JPS6412605A - Low distortion rate class bd amplifier - Google Patents

Low distortion rate class bd amplifier

Info

Publication number
JPS6412605A
JPS6412605A JP62166978A JP16697887A JPS6412605A JP S6412605 A JPS6412605 A JP S6412605A JP 62166978 A JP62166978 A JP 62166978A JP 16697887 A JP16697887 A JP 16697887A JP S6412605 A JPS6412605 A JP S6412605A
Authority
JP
Japan
Prior art keywords
circuit
signal
positive
voltage
amplifier
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
JP62166978A
Other languages
Japanese (ja)
Inventor
Masayoshi Mochimaru
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP62166978A priority Critical patent/JPS6412605A/en
Publication of JPS6412605A publication Critical patent/JPS6412605A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE:To obtain a high power efficiency without causing distortion by using a switching amplifier being the series connection of a flywheeling diode, a switch and a power supply so as to amplify each pulse width modulation signal, demodulating the signals into bipolar analog signals by two sets of LC filters and synthesizing both the signals. CONSTITUTION:A positive signal amplifier circuit 2 outputs a voltage being ten times the positive voltage of an input signal and a pulse signal is generated via a rectifier circuit 2A and a pulse width modulation circuit 2E. With the signal voltage at a low level, a MOSFET switch 2F in a switching amplifier 2I is closed and a current flows from a positive power supply 2G to an inductor in an LC filter 2J and electromagnetic energy is stored. When a pulse signal voltage reaches a high level, the switch 2F is opened, a current flows to the inductor is discharged into a synthesis circuit 3. Moreover, the circuit configura tion and its operation of a negative signal amplifier circuit 4 are similar to those of the positive signal amplifier circuit 2. Thus, the production of distortion is reduced and the power efficiency is improved.
JP62166978A 1987-07-06 1987-07-06 Low distortion rate class bd amplifier Pending JPS6412605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62166978A JPS6412605A (en) 1987-07-06 1987-07-06 Low distortion rate class bd amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62166978A JPS6412605A (en) 1987-07-06 1987-07-06 Low distortion rate class bd amplifier

Publications (1)

Publication Number Publication Date
JPS6412605A true JPS6412605A (en) 1989-01-17

Family

ID=15841134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62166978A Pending JPS6412605A (en) 1987-07-06 1987-07-06 Low distortion rate class bd amplifier

Country Status (1)

Country Link
JP (1) JPS6412605A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007174671A (en) * 2005-12-21 2007-07-05 Internatl Rectifier Corp Class-d amplifier with start-up click noise elimination
JP4856167B2 (en) * 2005-03-24 2012-01-18 ハイダック プロセス テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング Filter equipment and method of operating filter equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114407A (en) * 1980-02-13 1981-09-09 Matsushita Electric Ind Co Ltd Power amplifier
JPS56162515A (en) * 1980-05-20 1981-12-14 Sanyo Electric Co Ltd Power amplifying circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114407A (en) * 1980-02-13 1981-09-09 Matsushita Electric Ind Co Ltd Power amplifier
JPS56162515A (en) * 1980-05-20 1981-12-14 Sanyo Electric Co Ltd Power amplifying circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4856167B2 (en) * 2005-03-24 2012-01-18 ハイダック プロセス テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング Filter equipment and method of operating filter equipment
JP2007174671A (en) * 2005-12-21 2007-07-05 Internatl Rectifier Corp Class-d amplifier with start-up click noise elimination

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