Switching power supply and method for stopping supply of electricity when electricity of switching power supply exceeds rated electricity

A switching power supply includes a sensor for detecting that the output level of the switching power supply has exceeded a rated output level, and a memory that stores data for estimating temperature change of a heat-producing component during a period in which the output level is higher than the r...

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Hauptverfasser:	MIZUNO TAKAFUMI, OTOSHI KOTA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
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creator	MIZUNO TAKAFUMI OTOSHI KOTA
description	A switching power supply includes a sensor for detecting that the output level of the switching power supply has exceeded a rated output level, and a memory that stores data for estimating temperature change of a heat-producing component during a period in which the output level is higher than the rated output level. The data is differentiation data of a curve that represents temperature change characteristics of the heat-producing component. An estimated temperature of the heat-producing component is computed based on the time elapsed from when the output level of the switching power supply exceeds the rated output level and the differentiation data. When the estimated temperature of the heat-producing component reaches an upper threshold temperature, a switching element is deactivated.
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The data is differentiation data of a curve that represents temperature change characteristics of the heat-producing component. An estimated temperature of the heat-producing component is computed based on the time elapsed from when the output level of the switching power supply exceeds the rated output level and the differentiation data. 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subjects	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
title	Switching power supply and method for stopping supply of electricity when electricity of switching power supply exceeds rated electricity
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