JPS6284331U - - Google Patents
Info
- Publication number
- JPS6284331U JPS6284331U JP17696485U JP17696485U JPS6284331U JP S6284331 U JPS6284331 U JP S6284331U JP 17696485 U JP17696485 U JP 17696485U JP 17696485 U JP17696485 U JP 17696485U JP S6284331 U JPS6284331 U JP S6284331U
- Authority
- JP
- Japan
- Prior art keywords
- power transformer
- anode
- cathode
- diodes
- terminals
- 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 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案になる停電検出回路の一実施例
を示す図、第２図は第１図の停電検出回路の動作
を説明するための電圧波形図、第３図は従来の停
電検出回路の一例を示す図である。
１…電源トランス、２…整流回路、３…端子、
４…トランジスタ（スイツチング手段）、６…出
力端子、Ｃ１，Ｃ４…コンデンサ（Ｃ１は充電素
子）、Ｄ１〜Ｄ４…ダイオード（Ｄ１は第１のダ
イオード、Ｄ２は第２のダイオード）、Ｒ１〜Ｒ
５，Ｒ７…抵抗（Ｒ１は第１の抵抗、Ｒ２は第２
の抵抗）。
Figure 1 is a diagram showing an embodiment of the power failure detection circuit of the present invention, Figure 2 is a voltage waveform diagram for explaining the operation of the power failure detection circuit of Figure 1, and Figure 3 is a conventional power failure detection circuit. It is a figure showing an example. 1...power transformer, 2...rectifier circuit, 3...terminal,
4...Transistor (switching means), 6...Output terminal, C1 , C4 ...Capacitor ( C1 is a charging element), D1 to D4 ...Diode ( D1 is the first diode, D2 is the second diode), R 1 to R
5 , R7 ...Resistance ( R1 is the first resistor, R2 is the second resistor
resistance).
Claims (1)
、 この電源トランスの２次側の両端子に接続され
る整流回路と、 前記電源トランスの２次側の両端子にカソード
（またはアノード）が夫々接続され、アノード（
またはカソード）が互いに接続される第１、第２
のダイオードと、 前記電源トランスの２次側の両端子と前記第１
、第２のダイオードのカソード（またはアノード
）との各接続点とアースとの間に夫々接続される
第１、第２の抵抗と、 前記整流回路の出力端子と前記第１、第２のダ
イオードの各アノード（またはカソード）の接続
点との間に接続される充電素子と、 前記第１、第２のダイオードの各アノード（ま
たはカソード）の接続点に切換制御端子が接続さ
れ、この切換制御端子に印加される制御信号によ
り前記電源トランスに交流電圧が印加されている
時にはオフの状態に切換えられ、前記電源トラン
スに交流電圧が印加されていない時にはオンの状
態に切換えられるスイツチング手段とより構成し
たことを特徴とする停電検出回路。[Claims for Utility Model Registration] A power transformer to which an alternating voltage is applied to the primary side, a rectifier circuit connected to both terminals on the secondary side of the power transformer, and both terminals on the secondary side of the power transformer. A cathode (or anode) is connected to each, and an anode (
or cathode) are connected to each other.
a diode, both terminals on the secondary side of the power transformer and the first
, first and second resistors connected between respective connection points with the cathode (or anode) of the second diode and the ground, and an output terminal of the rectifier circuit and the first and second diodes. A switching control terminal is connected to a charging element connected to a connection point of each anode (or cathode) of the first and second diodes, and a switching control terminal is connected to a connection point of each anode (or cathode) of the first and second diodes. Switching means is configured to be switched to an OFF state when an AC voltage is applied to the power transformer by a control signal applied to a terminal, and switched to an ON state when an AC voltage is not applied to the power transformer. A power outage detection circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17696485U JPS6284331U (en) | 1985-11-18 | 1985-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17696485U JPS6284331U (en) | 1985-11-18 | 1985-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6284331U true JPS6284331U (en) | 1987-05-29 |
Family
ID=31117716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17696485U Pending JPS6284331U (en) | 1985-11-18 | 1985-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6284331U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52100143A (en) * | 1976-02-18 | 1977-08-22 | Toshiba Corp | Insufficient voltage detector |
-
1985
- 1985-11-18 JP JP17696485U patent/JPS6284331U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52100143A (en) * | 1976-02-18 | 1977-08-22 | Toshiba Corp | Insufficient voltage detector |
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