NEON LAMP DRIVING DEVICE

PROBLEM TO BE SOLVED: To make it possible to use a neon lamp over a long period of time even if it has a short flashing cycle by driving the neon lamp by the on-control of a transistor. SOLUTION: First, a resistor 4e connected to a microcomputer 1 and a photodiode 2a of a photocoupler 2 are driven a...

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Bibliographische Detailangaben
Hauptverfasser:	KOJIMA MASAKUNI, HOSHINO MIE
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To make it possible to use a neon lamp over a long period of time even if it has a short flashing cycle by driving the neon lamp by the on-control of a transistor. SOLUTION: First, a resistor 4e connected to a microcomputer 1 and a photodiode 2a of a photocoupler 2 are driven and thereby a photo transistor 2b comes to an on-state. When the photo transistor 2b comes to an on-state, base current of a transistor 7 flows and then a transistor 7 comes to a continity-state' and thereby a neon lamp 3 lights up, diodes 5a-5d full-wave rectify AC voltage from an AC commercial power supply 10. The resistor 4a limits the current in the neon lamp 3 and thereby protects the neon lamp 3. In this manner, the neon lamp 3 can be driven without installing a circuit for controlling a contact such as a relay and a TRIAC.