JPS55147711A - Power supply unit - Google Patents
Power supply unitInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1979
- 1979-05-08 JP JP5596779A patent/JPS55147711A/en active Pending
Cited By (3)
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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