JPH0247578U - - Google Patents
Info
- Publication number
- JPH0247578U JPH0247578U JP12517988U JP12517988U JPH0247578U JP H0247578 U JPH0247578 U JP H0247578U JP 12517988 U JP12517988 U JP 12517988U JP 12517988 U JP12517988 U JP 12517988U JP H0247578 U JPH0247578 U JP H0247578U
- Authority
- JP
- Japan
- Prior art keywords
- output
- thyristor
- abnormality detection
- detection circuit
- level
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005856 abnormality Effects 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
【図面の簡単な説明】
第１図は本考案による出力異常検出回路の一実
施例を示すブロツク図、第２図は第１図の出力異
常検出回路の具体的な構成を示す回路図、第３図
は第２図とは異なる他の構成を示す回路図である
。第４図は従来の出力異常検出回路の一例を示す
ブロツク図である。
１０…出力異常検出回路、１１…電源回路、１
２，１３，１４…異常電圧検出回路、１５…保護
回路、１６…表示回路、１７ａ，１７ｂ，１７ｃ
…発光素子、２１，２２，２３…Ｄ形フリツプフ
ロツプ、２４，２５，２６…ナンドゲート、２７
，２８，２９…トランジスタ、３１，３２，３３
…サイリスタ。[Brief Description of the Drawings] Fig. 1 is a block diagram showing an embodiment of the output abnormality detection circuit according to the present invention, and Fig. 2 is a circuit diagram showing a specific configuration of the output abnormality detection circuit of Fig. 1. FIG. 3 is a circuit diagram showing another configuration different from that in FIG. 2. FIG. 4 is a block diagram showing an example of a conventional output abnormality detection circuit. 10... Output abnormality detection circuit, 11... Power supply circuit, 1
2, 13, 14... Abnormal voltage detection circuit, 15... Protection circuit, 16... Display circuit, 17a, 17b, 17c
...Light emitting element, 21, 22, 23...D flip-flop, 24, 25, 26...NAND gate, 27
, 28, 29...transistor, 31, 32, 33
...thyristor.
Claims (1)
それぞれ接続された複数個の異常電圧検出回路と
、該異常電圧検出回路のいずれかから異常検出信
号が入力されたとき該電源回路に停止信号を出力
する共通の一つの保護回路とを含む出力異常検出
回路において、 各異常電圧検出回路に対応する発光素子を備え
た表示回路が設けられており、該異常電圧検出回
路からの異常検出信号のうち、最も早く出力され
た異常検出信号に基づいて、該信号に対応する電
源回路の出力のみの点灯表示を行なうことを特徴
とする、出力異常検出回路。 (2) 各異常電圧検出回路の出力が、それぞれフ
リツプフロツプのクロツク入力に接続され、該フ
リツプフロツプの出力が、それぞれ電源回路の各
出力に対応して備えられたナンドゲートの一つの
入力に与えられ、該ナンドゲートの他の入力には
、他のナンドゲートの出力が与えられており、さ
らに各ナンドゲートの出力に従つて発光素子への
給電がオンオフされるように構成されており、最
も早く出力された異常検出信号により当該フリツ
プフロツプが立ち上がつてＨレベルの信号を出力
し、これによりナンドゲートの出力がＬレベルに
反転して、当該発光素子が点灯せしめられると共
に、上記ナンドゲートのＬレベルの出力が他のナ
ンドゲートの他の入力に与えられることにより、
該他のナンドゲートの出力がＨレベルに保持され
るようにしたことを特徴とする、請求項第１項に
記載の出力異常検出回路。 (3) 各異常電圧検出回路の出力がそれぞれサイ
リスタのゲートに接続され、各サイリスタのアノ
ード側がそれぞれ他のサイリスタのゲートに接続
されると共に、さらに各サイリスタのスイツチン
グ作用により関連する発光素子への給電がオンオ
フされるように構成されており、最も早く出力さ
れた異常検出信号により当該サイリスタがオンに
され、これにより当該発光素子が点灯せしめられ
ると共に、上記サイリスタのアノード側がＬレベ
ルになつて、これが他のサイリスタのゲートに与
えられることにより、該他のサイリスタのゲート
がＬレベルに保持されるようにしたことを特徴と
する、請求項第１項に記載の出力異常検出回路。[Claims for Utility Model Registration] (1) A plurality of abnormal voltage detection circuits each connected to each output of a power supply circuit having a plurality of outputs, and an abnormality detection signal input from one of the abnormal voltage detection circuits. In the output abnormality detection circuit including one common protection circuit that outputs a stop signal to the power supply circuit when the abnormal voltage is detected, a display circuit equipped with a light emitting element corresponding to each abnormal voltage detection circuit is provided, An output abnormality detection circuit characterized in that, based on the abnormality detection signal outputted earliest among the abnormality detection signals from the voltage detection circuit, only the output of the power supply circuit corresponding to the signal is displayed by lighting. (2) The output of each abnormal voltage detection circuit is connected to the clock input of a flip-flop, and the output of