JPS55147711A - Power supply unit - Google Patents

Power supply unit

Info

Publication number
JPS55147711A
JPS55147711A JP5596779A JP5596779A JPS55147711A JP S55147711 A JPS55147711 A JP S55147711A JP 5596779 A JP5596779 A JP 5596779A JP 5596779 A JP5596779 A JP 5596779A JP S55147711 A JPS55147711 A JP S55147711A
Authority
JP
Japan
Prior art keywords
pulse
circuit
pulse width
switching circuit
switching
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
JP5596779A
Other languages
Japanese (ja)
Inventor
Kazuo Shimizu
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.)
RIKEN Institute of Physical and Chemical Research
Original Assignee
RIKEN Institute of Physical and Chemical Research
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 RIKEN Institute of Physical and Chemical Research filed Critical RIKEN Institute of Physical and Chemical Research
Priority to JP5596779A priority Critical patent/JPS55147711A/en
Publication of JPS55147711A publication Critical patent/JPS55147711A/en
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To obtain controllable DC, by switching the switching circuit with the pulse width signal proportional to the amplitude of the modulated input voltage controlled externally, and controlling the power application time of AC input in the wide variety from lower to higher frequency.
CONSTITUTION: The secondary voltage of the transformer 1 is filtered in the smooth circuit consisting of the inductance 3, capacitor 4, flywheel diode 5 via the full wave rectifying circuit 8 and switching circuit 12, and becomes the DC output voltage fed to the load 6. The pulse in synchronizing with the power supply 7 is made by using the reference pulse generating circuit 9 connected to the transformer 1, this pulse is taken as the clock pulse of the pulse width modulation circuit 10 to form the pulse width signal proportional to the amplitude of the modulated input voltage 11 controlled externally. Further, the switching circuit 12 is switched by this signal. Thus, the power application time of AC input over a wide variety from lower to higher frequencies is controlled to obtain controllable DC output.
COPYRIGHT: (C)1980,JPO&Japio
JP5596779A 1979-05-08 1979-05-08 Power supply unit Pending JPS55147711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5596779A JPS55147711A (en) 1979-05-08 1979-05-08 Power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5596779A JPS55147711A (en) 1979-05-08 1979-05-08 Power supply unit

Publications (1)

Publication Number Publication Date
JPS55147711A true JPS55147711A (en) 1980-11-17

Family

ID=13013835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5596779A Pending JPS55147711A (en) 1979-05-08 1979-05-08 Power supply unit

Country Status (1)

Country Link
JP (1) JPS55147711A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157555A (en) * 1983-02-28 1984-09-06 Matsushita Electric Ind Co Ltd Drying detector
US4749935A (en) * 1984-12-21 1988-06-07 Unipower International Pty. Ltd. Alternator and controlled rectifier for producing pulse width modulated DC output pulses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157555A (en) * 1983-02-28 1984-09-06 Matsushita Electric Ind Co Ltd Drying detector
JPH0461305B2 (en) * 1983-02-28 1992-09-30 Matsushita Electric Ind Co Ltd
US4749935A (en) * 1984-12-21 1988-06-07 Unipower International Pty. Ltd. Alternator and controlled rectifier for producing pulse width modulated DC output pulses

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