JPS6366023U - - Google Patents
Info
- Publication number
- JPS6366023U JPS6366023U JP15989686U JP15989686U JPS6366023U JP S6366023 U JPS6366023 U JP S6366023U JP 15989686 U JP15989686 U JP 15989686U JP 15989686 U JP15989686 U JP 15989686U JP S6366023 U JPS6366023 U JP S6366023U
- Authority
- JP
- Japan
- Prior art keywords
- electronic device
- state
- power outage
- rectifying
- electric potential
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の一実施例の停電保障回路を有
する集積回路２１および外部回路の一部分の簡略
化したブロツク図、第２図は従来技術の停電保障
回路を有する集積回路１および外部回路の一部分
の簡略化したブロツク図である。
２１……集積回路、２２……商用周波電源、２
３……変圧器、２４……整流回路、２５……平滑
回路、２７……第１電源入力端子、２８……比較
回路、２９……逆流防止ダイオード、３０……限
流抵抗、３１……電解コンデンサ、３３……第２
電源入力端子、３４……内部電源回路。
FIG. 1 is a simplified block diagram of an integrated circuit 21 having a power failure protection circuit according to an embodiment of the present invention and a part of an external circuit, and FIG. FIG. 2 is a simplified block diagram of a portion. 21...Integrated circuit, 22...Commercial frequency power supply, 2
3... Transformer, 24... Rectifier circuit, 25... Smoothing circuit, 27... First power input terminal, 28... Comparison circuit, 29... Backflow prevention diode, 30... Current limiting resistor, 31... Electrolytic capacitor, 33...2nd
Power input terminal, 34...Internal power supply circuit.
Claims (1)
の間で切換える制御信号を導出する比較手段と、 前記比較手段の入力端子間に亘つて設けられる
整流手段と、 前記整流手段の一方側に接続される充放電手段
とを含み、 整流手段の他方側に供給された電力は、比較手
段の一方入力端子に入力され、 整流手段の前記一方側電位が他方側電位を超え
たとき、比較手段は電子機器を停電時状態に切換
えるようにしたことを特徴とする電子機器の停電
検知回路。[Claims for Utility Model Registration] Comparison means for deriving a control signal for switching the operating state of an electronic device between a normal state and a power outage state; a rectification means provided across input terminals of the comparison means; a charging/discharging means connected to one side of the rectifying means, the electric power supplied to the other side of the rectifying means is input to one input terminal of the comparing means, and the electric potential on one side of the rectifying means is equal to the electric potential on the other side. 1. A power outage detection circuit for an electronic device, characterized in that when the value exceeds 1, the comparison means switches the electronic device to a state at the time of a power outage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15989686U JPS6366023U (en) | 1986-10-18 | 1986-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15989686U JPS6366023U (en) | 1986-10-18 | 1986-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6366023U true JPS6366023U (en) | 1988-05-02 |
Family
ID=31084759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15989686U Pending JPS6366023U (en) | 1986-10-18 | 1986-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6366023U (en) |
-
1986
- 1986-10-18 JP JP15989686U patent/JPS6366023U/ja active Pending
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