AU5054898A - Device for changing level of analog signal - Google Patents

Device for changing level of analog signal

Info

Publication number
AU5054898A
AU5054898A AU50548/98A AU5054898A AU5054898A AU 5054898 A AU5054898 A AU 5054898A AU 50548/98 A AU50548/98 A AU 50548/98A AU 5054898 A AU5054898 A AU 5054898A AU 5054898 A AU5054898 A AU 5054898A
Authority
AU
Australia
Prior art keywords
analog signal
changing level
changing
level
analog
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.)
Abandoned
Application number
AU50548/98A
Inventor
Martti Koskinen
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of AU5054898A publication Critical patent/AU5054898A/en
Abandoned 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
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AU50548/98A 1996-11-25 1997-11-24 Device for changing level of analog signal Abandoned AU5054898A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI964689A FI964689A (en) 1996-11-25 1996-11-25 Device for changing the analog signal level
FI964689 1996-11-25
PCT/FI1997/000715 WO1998024174A1 (en) 1996-11-25 1997-11-24 Device for changing level of analog signal

Publications (1)

Publication Number Publication Date
AU5054898A true AU5054898A (en) 1998-06-22

Family

ID=8547124

Family Applications (1)

Application Number Title Priority Date Filing Date
AU50548/98A Abandoned AU5054898A (en) 1996-11-25 1997-11-24 Device for changing level of analog signal

Country Status (4)

Country Link
EP (1) EP0940002A1 (en)
AU (1) AU5054898A (en)
FI (1) FI964689A (en)
WO (1) WO1998024174A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986498A (en) * 1998-04-14 1999-11-16 Harman International Industries, Incorporated Audio direct from power supply
US6392476B1 (en) 2000-03-14 2002-05-21 Harman International Industries, Incorporated System and method of producing direct audio from a power supply

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2728377A1 (en) * 1977-06-23 1979-01-11 Siemens Ag CIRCUIT ARRANGEMENT FOR THE CONVERSION OF ELECTRICAL ENERGY
SE426761B (en) * 1980-12-09 1983-02-07 Ellemtel Utvecklings Ab Pulse-width modulated voltage converter for converting a DC voltage to a low frequency and preferably sinusoidal AC voltage
US4479175A (en) * 1982-08-13 1984-10-23 Honeywell Inc. Phase modulated switchmode power amplifier and waveform generator
US4847742A (en) * 1987-02-12 1989-07-11 Hitachi Video Engineering, Inc. Multi-channel inverter circuit
IT1244799B (en) * 1990-10-19 1994-09-05 Italtel Spa DC-AC CONVERTER

Also Published As

Publication number Publication date
WO1998024174A1 (en) 1998-06-04
EP0940002A1 (en) 1999-09-08
FI964689A0 (en) 1996-11-25
FI964689A (en) 1998-05-26

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