STABLE POWER SUPPLY FOR LIGHTING SYSTEM USING LED

PROBLEM TO BE SOLVED: To provide a system stably supplying power to an LED using a solar energy power generation system dividing and converting timing at which a main battery cannot be charged into a frequency and charging a secondary battery by this timing pulse. SOLUTION: When photovoltaic power g...

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Bibliographische Detailangaben
Hauptverfasser:	MINO KENJI, MINO KOICHI, YAMAMOTO KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a system stably supplying power to an LED using a solar energy power generation system dividing and converting timing at which a main battery cannot be charged into a frequency and charging a secondary battery by this timing pulse. SOLUTION: When photovoltaic power generation voltage reaches a level at which the main battery cannot be charged due to lack of the amount of incident light, the photovoltaic power generation voltage is converted into the frequency, which is converted into pulse width for charging the secondary battery. The system covers insufficient capacity of the main battery if the charge voltage becomes sufficiently high or directly supply power to the LED from the secondary battery if the power supply from the main battery to the LED is deficient. COPYRIGHT: (C)2007,JPO&INPIT