JPS58100436U - ripple filter - Google Patents
ripple filterInfo
- Publication number
- JPS58100436U JPS58100436U JP19297681U JP19297681U JPS58100436U JP S58100436 U JPS58100436 U JP S58100436U JP 19297681 U JP19297681 U JP 19297681U JP 19297681 U JP19297681 U JP 19297681U JP S58100436 U JPS58100436 U JP S58100436U
- Authority
- JP
- Japan
- Prior art keywords
- ripple filter
- transistor
- time constant
- turned
- 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.)
- Pending
Links
Landscapes
- Filters And Equalizers (AREA)
- Amplifiers (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図および第２図は従来のリップルフィルタの回路図
およびその作用の説明に供する図、第３図および第４図
は本考案の一実施例の回路図およびその作用の説明に供
する特性図である。
Ｑ工＋ Ｑ２およびＱ３・・・・・・トランジスタ、Ｃ
・・・・・・リップルフィルタ用のコンデンサ、Ｃ１・
・・・・・時定数、回路のコンデンサ、Ｒ１・・・・・
・時定数回路の抵抗、１・・・・・・整流回路。FIGS. 1 and 2 are circuit diagrams of a conventional ripple filter and diagrams for explaining its operation, and FIGS. 3 and 4 are circuit diagrams of an embodiment of the present invention and characteristic diagrams for explaining its operation. It is. Q engineering + Q2 and Q3...transistor, C
・・・・・・Ripple filter capacitor, C1・
...Time constant, circuit capacitor, R1...
・Resistance of time constant circuit, 1... Rectifier circuit.
Claims (1)
コンデンサが接続されたエミッタホロワを形成する第１
のトランジスタからなるリップルフィルタにおいて、前
記整流回路の出力電圧が印加される時定数回路と、前記
時定数回路の出力電圧により駆動される第２のトラン−
ジスタと、前記第１のトランジスタのエミッタと負荷と
の間に接続されかつ前記第２のトランジスタのオフ時に
オン駆動される第３のトランジスタとを備えてなること
を特徴とするリップルフィルタ。A first part forming an emitter follower with a collector connected to the output end of the rectifier circuit and a capacitor connected to the base.
In the ripple filter, the ripple filter includes a time constant circuit to which the output voltage of the rectifier circuit is applied, and a second transformer driven by the output voltage of the time constant circuit.
A ripple filter comprising: a transistor; and a third transistor connected between the emitter of the first transistor and a load and turned on when the second transistor is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19297681U JPS58100436U (en) | 1981-12-28 | 1981-12-28 | ripple filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19297681U JPS58100436U (en) | 1981-12-28 | 1981-12-28 | ripple filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58100436U true JPS58100436U (en) | 1983-07-08 |
Family
ID=30106354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19297681U Pending JPS58100436U (en) | 1981-12-28 | 1981-12-28 | ripple filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58100436U (en) |
-
1981
- 1981-12-28 JP JP19297681U patent/JPS58100436U/en active Pending
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