DK200975A - Effektforsterker for ultralav strom til drift af modtageren i et horeapparat - Google Patents

Effektforsterker for ultralav strom til drift af modtageren i et horeapparat

Info

Publication number
DK200975A
DK200975A DK200975A DK200975A DK200975A DK 200975 A DK200975 A DK 200975A DK 200975 A DK200975 A DK 200975A DK 200975 A DK200975 A DK 200975A DK 200975 A DK200975 A DK 200975A
Authority
DK
Denmark
Prior art keywords
ultral
receiver
hearing aid
power amplifier
low power
Prior art date
Application number
DK200975A
Other languages
Danish (da)
English (en)
Inventor
R E Marschinke
Original Assignee
Dahlberg Electronics
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 Dahlberg Electronics filed Critical Dahlberg Electronics
Publication of DK200975A publication Critical patent/DK200975A/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F3/3066—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output
    • H03F3/3067—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output with asymmetrical driving of the end stage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DK200975A 1974-05-09 1975-05-07 Effektforsterker for ultralav strom til drift af modtageren i et horeapparat DK200975A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46852574A 1974-05-09 1974-05-09

Publications (1)

Publication Number Publication Date
DK200975A true DK200975A (da) 1975-11-10

Family

ID=23860155

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200975A DK200975A (da) 1974-05-09 1975-05-07 Effektforsterker for ultralav strom til drift af modtageren i et horeapparat

Country Status (5)

Country Link
JP (1) JPS50151404A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH596728A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2517993A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK200975A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1475845A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200510A (ja) * 1983-04-26 1984-11-13 Citizen Watch Co Ltd 低消費電力増巾器

Also Published As

Publication number Publication date
DE2517993A1 (de) 1975-11-27
GB1475845A (en) 1977-06-10
CH596728A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-03-15
JPS50151404A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-12-05

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