JPS6340138U - - Google Patents
Info
- Publication number
- JPS6340138U JPS6340138U JP13158386U JP13158386U JPS6340138U JP S6340138 U JPS6340138 U JP S6340138U JP 13158386 U JP13158386 U JP 13158386U JP 13158386 U JP13158386 U JP 13158386U JP S6340138 U JPS6340138 U JP S6340138U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- voltage level
- power
- power supply
- charged
- 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 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
第１図は本考案に係わる電源バツクアツプ回路
の一実施例を示す構成図、第２図は本考案回路に
おける電源バツクアツプフローチヤート、第３図
は本考案回路のしや断時の等価回路である。
１……直流電源回路、２……交流電源、４……
マイクロコンピユータ、Ｑ１……ＰＮＰ型トラン
ジスタ、Ｑ２……Ｎ―ＭＯＳ型トランジスタ、Ｃ
……コンデンサ、ＰＩ……入力ポート、ＰＯ……
出力ポート。
Figure 1 is a block diagram showing an embodiment of the power backup circuit according to the present invention, Figure 2 is a power backup flowchart in the circuit of the present invention, and Figure 3 is an equivalent circuit when the circuit of the present invention is disconnected. be. 1...DC power supply circuit, 2...AC power supply, 4...
Microcomputer, Q1...PNP type transistor, Q2...N-MOS type transistor, C
...Capacitor, PI...Input port, PO...
Output port.
Claims (1)
グ素子と、供給される前記直流電力の電圧レベル
が所定電圧レベル降下したことを入力ポートを通
して検出するとともに電圧レベル低下を検出した
ときに出力ポートを通して前記スイツチング素子
を非導通状態に制御する機能を有するマイクロコ
ンピユータと、前記スイツチング素子を通して充
電されかつこのスイツチング素子の非導通時に充
電された電力を前記マイクロコンピユータに供給
する大容量のコンデンサとを具備したことを特徴
とする電源バツクアツプ回路。 a switching element connected to a DC power supply line; a switching element that detects through an input port that the voltage level of the supplied DC power has dropped to a predetermined voltage level; and when a voltage level drop is detected, connects the switching element to the output port; and a large-capacity capacitor that is charged through the switching element and supplies the charged power to the microcomputer when the switching element is non-conductive. Power supply backup circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13158386U JPS6340138U (en) | 1986-08-28 | 1986-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13158386U JPS6340138U (en) | 1986-08-28 | 1986-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6340138U true JPS6340138U (en) | 1988-03-15 |
Family
ID=31030170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13158386U Pending JPS6340138U (en) | 1986-08-28 | 1986-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340138U (en) |
-
1986
- 1986-08-28 JP JP13158386U patent/JPS6340138U/ja active Pending