Surge lock power controller

Details Surge lock power controller Surge lock power controller

1991-01-18

1993-04-27

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

307 66, 361172, E05B 4702

Patent

active

052067823

ABSTRACT:
A power controller for electric locks which draw large startup current surges which controls and manages the energy of a pair of storage batteries to reliably operate such electric locks and provide steady-state power to auxiliary system components both with AC power present and in the absence thereof, so long as the stored charge in the batteries is able, to thereafter maintain a steady source of power to the system as long as possible, and to be self-starting upon the return of AC power, all without ever placing the electric locks in a partially unlocked or "hung" state. The two storage batteries are normally maintained charged through an AC power source, and both cooperate to provide the surge power. On loss of AC power, both still provide surge power so long as one can maintain the steady state power, and thereafter the other battery alone provides surge power so long as possible. On restart from a batteries discharged condition, surge power demand is tested periodically and immediately terminated when inadequate, thereby having minimal effect on the charging rate of the batteries.

REFERENCES:
patent: 4386308 (1983-05-01), Emile, Jr. et al.
patent: 4967305 (1990-10-01), Murrer et al.

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