JPS6481661A - Constant-voltage power circuit - Google Patents
Constant-voltage power circuitInfo
- Publication number
- JPS6481661A JPS6481661A JP23761587A JP23761587A JPS6481661A JP S6481661 A JPS6481661 A JP S6481661A JP 23761587 A JP23761587 A JP 23761587A JP 23761587 A JP23761587 A JP 23761587A JP S6481661 A JPS6481661 A JP S6481661A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- transformer
- counter
- directed
- power
- 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.)
- Pending
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To reduce switching noise voltage and contrive the voltage to be accommodated to the constant-voltage power circuit of a common audio and video device, by composing two high-frequency suppressing coils at a smoothing section so that mutual leakage flux may be counter-directed to each other. CONSTITUTION:To the base of a switching transistor(Tr) 22 connected to the primary side of a transformer 20 in series, the switching signal of previously set frequency is fed, and the Tr 22 is interrupted, and on the secondary side of the transformer 20, high-frequency rectangular-power is generated. Of the Tr 22 and the transformer 20, a converting section 23 is composed. The high-frequency rectangular-power induced on the secondary side of the transformer 20 is rectified by a rectifying section 25 consisting of diodes 24a, 24b, and is smoothed by a smoothing section 27 consisting of high-frequency suppressing coils 26a, 26b and a capacitor 28, and is set to be the DC power of a desired value. The high-frequency suppressing coils 26a, 26b are coiled so that respectively generated magnetic flux may be counter-directed to each other. Accordingly, mutually generated leakage flux is counter-directed to each other and is cancelled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23761587A JPS6481661A (en) | 1987-09-22 | 1987-09-22 | Constant-voltage power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23761587A JPS6481661A (en) | 1987-09-22 | 1987-09-22 | Constant-voltage power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6481661A true JPS6481661A (en) | 1989-03-27 |
Family
ID=17017943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23761587A Pending JPS6481661A (en) | 1987-09-22 | 1987-09-22 | Constant-voltage power circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6481661A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162785U (en) * | 1988-04-27 | 1989-11-13 | ||
| WO2015025579A1 (en) * | 2013-08-23 | 2015-02-26 | 日立オートモティブシステムズ株式会社 | Power conversion device |
| JP2018068851A (en) * | 2016-11-02 | 2018-05-10 | コニカミノルタ株式会社 | Ultrasound diagnostic device |
| WO2020026640A1 (en) * | 2018-07-30 | 2020-02-06 | 住友電気工業株式会社 | Inductor, composite inductor, dc/dc converter, and circuit |
| WO2020026641A1 (en) * | 2018-07-30 | 2020-02-06 | 住友電気工業株式会社 | Inductor, composite inductor, dc/dc converter, and circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117732B1 (en) * | 1971-04-13 | 1976-06-04 |
-
1987
- 1987-09-22 JP JP23761587A patent/JPS6481661A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117732B1 (en) * | 1971-04-13 | 1976-06-04 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162785U (en) * | 1988-04-27 | 1989-11-13 | ||
| WO2015025579A1 (en) * | 2013-08-23 | 2015-02-26 | 日立オートモティブシステムズ株式会社 | Power conversion device |
| US9847730B2 (en) | 2013-08-23 | 2017-12-19 | Hitachi Automotive Systems, Ltd. | Power converter |
| JP2018068851A (en) * | 2016-11-02 | 2018-05-10 | コニカミノルタ株式会社 | Ultrasound diagnostic device |
| WO2020026640A1 (en) * | 2018-07-30 | 2020-02-06 | 住友電気工業株式会社 | Inductor, composite inductor, dc/dc converter, and circuit |
| WO2020026641A1 (en) * | 2018-07-30 | 2020-02-06 | 住友電気工業株式会社 | Inductor, composite inductor, dc/dc converter, and circuit |
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