JPS63137529U - - Google Patents
Info
- Publication number
- JPS63137529U JPS63137529U JP2467487U JP2467487U JPS63137529U JP S63137529 U JPS63137529 U JP S63137529U JP 2467487 U JP2467487 U JP 2467487U JP 2467487 U JP2467487 U JP 2467487U JP S63137529 U JPS63137529 U JP S63137529U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- series
- circuit
- input
- output
- 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 5
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Rectifiers (AREA)
Description
第１図は、本考案の保護回路を示す図。第２図
は、保護回路の各部位に於ける波形を示す。
１…ヒユーズ、２…リレー（ノーマルオン）、
３…２のリレーコイル、４…平滑コンデンサ、５
…トライアツク、６…ダイオードブリツジ、７…
電圧検出素子（ツエナーダイオード）、８…交流
入力電圧１００Ｖ系／２００Ｖ系切り換えスイツ
チ、９…スイツチング素子（サイリスタ）。
FIG. 1 is a diagram showing a protection circuit of the present invention. FIG. 2 shows waveforms at various parts of the protection circuit. 1...Fuse, 2...Relay (normally on),
3...2 relay coils, 4...smoothing capacitors, 5
...triax, 6...diode bridge, 7...
Voltage detection element (Zener diode), 8...AC input voltage 100V system/200V system changeover switch, 9...Switching element (thyristor).
Claims (1)
流電圧を発生する倍電圧整流回路に於て、交流入
力回路にはトライアツクを直列に挿入し、トライ
アツクには並列にトライアツクのゲート電圧を印
加するための抵抗と、直列に、リレーのコイルに
電流が流れた時にリレー接点が開となるリレーを
挿入し、直流出力回路の正電圧端子と負電圧端子
の間にはコンデンサ２個を直列に挿入し、二つの
コンデンサの中点と交流入力回路の一端との間に
は手動によりオン・オフする切り換えスイツチを
直列に接続挿入し、又、直流出力側の二つのコン
デンサの中点から、保護回路の動作電圧を決める
ツエナーダイオードに抵抗を直列に接続して、抵
抗の一端は直流出力電圧側の負電圧端子に接続し
、ツエナーダイオードに直列に接続した抵抗両端
に発生する電圧により、直流出力電圧の正電圧端
子からトライアツクに並列に入るリレーのコイル
と直列に接続したサイリスタのゲートを駆動する
様にし、交流入力電圧が設定電圧をこえる時、出
力直流電圧を検知し、交流入力に直列に入るトラ
イアツクの動作を開にし整流回路以降の回路の破
壊を防止する様構成した電子回路の保護回路。 (2) １項記載の実用新案登録請求の範囲に於て
、出力直流電圧側の正負端子間に接続された二つ
のコンデンサの中点と、交流入力回路側の一端を
接続する回路の間に、手動によりオン・オフする
切り換えスイツチを挿入し、保護回路が動作した
時にリレーをオフし、又、手動により入力電圧に
対応して回路を切り換える様に構成した保護回路
。[Claims for Utility Model Registration] (1) In a voltage doubler rectifier circuit that rectifies an AC input voltage and generates a double voltage DC voltage at the output, a triac is inserted in series in the AC input circuit, and Insert a resistor in parallel to apply the gate voltage of the triax, and a relay in series that opens the relay contacts when current flows through the relay coil, and connect the positive voltage terminal and negative voltage terminal of the DC output circuit. Two capacitors are inserted in series between them, and a manually turned on/off switch is inserted in series between the midpoint of the two capacitors and one end of the AC input circuit. A resistor is connected in series from the midpoint of the two capacitors to a Zener diode that determines the operating voltage of the protection circuit, one end of the resistor is connected to the negative voltage terminal on the DC output voltage side, and a resistor is connected in series to the Zener diode. The voltage generated at both ends drives the gate of a thyristor connected in series with the coil of a relay that enters the triax in parallel from the positive voltage terminal of the DC output voltage, and when the AC input voltage exceeds the set voltage, the output DC voltage A protection circuit for electronic circuits configured to detect this and open the operation of the triax connected in series to the AC input to prevent damage to the circuits after the rectifier circuit. (2) In the scope of the utility model registration claim described in paragraph 1, between the midpoint of two capacitors connected between the positive and negative terminals of the output DC voltage side and the circuit connecting one end of the AC input circuit side. A protection circuit configured to insert a manual on/off switch, turn off the relay when the protection circuit is activated, and manually switch the circuit according to the input voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2467487U JPS63137529U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2467487U JPS63137529U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63137529U true JPS63137529U (en) | 1988-09-09 |
Family
ID=30824120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2467487U Pending JPS63137529U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63137529U (en) |
-
1987
- 1987-02-20 JP JP2467487U patent/JPS63137529U/ja active Pending
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