JPH0314830U - - Google Patents
Info
- Publication number
- JPH0314830U JPH0314830U JP7592389U JP7592389U JPH0314830U JP H0314830 U JPH0314830 U JP H0314830U JP 7592389 U JP7592389 U JP 7592389U JP 7592389 U JP7592389 U JP 7592389U JP H0314830 U JPH0314830 U JP H0314830U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- transistor
- base
- circuit
- negative 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
- 238000010586 diagram Methods 0.000 description 1
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- Electronic Switches (AREA)
Description
第１図は本考案の一実施例の電気回路図、第２
図は従来回路の電気回路である。
Ｑ１……正電圧用スイツチングトランジスタ、
Ｑ２……負電圧用スイツチングトランジスタ、Ｑ
３……駆動用トランジスタ、Ｃ……制御端子。
Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure shows a conventional electrical circuit. Q1...Positive voltage switching transistor,
Q2...Negative voltage switching transistor, Q
3...Drive transistor, C...Control terminal.
Claims (1)
れ介挿接続された正電圧用スイツチングトランジ
スタと負電圧用スイツチングトランジスタとを同
時にスイツチングさせて正電圧と負電圧との供給
を制御する電源スイツチング回路において、前記
両スイツチングトランジスタの一方をＰＮＰ型と
し且つ他方をＮＰＮ型とし、駆動用トランジスタ
を、前記ＰＮＰ型スイツチングトラジスタのベー
スから前記ＮＰＮ型スイツチングトランジスタの
ベースに電流が流れる向きに該両スイチツングト
ランジスタの各ベース間に接続し、前記駆動用ト
ランジスタのベースを制御端子に接続して該制御
端子の制御信号により前記駆動用トラジスタをオ
ン・オフするよう構成したことを特徴とする電源
スイツチング回路。 In a power switching circuit that controls the supply of positive voltage and negative voltage by simultaneously switching a positive voltage switching transistor and a negative voltage switching transistor that are respectively inserted and connected to a positive voltage supply circuit and a negative voltage supply circuit. , one of the switching transistors is of PNP type and the other is of NPN type, and the driving transistor is arranged in the direction in which current flows from the base of the PNP type switching transistor to the base of the NPN type switching transistor. A power supply switching device connected between bases of switching transistors, connecting the base of the driving transistor to a control terminal, and turning on and off the driving transistor by a control signal from the control terminal. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7592389U JPH0314830U (en) | 1989-06-28 | 1989-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7592389U JPH0314830U (en) | 1989-06-28 | 1989-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314830U true JPH0314830U (en) | 1991-02-14 |
Family
ID=31616928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7592389U Pending JPH0314830U (en) | 1989-06-28 | 1989-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314830U (en) |
-
1989
- 1989-06-28 JP JP7592389U patent/JPH0314830U/ja active Pending