JPH0314988U - - Google Patents
Info
- Publication number
- JPH0314988U JPH0314988U JP7388189U JP7388189U JPH0314988U JP H0314988 U JPH0314988 U JP H0314988U JP 7388189 U JP7388189 U JP 7388189U JP 7388189 U JP7388189 U JP 7388189U JP H0314988 U JPH0314988 U JP H0314988U
- Authority
- JP
- Japan
- Prior art keywords
- switch element
- voltage
- relay
- power supply
- rectification
- 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 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Description
第１図は本考案の第１の実施例を示す電源回路
図、第２図は同第２の実施例を示す電源回路図で
ある。
図中、１……商用電源、２……リレー、３……
トランス、４……整流回路、５……電圧検出回路
、６……スイツチ素子（ホトカプラ）、７……駆
動コイル、８……トランジスタ、９……安定化電
源、１０……リセツト回路、１１……コンパレー
タ、Ｃ１，Ｃ２……平滑コンデンサ、Ｄ１，Ｄ４
，Ｄ５……ダイオード、Ｄ２……発光ダイオード
、Ｄ３……ツエナーダイオード、Ｒ１〜Ｒ８……
抵抗、Ｖｃｃ……直流電圧。
FIG. 1 is a power supply circuit diagram showing a first embodiment of the present invention, and FIG. 2 is a power supply circuit diagram showing a second embodiment of the invention. In the diagram, 1...commercial power supply, 2...relay, 3...
Transformer, 4... Rectifier circuit, 5... Voltage detection circuit, 6... Switch element (photocoupler), 7... Drive coil, 8... Transistor, 9... Stabilized power supply, 10... Reset circuit, 11... ...Comparator, C1, C2...Smoothing capacitor, D1, D4
, D5...diode, D2... light emitting diode, D3... Zener diode, R1-R8...
Resistance, Vcc...DC voltage.
Claims (1)
たトランスと、二次側整流後の電圧レベルを検出
する電圧検出回路と、前記電圧レベルが所定の値
を越えたとき前記電圧検出回路の出力電圧により
作動するスイツチ素子と、同スイツチ素子の動作
に伴い前記トランスの切り換えタツプを切り換え
るリレーと、同リレーの動作と共に作動し、前記
整流後の電圧を前記スイツチ素子に供給して、同
スイツチ素子をオン状態に保持するトランジスタ
とから成ることを特徴とする電源回路。 (2) 一次側の入力電圧が切り換えタツプＨに印
加され、前記二次側整流後の電圧レベルが所定の
値以下のとき、前記スイツチ素子をオン状態に保
持している前記トランジスタよりの電流の流れを
変え、同スイツチ素子を動作停止ならしめるリセ
ツト回路を設けて成る請求項１記載の電源回路。 (3) 前記スイツチ素子の動作開始と共に作動す
る表示装置を前記リレーの駆動コイルの両端間に
結合せしめて成る請求項１記載の電源回路。[Claims for Utility Model Registration] (1) A transformer equipped with an input voltage switching tap on the primary side, a voltage detection circuit that detects the voltage level after rectification on the secondary side, and a voltage detection circuit that detects the voltage level after rectification on the secondary side, and a switch element that is activated by the output voltage of the voltage detection circuit; a relay that switches the switching tab of the transformer in accordance with the operation of the switch element; and a relay that operates together with the operation of the relay to transfer the rectified voltage to the switch element 1. A power supply circuit comprising: a transistor that supplies power to a switch element and maintains the switch element in an on state. (2) When the input voltage on the primary side is applied to the switching tap H and the voltage level after rectification on the secondary side is below a predetermined value, the current from the transistor keeping the switch element in the on state is 2. The power supply circuit according to claim 1, further comprising a reset circuit for changing the flow and stopping the operation of said switch element. (3) The power supply circuit according to claim 1, further comprising a display device which is activated when the switch element starts operating, and is connected between both ends of the drive coil of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7388189U JPH0314988U (en) | 1989-06-23 | 1989-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7388189U JPH0314988U (en) | 1989-06-23 | 1989-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314988U true JPH0314988U (en) | 1991-02-14 |
Family
ID=31613081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7388189U Pending JPH0314988U (en) | 1989-06-23 | 1989-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005052633A (en) * | 2003-07-23 | 2005-03-03 | Daisan Co Ltd | Coupling device for frame member of frame body |
-
1989
- 1989-06-23 JP JP7388189U patent/JPH0314988U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005052633A (en) * | 2003-07-23 | 2005-03-03 | Daisan Co Ltd | Coupling device for frame member of frame body |
| JP4669667B2 (en) * | 2003-07-23 | 2011-04-13 | 株式会社ダイサン | Device for connecting frame member of frame |
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