JPS54121951A - Ac-dc power circuit - Google Patents
Ac-dc power circuitInfo
- Publication number
- JPS54121951A JPS54121951A JP2939978A JP2939978A JPS54121951A JP S54121951 A JPS54121951 A JP S54121951A JP 2939978 A JP2939978 A JP 2939978A JP 2939978 A JP2939978 A JP 2939978A JP S54121951 A JPS54121951 A JP S54121951A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- load
- error detection
- detection amplifying
- 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.)
- Granted
Links
Landscapes
- Power Conversion In General (AREA)
- Television Receiver Circuits (AREA)
- Details Of Television Scanning (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To simplify the regulation of output voltage by the combinational use of error detection amplifying circuit.
CONSTITUTION: The AC-DC power circuit is provided with the rectifier smoothing circuit Cl by which to rectify and smoothen the voltage of the AC power source AC, the series regulator Q1 by which to control DC voltage obtained at the circuit Cl to a predetermined constant voltage and then to supply it to load, the DC-DC converter Q2 to Q5 by which to change DC power voltage DC into AC, then to convert it into predetermined DC voltage, and to supply it to load, and the error detection amplifying circuit Q6 by which to restore to predetermined value the output voltage of the series regulator or DC-DC converter which are connected to the output side of the converters Q2 to Q5 and the output side of the rectifier smoothing circuit and by which the error of DC voltage supplied to load is detected and operating state is restored. Thus, the combinational use of the error detection amplifying circuit is made possible and therefore the regulation of the variable resistor R8 for regulating the output voltage can be made be only one time, curtailing the number of regulating operations.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2939978A JPS54121951A (en) | 1978-03-15 | 1978-03-15 | Ac-dc power circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2939978A JPS54121951A (en) | 1978-03-15 | 1978-03-15 | Ac-dc power circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54121951A true JPS54121951A (en) | 1979-09-21 |
JPS6135564B2 JPS6135564B2 (en) | 1986-08-13 |
Family
ID=12275054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2939978A Granted JPS54121951A (en) | 1978-03-15 | 1978-03-15 | Ac-dc power circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121951A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166215U (en) * | 1981-04-07 | 1982-10-20 | ||
JPS6032491A (en) * | 1983-08-01 | 1985-02-19 | Matsushita Electric Ind Co Ltd | Power source circuit of television receiver |
JPS6261130U (en) * | 1985-10-04 | 1987-04-16 |
-
1978
- 1978-03-15 JP JP2939978A patent/JPS54121951A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166215U (en) * | 1981-04-07 | 1982-10-20 | ||
JPH0330893Y2 (en) * | 1981-04-07 | 1991-06-28 | ||
JPS6032491A (en) * | 1983-08-01 | 1985-02-19 | Matsushita Electric Ind Co Ltd | Power source circuit of television receiver |
JPH0149236B2 (en) * | 1983-08-01 | 1989-10-24 | Matsushita Electric Ind Co Ltd | |
JPS6261130U (en) * | 1985-10-04 | 1987-04-16 |
Also Published As
Publication number | Publication date |
---|---|
JPS6135564B2 (en) | 1986-08-13 |
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