JPS55127621A - Series constant-voltage circuit - Google Patents

Series constant-voltage circuit

Info

Publication number
JPS55127621A
JPS55127621A JP3747679A JP3747679A JPS55127621A JP S55127621 A JPS55127621 A JP S55127621A JP 3747679 A JP3747679 A JP 3747679A JP 3747679 A JP3747679 A JP 3747679A JP S55127621 A JPS55127621 A JP S55127621A
Authority
JP
Japan
Prior art keywords
voltage
series
transistor
control
rising
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
JP3747679A
Other languages
Japanese (ja)
Inventor
Masatoshi Kimura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3747679A priority Critical patent/JPS55127621A/en
Publication of JPS55127621A publication Critical patent/JPS55127621A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To increase the rising and falling speeds of an output voltage by turning off a series transistor while the 1st control transistor is OFF and then by putting the series transistor into normal operation with the 1st control transistor ON.
CONSTITUTION: In a series constant-voltage circuit which outputs a voltage rising and falling rapidly, a direct voltage rectified by rectifier 2 and smoothed by smoothing capacitor 3 is applied across load 9 through series transistor Tr4 being controlled to the 1st value by reference voltage element 5. Here, control Tr13 comes into operation when the rectified and smoothed direct voltage exceeds the 2nd value determined by reference voltage element 11. Then, control Tr16 is provided which turns Tr4 OFF with Tr13 OFF and ON with Tr13 ON. Consequently, the rising and falling speeds of the output voltage can be increased.
COPYRIGHT: (C)1980,JPO&Japio
JP3747679A 1979-03-26 1979-03-26 Series constant-voltage circuit Pending JPS55127621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3747679A JPS55127621A (en) 1979-03-26 1979-03-26 Series constant-voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3747679A JPS55127621A (en) 1979-03-26 1979-03-26 Series constant-voltage circuit

Publications (1)

Publication Number Publication Date
JPS55127621A true JPS55127621A (en) 1980-10-02

Family

ID=12498565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3747679A Pending JPS55127621A (en) 1979-03-26 1979-03-26 Series constant-voltage circuit

Country Status (1)

Country Link
JP (1) JPS55127621A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812026A (en) * 1981-07-15 1983-01-24 Fujitsu Denso Ltd Power supply circuit
US4816821A (en) * 1986-10-02 1989-03-28 U.S. Philips Corp. Clocked direct voltage converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823629U (en) * 1971-07-23 1973-03-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823629U (en) * 1971-07-23 1973-03-17

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812026A (en) * 1981-07-15 1983-01-24 Fujitsu Denso Ltd Power supply circuit
JPH0254577B2 (en) * 1981-07-15 1990-11-22 Fujitsu Denso
US4816821A (en) * 1986-10-02 1989-03-28 U.S. Philips Corp. Clocked direct voltage converter

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