FR2344176A1 - Power supply using series transistors - has transistors connected between load and rectifying diodes coupled to AC transformers secondary tappings - Google Patents
Power supply using series transistors - has transistors connected between load and rectifying diodes coupled to AC transformers secondary tappingsInfo
- Publication number
- FR2344176A1 FR2344176A1 FR7707406A FR7707406A FR2344176A1 FR 2344176 A1 FR2344176 A1 FR 2344176A1 FR 7707406 A FR7707406 A FR 7707406A FR 7707406 A FR7707406 A FR 7707406A FR 2344176 A1 FR2344176 A1 FR 2344176A1
- Authority
- FR
- France
- Prior art keywords
- transistors
- load
- power supply
- series
- output voltage
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/62—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using bucking or boosting dc sources
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
- Amplifiers (AREA)
Abstract
The power supply consists of several transistors (Q1-Q5) each connected in series between the load and one tapping point on the ac transformer secondary via rectifier diodes and smoothing capacitors. The emitters of these transistors are connected together at one end of the load. The bases of the transistors are coupled separately via switches to biasing potentials that allow any one of them to be switched on whilst holding the other off. The output voltage therefore depends on which transistor is on. The bias voltage is made dependent on the output voltage for stabilisation. The advantage lies in producing a stable output voltage efficiently.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2735176A JPS52110454A (en) | 1976-03-12 | 1976-03-12 | Power controlling system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2344176A1 true FR2344176A1 (en) | 1977-10-07 |
FR2344176B1 FR2344176B1 (en) | 1981-10-23 |
Family
ID=12218607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707406A Granted FR2344176A1 (en) | 1976-03-12 | 1977-03-11 | Power supply using series transistors - has transistors connected between load and rectifying diodes coupled to AC transformers secondary tappings |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS52110454A (en) |
DE (1) | DE2710794A1 (en) |
FR (1) | FR2344176A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0151345A2 (en) * | 1983-12-16 | 1985-08-14 | Control Concepts Corporation | Power converter apparatus and method employing plural branches |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2823538C2 (en) * | 1978-05-30 | 1986-12-04 | Diehl GmbH & Co, 8500 Nürnberg | DC-AC voltage converter |
JPH061416B2 (en) * | 1986-02-26 | 1994-01-05 | 株式会社 アドバンテスト | Voltage generator |
US5610807A (en) * | 1994-10-14 | 1997-03-11 | Matsushita Electric Works, Ltd. | Power converting system with a plurality of charging capacitors |
JP4822941B2 (en) * | 2006-06-12 | 2011-11-24 | 株式会社東芝 | Power supply voltage control circuit and semiconductor integrated circuit |
JP4666010B2 (en) | 2008-06-12 | 2011-04-06 | セイコーエプソン株式会社 | Load drive circuit and inkjet printer |
-
1976
- 1976-03-12 JP JP2735176A patent/JPS52110454A/en active Granted
-
1977
- 1977-03-11 DE DE19772710794 patent/DE2710794A1/en active Pending
- 1977-03-11 FR FR7707406A patent/FR2344176A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0151345A2 (en) * | 1983-12-16 | 1985-08-14 | Control Concepts Corporation | Power converter apparatus and method employing plural branches |
EP0151345A3 (en) * | 1983-12-16 | 1985-11-21 | Control Concepts Corporation | Power converter apparatus and method employing plural branches |
US4628438A (en) * | 1983-12-16 | 1986-12-09 | Control Concepts Corporation | Power converter apparatus and method employing plural branches |
Also Published As
Publication number | Publication date |
---|---|
FR2344176B1 (en) | 1981-10-23 |
JPS5630569B2 (en) | 1981-07-15 |
DE2710794A1 (en) | 1977-09-22 |
JPS52110454A (en) | 1977-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |