JPS5642817A - High-frequency switching type direct current stabilized power supply unit - Google Patents
High-frequency switching type direct current stabilized power supply unitInfo
- Publication number
- JPS5642817A JPS5642817A JP11879179A JP11879179A JPS5642817A JP S5642817 A JPS5642817 A JP S5642817A JP 11879179 A JP11879179 A JP 11879179A JP 11879179 A JP11879179 A JP 11879179A JP S5642817 A JPS5642817 A JP S5642817A
- Authority
- JP
- Japan
- Prior art keywords
- control
- circuit
- time
- giving
- transistor
- 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
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To eliminate both the rectifying circuit and the smoothing circuit and thus realize a reduction of the power loss as well as an increase of the efficiency of conversion, by giving a time- division control to the working of the transistor at the chopper part by the control IC.
CONSTITUTION: The control IC10 turns on the transistor TR4 only for the time t1 decided based on the voltage obtained by giving a division to the output signal of the smoothing circuit 7 by the resistances 9 and 9' from the rise moment of the output-side rectangular wave B of the converting transformer 1. In the same way, the control IC10' turns on the transistor TR4' just for the time t2 decided based on the voltage at the joint between 9 and 9' from the rising moment of the rectangular wave C. Then the signal F having the stabilized DC voltage of the fixed level VO is obtained in the form of the output signal of the circuit 7 by giving a control of duration to the times t1 and t2 produced by the control ICs 10 and 10'. At the same time, both ICs 10 and 10' work in coupling with the rising moments of the waves B and C to prevent a simultaneous on of both the TR4 and 4', i.e. the mutual short circuit of the push-pull output terminals of the secondary winding of the transformer 1. In such way, the rectifying circuit and others can be eliminated to increase the efficiency of conversion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11879179A JPS5642817A (en) | 1979-09-18 | 1979-09-18 | High-frequency switching type direct current stabilized power supply unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11879179A JPS5642817A (en) | 1979-09-18 | 1979-09-18 | High-frequency switching type direct current stabilized power supply unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5642817A true JPS5642817A (en) | 1981-04-21 |
JPS626420B2 JPS626420B2 (en) | 1987-02-10 |
Family
ID=14745178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11879179A Granted JPS5642817A (en) | 1979-09-18 | 1979-09-18 | High-frequency switching type direct current stabilized power supply unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642817A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0197027U (en) * | 1987-12-22 | 1989-06-28 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5423929A (en) * | 1977-07-25 | 1979-02-22 | Shibaura Eng Works Ltd | Highhpower transistor chopper |
-
1979
- 1979-09-18 JP JP11879179A patent/JPS5642817A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5423929A (en) * | 1977-07-25 | 1979-02-22 | Shibaura Eng Works Ltd | Highhpower transistor chopper |
Also Published As
Publication number | Publication date |
---|---|
JPS626420B2 (en) | 1987-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES8401296A1 (en) | Switched-mode self-oscillating supply voltage circuit. | |
JPS57138868A (en) | Voltage resonance type high frequency switching circuit | |
JPS5642817A (en) | High-frequency switching type direct current stabilized power supply unit | |
GB1284630A (en) | Improvements in or relating to d.c. converter circuits | |
JPS5484425A (en) | Switching regulator | |
ES461152A1 (en) | Power supply | |
JPS5577372A (en) | Multi-output converter | |
FR2353991A1 (en) | Voltage converter for portable equipment - has inductor in series with pulsed transformer primary to act as load for control loop (NL 5.12.77) | |
JPS5464417A (en) | Generation circuit for high voltage | |
JPS55136721A (en) | Solidstate alternating current switch | |
JPS57115974A (en) | Welding machine | |
JPS5574379A (en) | Power converter | |
JPS5561276A (en) | Multi-output switching system direct current power source | |
JPS558239A (en) | Power supply circuit | |
SU639105A1 (en) | One-cycle dc voltage converter | |
JPS5787604A (en) | Power supply circuit for amplifier | |
JPS5653575A (en) | Dc/dc conversion circuit | |
JPS5694962A (en) | Transformerless type dc/dc converter | |
JPS5588571A (en) | Dc-dc converter | |
JPS561272A (en) | Direct current welding electric power source device | |
JPS5569822A (en) | Power unit | |
JPS54118532A (en) | Inverter | |
JPS54126922A (en) | Dc-dc converting circuit | |
JPS5699075A (en) | Direct-current arc welder | |
JPS559218A (en) | Power supply circuit |