JPS63139616U - - Google Patents
Info
- Publication number
- JPS63139616U JPS63139616U JP3080387U JP3080387U JPS63139616U JP S63139616 U JPS63139616 U JP S63139616U JP 3080387 U JP3080387 U JP 3080387U JP 3080387 U JP3080387 U JP 3080387U JP S63139616 U JPS63139616 U JP S63139616U
- Authority
- JP
- Japan
- Prior art keywords
- zener diode
- rectifier circuit
- thyristor
- series
- resistor
- 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
- 238000009499 grossing Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Rectifiers (AREA)
- Control Of Electrical Variables (AREA)
Description
第1図ないし第4図は本考案による直流電源回
路の実施例と動作を示し、第1図は一実施例を示
す結線図、第2図、第3図はそれぞれ第1図の回
路の動作を示し、第2図は電源電圧が低い場合の
波形図、第3図は電源電圧が高いか負荷電流が小
さい場合の波形図、第4図は第1図と異なる実施
例を示す結線図、第5図は従来の直流電源回路の
結線図である。
3:降圧コンデンサ、4:整流回路、5:ツエ
ナダイオード、6:平滑コンデンサ、8:抵抗、
9:サイリスタ、10:ダイオード。
1 to 4 show an embodiment and operation of the DC power supply circuit according to the present invention, FIG. 1 is a wiring diagram showing one embodiment, and FIGS. 2 and 3 respectively show the operation of the circuit in FIG. 1. , FIG. 2 is a waveform diagram when the power supply voltage is low, FIG. 3 is a waveform diagram when the power supply voltage is high or the load current is small, and FIG. 4 is a wiring diagram showing an embodiment different from FIG. 1. FIG. 5 is a wiring diagram of a conventional DC power supply circuit. 3: Step-down capacitor, 4: Rectifier circuit, 5: Zener diode, 6: Smoothing capacitor, 8: Resistor,
9: Thyristor, 10: Diode.
Claims (1)
続し、この整流回路の出力端にツエナダイオード
と平滑コンデンサとを接続した直流電源回路にお
いて、前記ツエナダイオードのカソード側に直列
に接続した抵抗と、前記整流回路の正極側にアノ
ードを負極側にカソードをそれぞれ接続し前記ツ
エナダイオードと抵抗との接続点にゲートを接続
したサイリスタと、前記平滑コンデンサをこの直
流電源回路の出力端に接続しこの平滑コンデンサ
と前記サイリスタとの間に接続した逆流防止回路
とを設けたことを特徴とする直流電源回路。 In a DC power supply circuit including a step-down capacitor connected in series to the input end of a rectifier circuit, and a Zener diode and a smoothing capacitor connected to the output end of the rectifier circuit, a resistor connected in series to the cathode side of the Zener diode, and a resistor connected in series to the cathode side of the Zener diode; A thyristor whose anode is connected to the positive side of the rectifier circuit and a cathode is connected to the negative side of the rectifier circuit, and whose gate is connected to the connection point between the Zener diode and the resistor, and the smoothing capacitor is connected to the output end of the DC power supply circuit. and a backflow prevention circuit connected between the thyristor and the thyristor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3080387U JPS63139616U (en) | 1987-03-03 | 1987-03-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3080387U JPS63139616U (en) | 1987-03-03 | 1987-03-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63139616U true JPS63139616U (en) | 1988-09-14 |
Family
ID=30835952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3080387U Pending JPS63139616U (en) | 1987-03-03 | 1987-03-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63139616U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205621A (en) * | 1983-05-09 | 1984-11-21 | Matsushita Electric Works Ltd | Power supply circuit |
-
1987
- 1987-03-03 JP JP3080387U patent/JPS63139616U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205621A (en) * | 1983-05-09 | 1984-11-21 | Matsushita Electric Works Ltd | Power supply circuit |
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