US Patent No. 10,602,574

DRIVER CIRCUITS WITH MULTIPLE RECTIFIERS


Patent No. 10,602,574
Issue Date March 24, 2020
Title Driver Circuits With Multiple Rectifiers
Inventorship Isaac Ananda Barbosa, Albuquerque, NM (US)
Assignee

Claim of US Patent No. 10,602,574

1. An enclosure comprising:one or more doors that, when closed, seal the enclosure;
at least one compartment that is sealed when the one or more doors are closed;
a storage device configured to store a substance for sustaining one or more living things;
a dispenser configured to dispense the substance into the at least one compartment at a predetermined rate;
a power unit comprising:
a first full bridge rectifier configured to receive power from an alternating current (AC) power source, the first full bridge rectifier having direct current (DC) output nodes;
a second full bridge rectifier configured to receive power from the AC power source, the second full bridge rectifier having DC output nodes, wherein the second full bridge rectifier is coupled to receive AC power in series with the first full bridge rectifier;
a first set of light emitting diodes coupled to the DC output nodes of the first full bridge rectifier; and
a second set of light emitting diodes coupled to the DC output nodes of the second full bridge rectifier; and
a control unit configured to control switching elements to selectively power on and power off different AC loads of the enclosure while the power unit remains powered on;
wherein each of the switching elements is configured to couple a corresponding AC load in series with the first full bridge rectifier and the second full bridge rectifier of the power unit; and
wherein at least one of the first set of light emitting diodes or the second set of light emitting diodes is configured to provide light within the compartment.