JPS54136619A - Dc voltage stabilized power unit - Google Patents

Dc voltage stabilized power unit

Info

Publication number
JPS54136619A
JPS54136619A JP4427678A JP4427678A JPS54136619A JP S54136619 A JPS54136619 A JP S54136619A JP 4427678 A JP4427678 A JP 4427678A JP 4427678 A JP4427678 A JP 4427678A JP S54136619 A JPS54136619 A JP S54136619A
Authority
JP
Japan
Prior art keywords
voltage
limit voltage
power unit
stabilized power
circuit
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
JP4427678A
Other languages
Japanese (ja)
Inventor
Takeo Shigemori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4427678A priority Critical patent/JPS54136619A/en
Publication of JPS54136619A publication Critical patent/JPS54136619A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To protect switching element and transistor in switching circuit by setting up limiter voltage by providing limiter circuit.
CONSTITUTION: The limit voltage Vd is set up by providing a limiting circuit made up of the resistor 13, the resistor 14, and the diode 15. Thus, the diode is electrified and thus the limit voltage Vd is put in the input terminal of the comparison amplifier 17 in case where the output voltage Ve of the error voltage amplifier 9 becomes lower than the limit voltage Vd. Accordingly, the max. pulse width of driving signal supplied to the switching circuit 3 is determined by the limit voltage Vd, and therefore the switching element and the transistor 19 can be protected by selecting the voltage value.
COPYRIGHT: (C)1979,JPO&Japio
JP4427678A 1978-04-17 1978-04-17 Dc voltage stabilized power unit Pending JPS54136619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4427678A JPS54136619A (en) 1978-04-17 1978-04-17 Dc voltage stabilized power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4427678A JPS54136619A (en) 1978-04-17 1978-04-17 Dc voltage stabilized power unit

Publications (1)

Publication Number Publication Date
JPS54136619A true JPS54136619A (en) 1979-10-23

Family

ID=12686977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4427678A Pending JPS54136619A (en) 1978-04-17 1978-04-17 Dc voltage stabilized power unit

Country Status (1)

Country Link
JP (1) JPS54136619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123365A (en) * 1982-01-14 1983-07-22 Canon Inc High voltage power source
JPS62182817A (en) * 1986-02-06 1987-08-11 Canon Inc Integrated circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123365A (en) * 1982-01-14 1983-07-22 Canon Inc High voltage power source
JPH0527340B2 (en) * 1982-01-14 1993-04-20 Canon Kk
JPS62182817A (en) * 1986-02-06 1987-08-11 Canon Inc Integrated circuit

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