JPS5583910A - Power unit - Google Patents

Power unit

Info

Publication number
JPS5583910A
JPS5583910A JP15973678A JP15973678A JPS5583910A JP S5583910 A JPS5583910 A JP S5583910A JP 15973678 A JP15973678 A JP 15973678A JP 15973678 A JP15973678 A JP 15973678A JP S5583910 A JPS5583910 A JP S5583910A
Authority
JP
Japan
Prior art keywords
voltage
power
power source
circuit
boosted
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
JP15973678A
Other languages
Japanese (ja)
Inventor
Takushi Mochida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15973678A priority Critical patent/JPS5583910A/en
Publication of JPS5583910A publication Critical patent/JPS5583910A/en
Pending legal-status Critical Current

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  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To lower the usuable tail voltage for the DC power source by securing the function as the stabilizing power circuit for the DC power source at the operating time via the AC power source and the securing saturation for the serial control transistor at the reduction time of the DC power voltage.
CONSTITUTION: Automatic switching circuit 24 switches the voltage which is boosted via the power voltage obtained through load 15 by means of the control voltage obtined through the reactifier circuit, and then applies the boosted voltage to power circuit 23 only when the DC power source is used. With application of the boosted voltage, the serial control transistor within power circuit 23 is saturated at the reduction time of the power voltage. Thus the usable tail voltage can be set low for the DC power source.
COPYRIGHT: (C)1980,JPO&Japio
JP15973678A 1978-12-20 1978-12-20 Power unit Pending JPS5583910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15973678A JPS5583910A (en) 1978-12-20 1978-12-20 Power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15973678A JPS5583910A (en) 1978-12-20 1978-12-20 Power unit

Publications (1)

Publication Number Publication Date
JPS5583910A true JPS5583910A (en) 1980-06-24

Family

ID=15700140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15973678A Pending JPS5583910A (en) 1978-12-20 1978-12-20 Power unit

Country Status (1)

Country Link
JP (1) JPS5583910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057816U (en) * 1983-09-26 1985-04-22 日本マランツ株式会社 Reference voltage supply circuit for D/A converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057816U (en) * 1983-09-26 1985-04-22 日本マランツ株式会社 Reference voltage supply circuit for D/A converter

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