Power conservation and management system for a self-powered elec

Details Power conservation and management system for a self-powered elec Power conservation and management system for a self-powered elec

1998-03-20

1999-04-20

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Capacitor charging or discharging

70280, H02J 700

Patent

active

058960260

ABSTRACT:
The charge on a capacitor is supplied by a manual generator in a self-powered lock. The capacitor retains a reduced level charge after completion of the operation of the electronic lock controls that may serve as a capacitor pre-charge. The pre-charge reduces the amount of manual input to the generator required. The drain of the electronic control circuitry on the capacitor is disconnected responsive to a microprocessor command at the completion of microprocessor operations. The disconnection may occur at a higher level of charge voltage on the capacitor when the control is from the microprocessor without having to wait for charge decay to reach a disconnect or power down level based on charge voltage level.

REFERENCES:
patent: 3733861 (1973-05-01), Lester
patent: 3978376 (1976-08-01), Wilson
patent: 5647235 (1997-07-01), Clark et al.

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