OVERCHARGE PREVENTING CIRCUIT OF STORAGE BATTERY FOR SOLAR CELL

PURPOSE:To provide an overcharge preventing circuit having a circuit configuration in which a short-circuit at the time of operating to prevent overcharge does not affect influence to sensing of a sunset in a structure for preventing overcharge by a short-circuit between terminals of a solar bell. C...

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Bibliographische Detailangaben
1. Verfasser:	SHIRAISHI TOMOO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROLLING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION PHYSICS REGULATING SEMICONDUCTOR DEVICES SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PURPOSE:To provide an overcharge preventing circuit having a circuit configuration in which a short-circuit at the time of operating to prevent overcharge does not affect influence to sensing of a sunset in a structure for preventing overcharge by a short-circuit between terminals of a solar bell. CONSTITUTION:The overcharge preventing circuit of a storage battery for a solar cell comprises a diode disposed between the solar cell 1 and the battery 6 and connected at its anode to a terminal of a high potential side of the cell 1 and at its cathode to a terminal of a low potential side of the cell through a switch 4, a resistor 3 connected in parallel with the diode, and means for controlling switching of the switch 4. Control means 7 so controls the switch 4 as to close it when a voltage (Vref1) at which the battery 6 becomes overcharged is reached and as to open the switch 4 when a terminal voltage of the resistor 3 is a set value or less (Vref2).