JPS59138396U - Input voltage automatic switching power supply - Google Patents
Input voltage automatic switching power supplyInfo
- Publication number
- JPS59138396U JPS59138396U JP3359283U JP3359283U JPS59138396U JP S59138396 U JPS59138396 U JP S59138396U JP 3359283 U JP3359283 U JP 3359283U JP 3359283 U JP3359283 U JP 3359283U JP S59138396 U JPS59138396 U JP S59138396U
- Authority
- JP
- Japan
- Prior art keywords
- input voltage
- switching signal
- power supply
- switching power
- automatic switching
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の入力電圧自動切換電源装置の回路図、第
２図ａ、 ｂはＡＣ入力電圧の急激な変化の例を示す波
形図、およびこの時の第１図Ａ点の電圧変動を示す波形
図、第３図は本考案の一実施例による入力電圧自動切換
電源装置の回路図である。
１００・・・整流回路、２θ０・・・切換信号発生回路
、２１・・・切換信号平滑コンデンサ、３０・・・トラ
ンジ ′スタ（放電素子）、７０・・・入力電圧変
動検出回路。
なお図中同一符号は同−又は相当部分を示す。Figure 1 is a circuit diagram of a conventional input voltage automatic switching power supply device, Figures 2 a and b are waveform diagrams showing an example of a sudden change in AC input voltage, and the voltage fluctuation at point A in Figure 1 at this time. The waveform diagram shown in FIG. 3 is a circuit diagram of an input voltage automatic switching power supply device according to an embodiment of the present invention. 100... Rectifier circuit, 2θ0... Switching signal generation circuit, 21... Switching signal smoothing capacitor, 30... Transistor (discharge element), 70... Input voltage fluctuation detection circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ぽ回路と、切換信号平滑コンデンサを有Ｉ−上記整流回
路への入力電圧の大きさに応じて上記切換信号を発生す
る切換信号発生回路と、上記切換信号平滑コンデンサを
放電させるための放電素子と、上記入力電圧の急激な上
昇を検出しこのとき上記放電素子を動作させる入力電圧
変動検出回路とを備えたことを特徴とする入力電圧自動
切換電源装置。A switching signal generator that generates the switching signal according to the magnitude of the input voltage to the rectifying circuit, which includes a rectifier circuit that rectifies the input voltage as a single wave or double voltage according to the switching signal, and a switching signal smoothing capacitor. An input circuit comprising: a discharge element for discharging the switching signal smoothing capacitor; and an input voltage fluctuation detection circuit that detects a sudden increase in the input voltage and operates the discharge element at this time. Automatic voltage switching power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3359283U JPS59138396U (en) | 1983-03-07 | 1983-03-07 | Input voltage automatic switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3359283U JPS59138396U (en) | 1983-03-07 | 1983-03-07 | Input voltage automatic switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59138396U true JPS59138396U (en) | 1984-09-14 |
Family
ID=30164375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3359283U Pending JPS59138396U (en) | 1983-03-07 | 1983-03-07 | Input voltage automatic switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59138396U (en) |
-
1983
- 1983-03-07 JP JP3359283U patent/JPS59138396U/en active Pending
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