JPS60109120U - Semiconductor switching output circuit device - Google Patents
Semiconductor switching output circuit deviceInfo
- Publication number
- JPS60109120U JPS60109120U JP20462283U JP20462283U JPS60109120U JP S60109120 U JPS60109120 U JP S60109120U JP 20462283 U JP20462283 U JP 20462283U JP 20462283 U JP20462283 U JP 20462283U JP S60109120 U JPS60109120 U JP S60109120U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- voltage
- reference voltage
- semiconductor switching
- 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
- Dc-Dc Converters (AREA)
- Electronic Switches (AREA)
- Continuous-Control Power Sources That Use Transistors (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図は従来の半導体スイッチング出力回路装置の構成
を示すブロック回路図、第２図は上記半導体スイッチン
グ出力回路装置の定電流負荷に寄生する寄生素子を説明
するためのブロック回路図、第３図は従来の寄生素子の
動作防止方法を説明するためのＰＮＰ型トランジスタの
断面図、第４図はこの考案に係る半導体スイッチング出
力回路装置の一実施例を示すブロック回路図である。
１［・・・第１の基準電圧発生回路、１２・・・第１の
電圧フォロワ回路、１３・・−・定電流負荷回路、１４
・・・スイッチ回路、１５・・・入力端子、１６・・・
出力端子、１７・・・第２の基準電圧発生回路、１８・
・・第２ −゛の電圧フォロワ回路。FIG. 1 is a block circuit diagram showing the configuration of a conventional semiconductor switching output circuit device, FIG. 2 is a block circuit diagram illustrating parasitic elements parasitic to the constant current load of the semiconductor switching output circuit device, and FIG. 3 4 is a cross-sectional view of a PNP transistor for explaining a conventional method for preventing the operation of parasitic elements, and FIG. 4 is a block circuit diagram showing an embodiment of a semiconductor switching output circuit device according to this invention. 1[...first reference voltage generation circuit, 12...first voltage follower circuit, 13...constant current load circuit, 14
...Switch circuit, 15...Input terminal, 16...
Output terminal, 17... second reference voltage generation circuit, 18.
...Second -゛voltage follower circuit.
Claims (1)
路の出力電圧が供給されることにより動作状態となる第
１の電圧フォロワ回路と、前記第１の基準電圧発生回路
をスイッチング駆動信号に対応して出力状態及び非出力
状態に設定するスイッチング制御回路と、前記第１の電
圧フォロワ回路の出力電流が一定になるように制御する
定電流負荷回路とを有する半導体スイッチング出力回路
装置において、前記第１の基準電圧発生回路の出力電圧
より低い電圧を発生する第２の基準電圧発生回路と、こ
の第２の基準電圧発生回路の出力電圧により駆動される
もので前記第１の電圧フォロワ回路が動作状態のとき非
動作状態となり前記第１の電圧フォロワ回路が非動作状
態となるとき動作状態となって前記定電流負荷回路に電
流を流す第２の電圧フォロワ回路とを具備してなること
を特徴とする半導体スイッチング出力回路装置。A first reference voltage generation circuit, a first voltage follower circuit that becomes operational by being supplied with the output voltage of the first reference voltage generation circuit, and a switching drive signal for the first reference voltage generation circuit. A semiconductor switching output circuit device comprising a switching control circuit that sets an output state and a non-output state in accordance with the above, and a constant current load circuit that controls the output current of the first voltage follower circuit to be constant, a second reference voltage generation circuit that generates a voltage lower than the output voltage of the first reference voltage generation circuit; and the first voltage follower circuit that is driven by the output voltage of the second reference voltage generation circuit. and a second voltage follower circuit that is in an inactive state when the voltage follower circuit is in an active state and becomes an active state when the first voltage follower circuit is in an inactive state and causes current to flow through the constant current load circuit. A semiconductor switching output circuit device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20462283U JPS60109120U (en) | 1983-12-24 | 1983-12-24 | Semiconductor switching output circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20462283U JPS60109120U (en) | 1983-12-24 | 1983-12-24 | Semiconductor switching output circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60109120U true JPS60109120U (en) | 1985-07-24 |
Family
ID=30767015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20462283U Pending JPS60109120U (en) | 1983-12-24 | 1983-12-24 | Semiconductor switching output circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60109120U (en) |
-
1983
- 1983-12-24 JP JP20462283U patent/JPS60109120U/en active Pending
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