JPS6420080U - - Google Patents
Info
- Publication number
- JPS6420080U JPS6420080U JP1987112906U JP11290687U JPS6420080U JP S6420080 U JPS6420080 U JP S6420080U JP 1987112906 U JP1987112906 U JP 1987112906U JP 11290687 U JP11290687 U JP 11290687U JP S6420080 U JPS6420080 U JP S6420080U
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- anode
- gate
- power supply
- capacitor
- 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 7
- 238000009499 grossing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Description
第１図はこの考案に係るコンデンサドロツプ方
式の電源回路の一例を示す電気回路図、第２図は
同電源回路の動作説明用の信号波形図、第３図は
従来のコンデンサドロツプ方式の電源回路の構成
を示す電気回路図である。
Ｃ１……降圧用コンデンサ、Ｃ２……平滑用コ
ンデンサ、Ｐ１，Ｐ２……交流電源端子、Ｒ３，
Ｒ４……抵抗体、ＲＬ……負荷、ＳＣＲ……サイ
リスタ、ＴＲ……スイツチング素子、ＺＤ……定
電圧素子。
Fig. 1 is an electric circuit diagram showing an example of a capacitor drop type power supply circuit according to this invention, Fig. 2 is a signal waveform diagram for explaining the operation of the power supply circuit, and Fig. 3 is a conventional capacitor drop type power supply circuit. FIG. 2 is an electrical circuit diagram showing the configuration of a power supply circuit of the system. C 1 ... Step-down capacitor, C 2 ... Smoothing capacitor, P 1 , P 2 ... AC power supply terminal, R 3 ,
R4 ...Resistor, RL...Load, SCR...Thyristor, TR...Switching element, ZD...Constant voltage element.
Claims (1)
に降圧用コンデンサを介してアノードが接続され
、カソードが負荷を介して上記他方の交流電源端
子に接続されて、半波整流素子を構成するサイリ
スタと、上記負荷に並列接続された平滑用コンデ
ンサと、上記サイリスタのアノードとゲートとの
間に接続されたトリガ用のゲート抵抗体と、上記
サイリスタのゲートと他方の交流電源端子との間
に接続されたスイツチング素子と、カソードが上
記サイリスタのアノードに接続され、アノードが
上記スイツチング素子のゲートに抵抗体を介して
接続されて、交流電源電圧が正の半サイクルのゼ
ロクロス近傍電位を越えると上記スイツチングト
ランジスタをＯＮさせる定電圧素子とを具備した
ことを特徴とするコンデンサドロツプ方式の電源
回路。 A pair of AC power terminals, an anode connected to one AC power terminal via a step-down capacitor, and a cathode connected to the other AC power terminal via a load, forming a half-wave rectifier. A thyristor, a smoothing capacitor connected in parallel to the load, a trigger gate resistor connected between the anode and gate of the thyristor, and between the gate of the thyristor and the other AC power supply terminal. The switching element is connected, the cathode is connected to the anode of the thyristor, and the anode is connected to the gate of the switching element via a resistor, and when the AC power supply voltage exceeds the near-zero cross potential of the positive half cycle, the above-mentioned A capacitor drop type power supply circuit characterized by comprising a constant voltage element that turns on a switching transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112906U JPS6420080U (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112906U JPS6420080U (en) | 1987-07-22 | 1987-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6420080U true JPS6420080U (en) | 1989-01-31 |
Family
ID=31352270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987112906U Pending JPS6420080U (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420080U (en) |
-
1987
- 1987-07-22 JP JP1987112906U patent/JPS6420080U/ja active Pending
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