JPS62187316U - - Google Patents
Info
- Publication number
- JPS62187316U JPS62187316U JP7573086U JP7573086U JPS62187316U JP S62187316 U JPS62187316 U JP S62187316U JP 7573086 U JP7573086 U JP 7573086U JP 7573086 U JP7573086 U JP 7573086U JP S62187316 U JPS62187316 U JP S62187316U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- coil
- transformer
- energized
- zener diode
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は実施例を示す回路図、第２図は従来の
装置を示す回路図である。
１……トランス、２……直流リレー、２Ａ……
コイル、３……交流入力端子、４……ダイオード
ブリツヂ、５……第１のツエナーダイオード、６
……第１のトランジスタ、７……電流検出用の抵
抗、８……第２のツエナーダイオード、９……コ
ンデンサ、１０……抵抗、１１……第２のトラン
ジスタ。
FIG. 1 is a circuit diagram showing an embodiment, and FIG. 2 is a circuit diagram showing a conventional device. 1...Transformer, 2...DC relay, 2A...
Coil, 3... AC input terminal, 4... Diode bridge, 5... First Zener diode, 6
...First transistor, 7...Resistor for current detection, 8...Second Zener diode, 9...Capacitor, 10...Resistor, 11...Second transistor.
Claims (1)
励磁時には低圧側に切換える直流リレーと、 交流入力端子に接続され前記直流リレーのコイ
ルに直流電流を供給するダイオードブリツヂと、 前記ダイオードブリツヂの出力と前記直流リレ
ーのコイルとの間に挿入され直列に接続された第
１のツエナーダイオード、第１のトランジスタ及
び抵抗と、 前記抵抗の両端の電圧に従い前記第１のトラン
ジスタを通電又は遮断状態とするスイツチング回
路と、 前記直流リレーのコイルに並列に接続された第
２のツエナーダイオード及び平滑用のコンデンサ
と、 を備えることを特徴とする電源装置。[Claims for Utility Model Registration] A transformer having two high-bottom taps, a DC relay that switches the taps of the transformer to a high voltage side when energized and to a low voltage side when de-energized, and a coil of the DC relay connected to an AC input terminal. a first Zener diode, a first transistor, and a resistor inserted between the output of the diode bridge and the coil of the DC relay and connected in series; a switching circuit that energizes or cuts off the first transistor according to the voltage across the resistor; and a second Zener diode and a smoothing capacitor connected in parallel to the coil of the DC relay. Features a power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7573086U JPS62187316U (en) | 1986-05-20 | 1986-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7573086U JPS62187316U (en) | 1986-05-20 | 1986-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62187316U true JPS62187316U (en) | 1987-11-28 |
Family
ID=30922145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7573086U Pending JPS62187316U (en) | 1986-05-20 | 1986-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62187316U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391361A (en) * | 1977-01-21 | 1978-08-11 | Nec Corp | Power supply device |
-
1986
- 1986-05-20 JP JP7573086U patent/JPS62187316U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391361A (en) * | 1977-01-21 | 1978-08-11 | Nec Corp | Power supply device |
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