POWER SUPPLY CHANGEOVER METHOD

PURPOSE:To surely change over to an auxiliary power supply by sending a signal at all times from a working power supply to a changeover circuit during normal operation of the working power supply, and ceasing to send said signal at the time of toouble or failure of the working power supply, and chan...

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Bibliographic Details
Main Authors HONJO KENJI, NAKAMURA TORU
Format Patent
LanguageEnglish
Published 13.03.1992
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:PURPOSE:To surely change over to an auxiliary power supply by sending a signal at all times from a working power supply to a changeover circuit during normal operation of the working power supply, and ceasing to send said signal at the time of toouble or failure of the working power supply, and changing it over to the auxiliary power supply. CONSTITUTION:During normal operation of a working power supply 1, a changeover logic circuit 33 controls a thyristor 31 to turn ON and a thyristor 32 to turn OFF. Accordingly, the load 1 is supplied with power from the working power supply 1. However, if the working power supply 1 goes wrong, a control power supply 13 is lost, or a signal transmission line shorts or breaks, the changeover logic circuit 33 controls the thyristor 31 to turn OFF and the thyristor 32 to turn ON, and it becomes auxiliary power supply.
Bibliography:Application Number: JP19900190485