OPEN SWITCH SPECIFYING DEVICE

To solve the problem of a circuit that specifies an open switch including a resistance synthesis circuit having a group of resistors prepared corresponding to the respective switches connected to a switch group, in which short-circuit of the resistance synthesis circuit results in a damage to a cons...

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Bibliographic Details
Main Authors HIRAO TAKESHI, FUKUDA TAIYO
Format Patent
LanguageEnglish
Japanese
Published 10.07.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
RELAYS
SELECTORS
TESTING
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Summary:To solve the problem of a circuit that specifies an open switch including a resistance synthesis circuit having a group of resistors prepared corresponding to the respective switches connected to a switch group, in which short-circuit of the resistance synthesis circuit results in a damage to a constant voltage power source.SOLUTION: A parallel circuit of a transistor and a diode is inserted between a constant voltage power source and a resistance synthesis circuit, and a transistor is not made electrically conductive in the occurrence of short-circuit.SELECTED DRAWING: Figure 1 【課題】開放されたスイッチを特定する回路では、各スイッチに対応する抵抗を用意し、スイッチ群と抵抗群を接続した抵抗合成回路を用いる。その抵抗合成回路が天絡すると、定電圧電源が損傷する可能性がある。【解決手段】定電圧電源と抵抗合成回路の間にトランジスタとダイオードの並列回路を挿入し、天絡発生時にはトランジスタを導通させない。【選択図】図１
Bibliography:Application Number: JP20220211910