JPS57173204A - Power supplying circuit for amplifying element - Google Patents

Power supplying circuit for amplifying element

Info

Publication number
JPS57173204A
JPS57173204A JP56058762A JP5876281A JPS57173204A JP S57173204 A JPS57173204 A JP S57173204A JP 56058762 A JP56058762 A JP 56058762A JP 5876281 A JP5876281 A JP 5876281A JP S57173204 A JPS57173204 A JP S57173204A
Authority
JP
Japan
Prior art keywords
power
switching elements
capacitors
voltages
output
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
JP56058762A
Other languages
Japanese (ja)
Inventor
Susumu Sueyoshi
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP56058762A priority Critical patent/JPS57173204A/en
Publication of JPS57173204A publication Critical patent/JPS57173204A/en
Pending legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

PURPOSE: To reduce size and to increase output power while improving power efficiency by switching power voltages in accordance with an output level.
CONSTITUTION: Switching elements 3 and 3' are provided between power sources +VCC and -VCC, and the collectors of transistors (TR) Q1 and Q1' as power supply terminals. Series circuits of capacitors C1 and C1' and charging resistance R1 and R1' are provided with the switching elements 3 and 3', and an each point. During the conduction periods of the switching elements 3 and 3', a power voltage VCC is applied to the collectors of the TRs Q1 and Q1 and the capacitors C1 and C1' are charged. Level comparators 4 and 4' compare the charging output voltages of the capacitors C1 and C1' with the levels of voltages v0+Es and vo- Es' shifted in level from a circuit output v0, and on the basis of their comparison outputs, the switching elements 3 and 3' are turned on and off.
COPYRIGHT: (C)1982,JPO&Japio
JP56058762A 1981-04-18 1981-04-18 Power supplying circuit for amplifying element Pending JPS57173204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058762A JPS57173204A (en) 1981-04-18 1981-04-18 Power supplying circuit for amplifying element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058762A JPS57173204A (en) 1981-04-18 1981-04-18 Power supplying circuit for amplifying element

Publications (1)

Publication Number Publication Date
JPS57173204A true JPS57173204A (en) 1982-10-25

Family

ID=13093548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058762A Pending JPS57173204A (en) 1981-04-18 1981-04-18 Power supplying circuit for amplifying element

Country Status (1)

Country Link
JP (1) JPS57173204A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045550A (en) * 1973-08-25 1975-04-23
JPS5394162A (en) * 1977-01-28 1978-08-17 Hitachi Ltd Power amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045550A (en) * 1973-08-25 1975-04-23
JPS5394162A (en) * 1977-01-28 1978-08-17 Hitachi Ltd Power amplifier

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