JPH02125545U - - Google Patents
Info
- Publication number
- JPH02125545U JPH02125545U JP1180789U JP1180789U JPH02125545U JP H02125545 U JPH02125545 U JP H02125545U JP 1180789 U JP1180789 U JP 1180789U JP 1180789 U JP1180789 U JP 1180789U JP H02125545 U JPH02125545 U JP H02125545U
- Authority
- JP
- Japan
- Prior art keywords
- electronic circuit
- power supply
- circuit
- power
- detection means
- 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
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案の一実施例である電源回路１０
の簡略化した電気的接続を示す電気回路図、第２
図は電源スイツチ１４およびリレー１７のオン／
オフ状態および各電子回路１１，１２へ付勢され
る駆動電圧Ｖｃｃの電圧レベルを示すタイミング
チヤート、第３図は従来の電源回路１の簡略化し
た電気的接続を示す電気回路図、第４図は各ライ
ンｓｌ１〜ｓｌ４の電圧レベルを示すタイミング
チヤートである。
１０……電源回路、１１……第１電子回路、１
２……第２電子回路、１３……電源、１４……電
源スイツチ、１５……検出手段、１６……スイツ
チング手段、１７……リレー、１７ａ……リレー
コイル、１７ｂ……リレースイツチ、１８……基
準電圧発生手段、１９……比較回路、Ｑ……ｎｐ
ｎ形トランジスタ、ｓｌ５……第１ライン、ｓｌ
６……第２ライン、Ｖｃｃ……駆動電圧、Ｖｒｅ
ｆ……基準電圧。
FIG. 1 shows a power supply circuit 10 which is an embodiment of the present invention.
Electrical circuit diagram showing simplified electrical connections of
The figure shows power switch 14 and relay 17 on/off.
A timing chart showing the off state and the voltage level of the drive voltage Vcc energized to each electronic circuit 11, 12; FIG. 3 is an electric circuit diagram showing a simplified electrical connection of the conventional power supply circuit 1; FIG. is a timing chart showing the voltage level of each line sl1 to sl4. 10... Power supply circuit, 11... First electronic circuit, 1
2... Second electronic circuit, 13... Power source, 14... Power switch, 15... Detecting means, 16... Switching means, 17... Relay, 17a... Relay coil, 17b... Relay switch, 18... ...Reference voltage generation means, 19...Comparison circuit, Q...np
N-type transistor, sl5...first line, sl
6...Second line, Vcc...Driving voltage, Vre
f...Reference voltage.
Claims (1)
に協働する第２電子回路を動作させるための電子
回路の電源回路において、 電源と、 前記電源に直列に設けられ、前記第１電子回路
を電力付勢する電源スイツチと、 前記電源スイツチを介する電圧が第１電子回路
の動作に適した値になることを検出する検出手段
と、 前記検出手段の出力に応答して、前記電源から
の電力を、第２電子回路に供給するスイツチング
手段とを含むことを特徴とする電子回路の電源回
路。[Claims for Utility Model Registration] In a power supply circuit for an electronic circuit for operating a second electronic circuit that cooperates with the first electronic circuit after the operation of the first electronic circuit, the power supply circuit includes: a power supply; and a power supply circuit provided in series with the power supply. , a power switch for energizing the first electronic circuit; a detection means for detecting that the voltage across the power switch reaches a value suitable for operation of the first electronic circuit; and a detection means responsive to the output of the detection means. and switching means for supplying power from the power source to a second electronic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1180789U JPH02125545U (en) | 1989-02-02 | 1989-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1180789U JPH02125545U (en) | 1989-02-02 | 1989-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02125545U true JPH02125545U (en) | 1990-10-16 |
Family
ID=31515324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1180789U Pending JPH02125545U (en) | 1989-02-02 | 1989-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02125545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06335157A (en) * | 1993-05-24 | 1994-12-02 | Nec Corp | Protective circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS484008U (en) * | 1971-05-24 | 1973-01-18 |
-
1989
- 1989-02-02 JP JP1180789U patent/JPH02125545U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS484008U (en) * | 1971-05-24 | 1973-01-18 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06335157A (en) * | 1993-05-24 | 1994-12-02 | Nec Corp | Protective circuit |
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