the flip-flop is given to one input of a NAND gate provided corresponding to each output of the power supply circuit. The outputs of other NAND gates are given to the other inputs of the NAND gate, and the power supply to the light emitting element is turned on and off according to the output of each NAND gate. The flip-flop rises in response to the signal and outputs an H-level signal, which inverts the output of the NAND gate to L-level and lights up the light-emitting element, and the L-level output of the NAND gate outputs an H-level signal. By being given the other inputs of
2. The output abnormality detection circuit according to claim 1, wherein the output of said other NAND gate is held at H level. (3) The output of each abnormal voltage detection circuit is connected to the gate of the thyristor, the anode side of each thyristor is connected to the gate of the other thyristor, and the switching action of each thyristor supplies power to the related light emitting element. The thyristor is turned on and turned on by the abnormality detection signal that is outputted the earliest, thereby lighting up the light emitting element, and the anode side of the thyristor goes to L level. 2. The output abnormality detection circuit according to claim 1, wherein the output abnormality detection circuit is applied to the gate of another thyristor so that the gate of the other thyristor is held at L level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12517988U JPH0631429Y2 (en) | 1988-09-27 | 1988-09-27 | Output abnormality detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12517988U JPH0631429Y2 (en) | 1988-09-27 | 1988-09-27 | Output abnormality detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0247578U true JPH0247578U (en) | 1990-03-30 |
| JPH0631429Y2 JPH0631429Y2 (en) | 1994-08-22 |
Family
ID=31375556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12517988U Expired - Lifetime JPH0631429Y2 (en) | 1988-09-27 | 1988-09-27 | Output abnormality detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631429Y2 (en) |
-
1988
- 1988-09-27 JP JP12517988U patent/JPH0631429Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631429Y2 (en) | 1994-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5818180Y2 (en) | Niyuuriyokusouchi | |
| JPS60178891U (en) | Fault indicator | |
| JPH0247578U (en) | ||
| JPS6316990Y2 (en) | ||
| JPS60104882U (en) | Segment type numeric display | |
| JPH0219835Y2 (en) | ||
| KR840004334A (en) | Apparatus for applying 2-stage logic testing signal to one input terminal of logic circuit | |
| JPS6033390U (en) | Signal light blinking control device | |
| JPS5923760U (en) | Light emitting diode switching circuit | |
| JPS5848046U (en) | Mode display circuit | |
| JPS5887369U (en) | lighting circuit | |
| JPS6087018U (en) | satellite power supply | |
| JPS6041194A (en) | Display unit | |
| JPH09258851A (en) | Electric device with reset function | |
| JPS6119835U (en) | Computer DC power supply monitoring device | |
| JPS59147248U (en) | Microprocessor reset circuit | |
| JPH0345044U (en) | ||
| JPS5832540U (en) | Abnormal signal generation circuit | |
| JPS5866720U (en) | Low power supply voltage warning circuit | |
| JPS6050539U (en) | Solid state relay with fault indication mechanism | |
| JPS6077420U (en) | Trinkets with flashing lights | |
| JPS60187996U (en) | monitoring board | |
| JPS5850487U (en) | switching circuit | |
| JPS585203U (en) | Vehicle indicator circuit | |
| JPS60132138U (en) | Alarm power supply circuit |