Robert Mark, Differential charge pump.
  27. Ersoy, Selcuk; van Veldhoven, Robert Hendrikus Margaretha, Differential dynamic charge pump circuit.
  28. Wang, Tze-Chien, Driver amplifier circuit having reduced DC bias.
  29. Hou, Chun chih, Dual supply amplifier.
  30. Fonderie, Maarten Jeroen, Efficient power regulation for class-E amplifiers.
  31. Tucker, John Christopher; Allen, Daniel John; Melanson, John L.; Prasad, Ammisetti, Energy-efficient consumer device audio power output stage.
  32. Tucker, John Christopher; Allen, Daniel John; Melanson, John L.; Prasad, Ammisetti, Energy-efficient consumer device audio power output stage.
  33. Tucker, John Christopher; Allen, Daniel John; Melanson, John L.; Prasad, Ammisetti, Energy-efficient consumer device audio power output stage with gain control.
  34. Robert J. Proebsting, GENERATING A TAIL CURRENT FOR A DIFFERENTIAL TRANSISTOR PAIR USING A CAPACITIVE DEVICE TO PROJECT A CURRENT FLOWING THROUGH A CURRENT SOURCE DEVICE ONTO A NODE HAVING A DIFFERENT VOLTAGE THAN THE CUR.
  35. Doy, Tony, Headphone driver/charge pump combination.
  36. Wang, Rui; Lin, Jinyan; Zhao, Huijie; Lang, Yunping, High power-supply rejection ratio amplifying circuit.
  37. Swonger, James W., High voltage ring pump with inverter stages and voltage boosting stages.
  38. Swonger, James W., High voltage ring pump with inverter stages and voltage boosting stages.
  39. Meir Shashoua IL, High-efficiency audio power amplifier.
  40. Shashoua, Meir, High-efficiency power supply.
  41. Proebsting, Robert J, Integrated circuit random access memory capable of automatic internal refresh of memory array.
  42. Doy,Tony, Integrated direct drive inductor means enabled headphone amplifier.
  43. Burgener, Mark L.; Kelly, Dylan J.; Cable, James S., Low noise charge pump method and apparatus.
  44. Burgener, Mark L.; Kelly, Dylan J.; Cable, James S., Low noise charge pump method and apparatus.
  45. Burgener, Mark L.; Kelly, Dylan; Cable, James S., Low noise charge pump method and apparatus.
  46. Kim, Tae Youn; Englekirk, Robert Mark; Kelly, Dylan J., Low-noise high efficiency bias generation circuits and method.
  47. Kim, Tae Youn; Englekirk, Robert Mark; Kelly, Dylan J., Low-noise high efficiency bias generation circuits and method.
  48. Melanson, John L.; Tucker, John Christopher, Method and apparatus for controlling a selectable voltage audio power output stage.
  49. Baldwin,David J.; Garg,Mayank, Methods and apparatus to detect impedance at an amplifier output.
  50. Blyth Trevor ; Simko Richard T., Non-volatile electrically alterable semiconductor memory for analog and digital storage.
  51. Woodford, Scott Allan; Allen, Daniel John; Swanson, Eric J., Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit.
  52. Chen, Fu-Yuan; Hsieh, Chung-An; Yu, Yueh-Ping, Power supply device for driving an amplifier.
  53. Chen, Fu-Yuan; Hsieh, Chung-An; Yu, Yueh-Ping, Power supply device for driving an amplifier.
  54. Chen,Fu Yuan; Hsieh,Chung An; Yu,Yueh Ping, Power supply device for driving an amplifier.
  55. Zhang, Lingli; Shen, Dan; Gaboriau, Johann; Swanson, Eric J., Pulse-width modulated (PWM) audio power amplifier having output signal magnitude controlled pulse voltage and switching frequency.
  56. Proebsting, Robert J., Refresh request queuing circuitry.
  57. Proebsting, Robert J., Refresh request queuing circuitry.
  58. Huynh, Thong Anthony, Reverse current limit protection for active clamp converters.
  59. Azuhata, Satoshi; Yamamoto, Makoto, Semiconductor integrated circuit.
  60. Woodford, Scott Allan; Allen, Daniel John, Signal level selected efficiency in a charge pump power supply for a consumer device audio power output stage.
  61. Matsuoka, Daisuke, Signal output circuit.
  62. Doy, Tony; Koo, Ronald, Single supply direct drive amplifier.
  63. Doy,Tony; Koo,Ronald, Single supply direct drive amplifier.
  64. Doy, Tony, Single supply headphone driver/charge pump combination.
  65. Doy,Tony, Single supply headphone driver/charge pump combination.
  66. Englekirk, Robert Mark, Variable frequency charge pump.
  67. Hsieh, Chung An; Li, Cheng Tao, Voltage generating apparatus and methods.
  68. Chen, Hsu-Min; Lin, Tzu-An, Voltage generating apparatus for headphone.
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