JPS5831786U - DC voltage conversion circuit - Google Patents
DC voltage conversion circuitInfo
- Publication number
- JPS5831786U JPS5831786U JP12399081U JP12399081U JPS5831786U JP S5831786 U JPS5831786 U JP S5831786U JP 12399081 U JP12399081 U JP 12399081U JP 12399081 U JP12399081 U JP 12399081U JP S5831786 U JPS5831786 U JP S5831786U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- transformer
- conversion circuit
- voltage conversion
- 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.)
- Pending
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の直流電圧変換回路の電気回路図、第２図
は第１図における要部の信号波形図、第３図はこの考案
の一実施例における全体の構成を示す電気回路図である
。
１１・・・交流電源、１４・・・トランジスタ（第１の
スイッチング素子）、１Ｂ−・・ＬＣローパスフィルタ
、１９・・・スイッチングレギュレータ、２０・・・基
準電圧発生回路、２１・・・比較増幅回路、２２・・・
トランジスタ（第２のスイッチング素子）、２４・・・
コンデンサ、２５・・・トランス、２５１・・・１次コ
イル、２５゜・・・２次コイル、２８・・・負荷、２９
・・・共振回路。Figure 1 is an electric circuit diagram of a conventional DC voltage conversion circuit, Figure 2 is a signal waveform diagram of the main parts in Figure 1, and Figure 3 is an electric circuit diagram showing the overall configuration of an embodiment of this invention. be. DESCRIPTION OF SYMBOLS 11... AC power supply, 14... Transistor (first switching element), 1B-... LC low-pass filter, 19... Switching regulator, 20... Reference voltage generation circuit, 21... Comparison amplification Circuit, 22...
Transistor (second switching element), 24...
Capacitor, 25...Transformer, 251...Primary coil, 25°...Secondary coil, 28...Load, 29
...resonant circuit.
Claims (1)
を有しこの第１のスイッチング素子のオン時間に応じた
電圧を出力するスイッチングレギュレータと、このスイ
ッチングレギュレータの出力電圧が所定電圧であるか否
かに応じて前記第１のスイッチング素子をオン−オフ作
動せしめる手段と、トランスと、前記スイッチングレギ
ュレータとトランスの１次側との間に設けられ、所定周
波数の信号に同期してオン−オフ作動する第２のスイッ
チング素子と、この第２のスイッチング素子と並列に接
続されるコンデンサと、前記第２のスイッチング素子の
オン−オフ作動に応じて前記コンデンサとトランスの１
次側とで共振出力信号を発生する手段と、前記トランス
の２次側の出力を整流する手段とを具備したことを特徴
とする直流電圧変換回路。A power supply, a switching regulator connected to the power supply, having a first switching element and outputting a voltage according to the on time of the first switching element, and whether the output voltage of the switching regulator is a predetermined voltage. means for operating the first switching element on and off in accordance with the current state; a transformer; and a means for operating the first switching element on and off in synchronization with a signal of a predetermined frequency; a second switching element connected in parallel with the second switching element; and one of the capacitors and the transformer depending on the on-off operation of the second switching element.
A DC voltage conversion circuit comprising: means for generating a resonant output signal on the secondary side of the transformer; and means for rectifying the output of the secondary side of the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12399081U JPS5831786U (en) | 1981-08-21 | 1981-08-21 | DC voltage conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12399081U JPS5831786U (en) | 1981-08-21 | 1981-08-21 | DC voltage conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5831786U true JPS5831786U (en) | 1983-03-02 |
Family
ID=29917877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12399081U Pending JPS5831786U (en) | 1981-08-21 | 1981-08-21 | DC voltage conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831786U (en) |
-
1981
- 1981-08-21 JP JP12399081U patent/JPS5831786U/en active Pending
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