GB1526655A - Dc converters - Google Patents
Dc convertersInfo
- Publication number
- GB1526655A GB1526655A GB2272077A GB2272077A GB1526655A GB 1526655 A GB1526655 A GB 1526655A GB 2272077 A GB2272077 A GB 2272077A GB 2272077 A GB2272077 A GB 2272077A GB 1526655 A GB1526655 A GB 1526655A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- voltage
- transistor
- cycle
- charged
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Networks Using Active Elements (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
1526655 Automatic voltage control SIEMENS AG 30 May 1977 [31 May 1976] 22720/77 Heading G3R [Also in Division H2] A step-up DC-DC converter includes a series capacitor C2 which is intermittently charged by an intermediate capacitor C1. In one half-cycle of a 20KHz pulse generator T, a transistor T2 is turned on so that the capacitor C1 is charged through a further transistor T3, a resistor R1, and a diode D1. In the following half-cycle, charge is transferred from capacitor C1 to capacitor C2 by turning on transistors T1, T4, T5. The output voltage is regulated to a maximum value by comparison with a Zener voltage ZD to produce an amplified control signal which adjusts the biasing voltage of the transistor T4. A similar circuit, Fig. 2 (not shown), may be used to provide a negative output voltage smaller in amplitude than the positive input voltage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762624408 DE2624408A1 (en) | 1976-05-31 | 1976-05-31 | TRANSFORMERLESS DC CONVERTER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1526655A true GB1526655A (en) | 1978-09-27 |
Family
ID=5979443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2272077A Expired GB1526655A (en) | 1976-05-31 | 1977-05-30 | Dc converters |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2624408A1 (en) |
| FR (1) | FR2353990A1 (en) |
| GB (1) | GB1526655A (en) |
| NL (1) | NL7705904A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982315A (en) * | 1990-03-19 | 1991-01-01 | Caterpillar Inc. | Voltage multiplier circuit |
-
1976
- 1976-05-31 DE DE19762624408 patent/DE2624408A1/en not_active Ceased
-
1977
- 1977-05-20 FR FR7715517A patent/FR2353990A1/en active Granted
- 1977-05-27 NL NL7705904A patent/NL7705904A/en not_active Application Discontinuation
- 1977-05-30 GB GB2272077A patent/GB1526655A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2353990A1 (en) | 1977-12-30 |
| DE2624408A1 (en) | 1977-12-08 |
| NL7705904A (en) | 1977-12-02 |
| FR2353990B1 (en) | 1981-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |