Power controller for a door lock and method of conserving power
AssigneeHanchett Entry Systems, Inc.
InventorsRandall Shaffer, David Corbin
Life of this patent
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AssigneeHanchett Entry Systems, Inc.
InventorsRandall Shaffer, David Corbin
Estimating the term…
A power control system for use with an electric lock mechanism including an actuator having a coil with a particular coil impedance. The power control system comprises a power supply configured to provide an output voltage having a drive current to the actuator, a credential device powered by the power supply and configured to signal the power supply to provide the output voltage upon receiving an authorized access code, an actuator driver including a multiple-gain current-sensing circuit, and a microcontroller configured to monitor and control the power supply, credential device, actuator driver, and actuator, and determine the impedance of the coil. The microcontroller is populated by a look-up table having performance data for a plurality of coils such that the microcontroller selects a duty ratio to establish the optimum magnitude of drive current to the coil based only on the determined impedance of the coil.
A power control system for use with a first electric lock mechanism having a first actuator, and a second electric lock mechanism having a second actuator, said power control system comprising:
A method of supplying a pick current and a hold current to a plurality of actuator devices using a microcontroller, said method comprising the steps of:
Dependencies are inferred from the claim text.