JPS59135037U - Power switching circuit - Google Patents
Power switching circuitInfo
- Publication number
- JPS59135037U JPS59135037U JP2944083U JP2944083U JPS59135037U JP S59135037 U JPS59135037 U JP S59135037U JP 2944083 U JP2944083 U JP 2944083U JP 2944083 U JP2944083 U JP 2944083U JP S59135037 U JPS59135037 U JP S59135037U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- transistor
- switching circuit
- power switching
- emitter
- 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
- Supply And Distribution Of Alternating Current (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Electronic Switches (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図は従来回路の一例の回路図、第２図及び第３図は
夫々本考案回路の第１及び第２実施例の回路図である。
１・・・電子装置（負荷）、４ａ、４ｂ・・・電源、Ｑ
ａ・・・ＰＮＰ形トランジスタ、Ｑｂ・・・ＮＰＮ形）
ランジスタ、Ｓ・・・電源切換スイッチ、Ｒａ□、 Ｒ
ａ２． Ｒｂ工。
Ｒｂ２・・・抵抗。FIG. 1 is a circuit diagram of an example of a conventional circuit, and FIGS. 2 and 3 are circuit diagrams of first and second embodiments of the circuit of the present invention, respectively. 1...Electronic device (load), 4a, 4b...Power supply, Q
a...PNP type transistor, Qb...NPN type)
Ransistor, S...power selector switch, Ra□, R
a2. Rb engineering. Rb2...Resistance.
Claims (1)
スタのコレクタ、エミッタを接続してそのベース・エミ
ッタ間に抵抗を接続する一方、該電源端子の電位と異な
る電位の電源端子と該負荷の他方の電源供給端子との間
に該トランジスタと異極性のトランジスタのコレクタ、
エミッタヲ接続してそのベース・エミッタ間に別の抵抗
を接続し、かつ、上記２個のトランジスタの夫々のベー
スを電源切換用スイッチを介して接続してなる電源切換
回路。The collector and emitter of a transistor are connected between the power supply terminal and one of the power supply terminals of the load, and a resistor is connected between the base and emitter of the transistor. a collector of a transistor of a different polarity from the transistor between the other power supply terminal;
A power supply switching circuit in which the emitters are connected, another resistor is connected between the base and the emitter, and the bases of the two transistors are connected via a power supply switching switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2944083U JPS59135037U (en) | 1983-02-28 | 1983-02-28 | Power switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2944083U JPS59135037U (en) | 1983-02-28 | 1983-02-28 | Power switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59135037U true JPS59135037U (en) | 1984-09-10 |
Family
ID=30160301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2944083U Pending JPS59135037U (en) | 1983-02-28 | 1983-02-28 | Power switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59135037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6217240U (en) * | 1985-07-15 | 1987-02-02 |
-
1983
- 1983-02-28 JP JP2944083U patent/JPS59135037U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6217240U (en) * | 1985-07-15 | 1987-02-02 |
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