JPS5541084A - Hearing aid - Google Patents

Hearing aid

Info

Publication number
JPS5541084A
JPS5541084A JP11559678A JP11559678A JPS5541084A JP S5541084 A JPS5541084 A JP S5541084A JP 11559678 A JP11559678 A JP 11559678A JP 11559678 A JP11559678 A JP 11559678A JP S5541084 A JPS5541084 A JP S5541084A
Authority
JP
Japan
Prior art keywords
hearing aid
pnp
fet
distortion
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11559678A
Other languages
Japanese (ja)
Inventor
Kenji Aoki
Hidetoshi Komatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP11559678A priority Critical patent/JPS5541084A/en
Publication of JPS5541084A publication Critical patent/JPS5541084A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To realize the hearing aid less in distortion and low in power consumption, by feeding back from the common collector of PNP and NPN bipolar transistors to C-MOS inverter. CONSTITUTION:The output of the C-MOS inverter 31 is connected to the gate of P and N channel MOSFET 32, and the drain of FET 32 is connected to the base of PNP and NPN bipolar transistors Tr33 and 34. Further, the resistor 37 is inserted between the drains of FET 32 and feedback is made via the resistor 36 from the common collector of Tr33 and 34 to the gate input terminal of the inverter 31. Thus, the hearing aid less in distortion and low in power consuption can be realized.
JP11559678A 1978-09-19 1978-09-19 Hearing aid Pending JPS5541084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11559678A JPS5541084A (en) 1978-09-19 1978-09-19 Hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11559678A JPS5541084A (en) 1978-09-19 1978-09-19 Hearing aid

Publications (1)

Publication Number Publication Date
JPS5541084A true JPS5541084A (en) 1980-03-22

Family

ID=14666519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11559678A Pending JPS5541084A (en) 1978-09-19 1978-09-19 Hearing aid

Country Status (1)

Country Link
JP (1) JPS5541084A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477840A (en) * 1981-04-06 1984-10-16 Licentia Patent-Verwaltungs-Gmbh Video recorder
JPS59207712A (en) * 1983-04-22 1984-11-24 シェイ　コミュニケーションズ　リミテッド Amplifier
US4897564A (en) * 1988-12-27 1990-01-30 International Business Machines Corp. BICMOS driver circuit for high density CMOS logic circuits
KR20030096847A (en) * 2002-06-18 2003-12-31 세기스타 주식회사 Circuit of pocket type hearing aid
EP1638205A1 (en) * 2004-09-16 2006-03-22 Deere & Company Driver circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477840A (en) * 1981-04-06 1984-10-16 Licentia Patent-Verwaltungs-Gmbh Video recorder
JPS59207712A (en) * 1983-04-22 1984-11-24 シェイ　コミュニケーションズ　リミテッド Amplifier
US4897564A (en) * 1988-12-27 1990-01-30 International Business Machines Corp. BICMOS driver circuit for high density CMOS logic circuits
KR20030096847A (en) * 2002-06-18 2003-12-31 세기스타 주식회사 Circuit of pocket type hearing aid
EP1638205A1 (en) * 2004-09-16 2006-03-22 Deere & Company Driver circuit

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