JPH0386613U - - Google Patents
Info
- Publication number
- JPH0386613U JPH0386613U JP14762389U JP14762389U JPH0386613U JP H0386613 U JPH0386613 U JP H0386613U JP 14762389 U JP14762389 U JP 14762389U JP 14762389 U JP14762389 U JP 14762389U JP H0386613 U JPH0386613 U JP H0386613U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching device
- protection circuit
- automatic
- values
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案に係る電源の自動切り換え装置
の保護回路の一実施例を示す構成図、第２図はそ
の動作を説明するための特性曲線図、第３図は本
考案の他の実施例を示す構成図、第４図及び第５
図は電源の自動切り換え装置を説明する為の図で
ある。
１……電源の自動切り換え装置、２０，３３…
…第１の電源、２１，３４……第２の電源、２２
，３５……第３の電源、２３〜２５，２９……分
圧器、２６〜２８……コンパレータ、３０……リ
レードライバ、３１……リレーコイル、３２……
リレー接点。
Fig. 1 is a block diagram showing one embodiment of the protection circuit of the automatic power supply switching device according to the present invention, Fig. 2 is a characteristic curve diagram for explaining its operation, and Fig. 3 is another embodiment of the present invention. Configuration diagrams showing examples, Figures 4 and 5
The figure is a diagram for explaining an automatic power supply switching device. 1... automatic power switching device, 20, 33...
...First power supply, 21, 34...Second power supply, 22
, 35...Third power supply, 23-25, 29...Voltage divider, 26-28...Comparator, 30...Relay driver, 31...Relay coil, 32...
relay contact.
Claims (1)
の大きさによつて切り換える電源の自動切り換え
装置に用いる保護回路であつて、 前記複数の電源の出力電圧が規定値になつてい
るかを検出する複数のコンパレータと、この複数
のコンパレータの全てが規定値であることを検出
した時に導通するリレーとを有し、 このリレーを介して前記複数の電源を前記電源
の自動切り換え装置に入力するようにしたことを
特徴とする電源の自動切り換え装置の保護回路。 (2) 電圧値の異なる複数の電源をその出力電流
の大きさによつて切り換える電源の自動切り換え
装置に用いる保護回路であつて、 前記複数の電源として過電流保護回路を有する
電源を使用し、各電源間に電圧が高い方がカソー
ドになるようにダイオードを挿入するようにした
ことを特徴とする電源の自動切り換え装置の保護
回路。[Claims for Utility Model Registration] (1) A protection circuit used in an automatic switching device for power supplies that switches between multiple power supplies with different voltage values depending on the magnitude of their output currents, wherein the output voltage of the plurality of power supplies is It has a plurality of comparators that detect whether the values are at the specified values, and a relay that becomes conductive when all of the comparators detect that the values are at the specified values, and the plurality of power sources are connected to the power source via the relays. A protection circuit for an automatic power supply switching device, characterized in that the power supply is input to an automatic switching device. (2) A protection circuit for use in an automatic power supply switching device that switches between multiple power supplies with different voltage values depending on the magnitude of their output current, wherein a power supply having an overcurrent protection circuit is used as the plurality of power supplies, A protection circuit for an automatic power supply switching device, characterized in that a diode is inserted between each power supply so that the one with higher voltage becomes the cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14762389U JP2516178Y2 (en) | 1989-12-21 | 1989-12-21 | Automatic power switching device protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14762389U JP2516178Y2 (en) | 1989-12-21 | 1989-12-21 | Automatic power switching device protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386613U true JPH0386613U (en) | 1991-09-02 |
| JP2516178Y2 JP2516178Y2 (en) | 1996-11-06 |
Family
ID=31694129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14762389U Expired - Lifetime JP2516178Y2 (en) | 1989-12-21 | 1989-12-21 | Automatic power switching device protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516178Y2 (en) |
-
1989
- 1989-12-21 JP JP14762389U patent/JP2516178Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2516178Y2 (en) | 1996-11-06 |
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