GB1391902A - Ac-dc-ac-dc converter circuit - Google Patents
Ac-dc-ac-dc converter circuitInfo
- Publication number
- GB1391902A GB1391902A GB797171A GB797171A GB1391902A GB 1391902 A GB1391902 A GB 1391902A GB 797171 A GB797171 A GB 797171A GB 797171 A GB797171 A GB 797171A GB 1391902 A GB1391902 A GB 1391902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- transistors
- pulses
- frequency
- rectified
- 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.)
- Expired
Links
Classifications
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
1391902 Converting COUTANT ELECTRONICS Ltd 24 March 1972 [26 March 1971] 7971/71 Heading H2F [Also in Division G3] In an A.C./D.C./A.C./D.C. converter, the A.C. mains is rectified at BR and fed to an inverter comprising transistors VT1, VT2, output transformer T and capacitors Cl and C2, connected as shown, the output from transformer T being rectified by diodes D so as to produce the required D.C. output. The transistors VT1, VT2 are switched by control pulses of constant width so that the output voltage may be varied by varying the repetition rate of the pulses. The pulse frequency may be of the order of 20 kHz. The output may be compared with a reference (such as a Zener diode) and the error voltage arranged to operate a voltageto-frequency converter VTF which determines the frequency of the controlled pulses from the gating circuit GT. The transistors may be saturated so that the output is a square wave.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB797171A GB1391902A (en) | 1971-03-26 | 1971-03-26 | Ac-dc-ac-dc converter circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB797171A GB1391902A (en) | 1971-03-26 | 1971-03-26 | Ac-dc-ac-dc converter circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1391902A true GB1391902A (en) | 1975-04-23 |
Family
ID=9843299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB797171A Expired GB1391902A (en) | 1971-03-26 | 1971-03-26 | Ac-dc-ac-dc converter circuit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1391902A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245285A (en) * | 1979-08-31 | 1981-01-13 | Burroughs Corporation | Booster-inverter power supply circuit |
US4257089A (en) * | 1979-09-13 | 1981-03-17 | The United States Of America As Represented By The Secretary Of The Army | Regulated variable frequency DC/DC converter |
EP0107003A1 (en) * | 1982-09-30 | 1984-05-02 | General Electric Company | High frequency parallel resonant DC-DC converter |
US4525774A (en) * | 1981-11-24 | 1985-06-25 | Hitachi, Ltd. | Regulated AC-DC converter having saturation inductance in resonant circuit |
-
1971
- 1971-03-26 GB GB797171A patent/GB1391902A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245285A (en) * | 1979-08-31 | 1981-01-13 | Burroughs Corporation | Booster-inverter power supply circuit |
US4257089A (en) * | 1979-09-13 | 1981-03-17 | The United States Of America As Represented By The Secretary Of The Army | Regulated variable frequency DC/DC converter |
US4525774A (en) * | 1981-11-24 | 1985-06-25 | Hitachi, Ltd. | Regulated AC-DC converter having saturation inductance in resonant circuit |
EP0107003A1 (en) * | 1982-09-30 | 1984-05-02 | General Electric Company | High frequency parallel resonant DC-DC converter |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |