JPS59164457U - power backup circuit - Google Patents
power backup circuitInfo
- Publication number
- JPS59164457U JPS59164457U JP5540283U JP5540283U JPS59164457U JP S59164457 U JPS59164457 U JP S59164457U JP 5540283 U JP5540283 U JP 5540283U JP 5540283 U JP5540283 U JP 5540283U JP S59164457 U JPS59164457 U JP S59164457U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- current
- backup circuit
- supply circuit
- 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
Landscapes
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
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図および第２図は従来例を示し、第１図は回路構成
図、第２図は入力電圧Ｖ１Ｎと出力電圧■。頃との関係
を示した電圧波形図、第３図および第４図は、この考案
の第１実施例を示し、第３図は、回路構成図、第４図は
入力電圧Ｖ１Ｎ（！：比出力 ゛電圧■。オとの関
係を示した電圧波形図、第５図はこの考案の第２実施例
を示した回路構成図である。
２・・・・・・電源回路、Ｔｒｌ、Ｔｒ１２・・・・・
・トランジスタ、Ｄｉ・・・・・・ダイオード。1 and 2 show a conventional example, where FIG. 1 is a circuit configuration diagram and FIG. 2 is an input voltage V1N and an output voltage (2). 3 and 4 show the first embodiment of this invention, FIG. 3 is a circuit configuration diagram, and FIG. 4 is a voltage waveform diagram showing the relationship between the input voltage V1N (!: ratio A voltage waveform diagram showing the relationship between the output ゛voltage■.・・・・・・
・Transistor, Di...Diode.
Claims (1)
スイッチング回路と負荷側との間に設けられ、入力側か
らの電流が停止した場合に負荷側へ電流を供給する電源
回路と、前記スイッチング回路の入力端と前記電源回路
との電位差を比較し、該入力端の電圧が小さくなった時
に導通して前記電源回路の電流を導出する導出回路とを
具備して、 成る電源バックアップ回路。A switching circuit that guides current from the input side to the load side, a power supply circuit that is provided between the switching circuit and the load side and supplies current to the load side when the current from the input side stops, and the switching circuit. A power supply backup circuit comprising: a derivation circuit that compares a potential difference between an input terminal of the power supply circuit and the power supply circuit, and conducts when the voltage at the input terminal becomes small to derive a current of the power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5540283U JPS59164457U (en) | 1983-04-15 | 1983-04-15 | power backup circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5540283U JPS59164457U (en) | 1983-04-15 | 1983-04-15 | power backup circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59164457U true JPS59164457U (en) | 1984-11-05 |
Family
ID=30185727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5540283U Pending JPS59164457U (en) | 1983-04-15 | 1983-04-15 | power backup circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164457U (en) |
-
1983
- 1983-04-15 JP JP5540283U patent/JPS59164457U/en active Pending
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