JPH0311330U - - Google Patents
Info
- Publication number
- JPH0311330U JPH0311330U JP7194789U JP7194789U JPH0311330U JP H0311330 U JPH0311330 U JP H0311330U JP 7194789 U JP7194789 U JP 7194789U JP 7194789 U JP7194789 U JP 7194789U JP H0311330 U JPH0311330 U JP H0311330U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- capacitor
- output
- power source
- protection circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案の一実施例の電気回路図、第２
図は先行技術の電気回路図である。
１１…伝送線路、１２…電子機器、１３…アン
テナ、１４…直流阻止用コンデンサ、１５…出力
端子、１６…直流電源、１７…電源スイツチ、１
８…電源保護回路、Ｑ１，Ｑ２…トランジスタ、
Ｒ１，Ｒ２，Ｒ３…抵抗、Ｌ１，Ｌ２…高周波電
流阻止用コイル、Ｃ１…コンデンサ。
Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure is a prior art electrical circuit diagram. DESCRIPTION OF SYMBOLS 11... Transmission line, 12... Electronic equipment, 13... Antenna, 14... DC blocking capacitor, 15... Output terminal, 16... DC power supply, 17... Power switch, 1
8...Power protection circuit, Q1, Q2...Transistor,
R1, R2, R3...Resistor, L1, L2...High frequency current blocking coil, C1...Capacitor.
Claims (1)
と、 電源に直列に介在され、コンデンサの出力電圧
によつて導通する第１スイツチング素子と、 第１スイツチング素子の出力に応答して第１ス
イツチング素子の導通状態を保持し、かつコンデ
ンサを放電させる第２スイツチング素子とを含む
ことを特徴とする電源保護回路。[Claims for Utility Model Registration] A capacitor that is charged by the output from a power source, a first switching element that is interposed in series with the power source and is made conductive by the output voltage of the capacitor, and a first switching element that is connected to the output of the first switching element. A power protection circuit comprising: a second switching element that responsively maintains the conduction state of the first switching element and discharges a capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7194789U JPH0311330U (en) | 1989-06-19 | 1989-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7194789U JPH0311330U (en) | 1989-06-19 | 1989-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0311330U true JPH0311330U (en) | 1991-02-04 |
Family
ID=31609439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7194789U Pending JPH0311330U (en) | 1989-06-19 | 1989-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311330U (en) |
-
1989
- 1989-06-19 JP JP7194789U patent/JPH0311330U/ja active Pending
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