Patent ID: 11909204
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A load control system for controlling a plurality of electrical loads, the load control system comprising:
a direct-current (DC) power bus configured to be electrically coupled to a DC power supply, wherein the DC power supply is configured to generate a DC bus voltage on the DC power bus;
a plurality of load control devices configured to be coupled in parallel with each other across the DC power bus, wherein each load control device comprises:
a power connector configured to receive the DC bus voltage from the DC power bus;
an internal energy storage element configured to charge from the DC bus voltage;
an internal power supply configured to conduct current from the internal energy storage element and generate a supply voltage;
a load control circuit configured to receive the supply voltage and control power delivered to an electrical load; and
a control circuit configured to:
control the load control circuit for controlling the power delivered to the electrical load;
control when the internal energy storage element charges from the DC bus voltage;
send an indication of a storage level of the internal energy storage element;
receive an indication of a storage level of an internal energy storage element of a second load control device of the plurality of load control devices; and
determine to charge the internal energy storage element from the DC power bus based on a comparison between the storage level of the internal energy storage element and the received storage level of the internal energy storage element of the second load control device.