JPS583609U - Shock noise prevention circuit - Google Patents
Shock noise prevention circuitInfo
- Publication number
- JPS583609U JPS583609U JP9574581U JP9574581U JPS583609U JP S583609 U JPS583609 U JP S583609U JP 9574581 U JP9574581 U JP 9574581U JP 9574581 U JP9574581 U JP 9574581U JP S583609 U JPS583609 U JP S583609U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- bias
- power switch
- voltage
- supplies
- 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.)
- Granted
Links
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
図は本考案のショック音防止回路図である。
１・・・前段増幅回路、２・・・フィルタ回路、３・・
・トランジスタ、４〜６・・・抵抗、７・・・コンデン
サー、８・・・定電圧回路、１１・・・第１電源スイツ
チ、１２・・・第２電源スイヅチ。The figure is a shock noise prevention circuit diagram of the present invention. 1... Pre-stage amplifier circuit, 2... Filter circuit, 3...
- Transistor, 4 to 6... Resistor, 7... Capacitor, 8... Constant voltage circuit, 11... First power switch, 12... Second power switch.
Claims (1)
イアス用の抵抗と、該バイアス用の抵抗にて制御される
トランジスタを備えるフィルタ回路と、前記バイアス回
路のみに電源電圧を供給する第１電源スイツチと、該第
１電源スイツチに連動され各回路及び前記バイ−アス回
路に電源電圧を供給する第２電源スイツチとよりなり、
各回路が不動作時には第１電源スイツチを介してバイア
ス回路に前記トランジスタをオンするに十分なパイ・
アス電圧を供給し、各回路が動作状態にされると
き、第２電源スイツチを介して供給される電源電圧をコ
ンデンサーにて徐々に変化させ定常状態ではトランジス
タを増幅器として作用させるに十分なバイアス電圧を前
記バイアス回路に供給することを特徴とするショック音
防止回路。a filter circuit including a bias resistor connected to the front stage amplifier circuit and having a capacitor; a filter circuit including a transistor controlled by the bias resistor; a first power switch that supplies a power supply voltage only to the bias circuit; a second power switch that is linked to the first power switch and supplies power voltage to each circuit and the bias circuit;
When each circuit is inactive, the bias circuit is supplied with sufficient voltage to turn on the transistor through the first power switch.
When each circuit is put into operation, the power supply voltage supplied via the second power switch is gradually changed by a capacitor, and the bias voltage is sufficient to cause the transistor to act as an amplifier in the steady state. A shock noise prevention circuit, characterized in that the circuit supplies the bias circuit with:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9574581U JPS583609U (en) | 1981-06-26 | 1981-06-26 | Shock noise prevention circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9574581U JPS583609U (en) | 1981-06-26 | 1981-06-26 | Shock noise prevention circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS583609U true JPS583609U (en) | 1983-01-11 |
| JPS6145622Y2 JPS6145622Y2 (en) | 1986-12-22 |
Family
ID=29890638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9574581U Granted JPS583609U (en) | 1981-06-26 | 1981-06-26 | Shock noise prevention circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS583609U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59183709U (en) * | 1983-05-24 | 1984-12-07 | 河村電器産業株式会社 | Safety device for electric drill |
| JPS6034712U (en) * | 1983-08-11 | 1985-03-09 | 浅野 幸悦 | Electrician drum with buried object obstruction prevention |
| JPS6281326U (en) * | 1985-11-11 | 1987-05-25 | ||
| JP3024770U (en) * | 1995-11-17 | 1996-05-31 | 神奈川蓄電池株式会社 | Coaxial cable and connection device for electric equipment |
-
1981
- 1981-06-26 JP JP9574581U patent/JPS583609U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59183709U (en) * | 1983-05-24 | 1984-12-07 | 河村電器産業株式会社 | Safety device for electric drill |
| JPS6237602Y2 (en) * | 1983-05-24 | 1987-09-25 | ||
| JPS6034712U (en) * | 1983-08-11 | 1985-03-09 | 浅野 幸悦 | Electrician drum with buried object obstruction prevention |
| JPS6281326U (en) * | 1985-11-11 | 1987-05-25 | ||
| JP3024770U (en) * | 1995-11-17 | 1996-05-31 | 神奈川蓄電池株式会社 | Coaxial cable and connection device for electric equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6145622Y2 (en) | 1986-12-22 |
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