Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1998-12-31
2000-12-05
Wong, Don
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315160, G09G 310
Patent
active
061571385
ABSTRACT:
An inverter circuit for a battery operated devices includes an EL device that is driven by the inverter circuit. The inverter circuit preserves battery power by recycling battery current stored in the EL device. A charging circuit charges the EL device to a first voltage level during a charge cycle. A discharge circuit subsequently discharges the battery current stored in the EL device back into the battery.
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Telefonaktiebolaget LM Ericsson
Tran Chuc
Wong Don
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