JPH0433116U - - Google Patents
Info
- Publication number
- JPH0433116U JPH0433116U JP7482790U JP7482790U JPH0433116U JP H0433116 U JPH0433116 U JP H0433116U JP 7482790 U JP7482790 U JP 7482790U JP 7482790 U JP7482790 U JP 7482790U JP H0433116 U JPH0433116 U JP H0433116U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- voltage
- output
- circuit
- relay
- 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 description 3
- 238000004804 winding Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Electrical Variables (AREA)
Description
図は本考案の一実施例を示す電源装置の2次回
路を保護する自動電圧制御回路図である。
1は電源トランス2の1次側入力端子2d,2
eを切り換える複数接点出力のリレー、3は2次
整流回路、5,6は電圧検出用抵抗、7は検出電
圧Vdと基準電圧VRefとを比較出力するコン
パレータ、8はリレー1のコイル1bに電流を供
給する駆動回路である。
The figure is an automatic voltage control circuit diagram for protecting the secondary circuit of a power supply device showing an embodiment of the present invention. 1 is the primary side input terminal 2d, 2 of the power transformer 2
3 is a secondary rectifier circuit, 5 and 6 are voltage detection resistors, 7 is a comparator that compares and outputs the detection voltage V d and the reference voltage VR ef , 8 is the coil 1b of relay 1. This is a drive circuit that supplies current to the
Claims (1)
力中間タツプを有する電源トランスの同中間タツ
プの切換手段と、同電源トランス2次側回路の検
出電圧による同切換手段の駆動回路とからなる自
動電圧制御を特徴とする電源装置。 (2) 商用電源を複数の接点出力端子を有するリ
レー等の入力端子に接続し、同リレーの接点出力
端子それぞれを1次側巻き上げタツプを有する電
源トランスの1次巻線入力端子と同巻き上げタツ
プの入力端子とに接続し、同電源トランスの2次
巻線出力を2次整流回路を介して3端子レギユレ
ータ回路等に接続すると共に、同2次整流回路出
力の電圧検出用抵抗分割電圧と基準電圧とをそれ
ぞれコンパレータの非反転入力端子と反転入力端
子とに接続し、同コンパレータ出力を駆動回路を
介して前記リレーのコイル入力端子に接続してな
る請求項(1)記載の電源装置。[Claims for Utility Model Registration] (1) In electrical and electronic equipment, etc., means for switching the intermediate tap of a power transformer having an input intermediate tap on the primary side, and switching the same by a detected voltage of the secondary side circuit of the power transformer. A power supply device characterized by automatic voltage control consisting of a drive circuit of means. (2) Connect a commercial power source to the input terminal of a relay, etc. that has multiple contact output terminals, and connect each contact output terminal of the relay to the primary winding input terminal of a power transformer that has a primary winding tap. The secondary winding output of the power supply transformer is connected to the 3-terminal regulator circuit, etc. via the secondary rectifier circuit, and the resistor-divided voltage for voltage detection of the output of the secondary rectifier circuit and the reference voltage are connected to the input terminal of the power transformer. 2. The power supply device according to claim 1, wherein the voltage is connected to a non-inverting input terminal and an inverting input terminal of a comparator, respectively, and the output of the comparator is connected to a coil input terminal of the relay via a drive circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7482790U JPH0433116U (en) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7482790U JPH0433116U (en) | 1990-07-13 | 1990-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0433116U true JPH0433116U (en) | 1992-03-18 |
Family
ID=31614863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7482790U Pending JPH0433116U (en) | 1990-07-13 | 1990-07-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0433116U (en) |
-
1990
- 1990-07-13 JP JP7482790U patent/JPH0433116U/ja active Pending
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