US Patent No. 11,116,065


Patent No. 11,116,065
Issue Date September 07, 2021
Title Ground Leakage Current Power Supply
Inventorship Jeffrey G. Reh, Longmont, CO (US)
Assignee Fabriq, Ltd., Boulder, CO (US)

Claim of US Patent No. 11,116,065

1. A ground leakage current power supply, comprising:a hot node that is coupled to a hot wire of an AC power source, and an earth ground node that is coupled to an earth ground, wherein a neutral wire of said AC power source is not present;
an energy storage component, coupled to a return node and coupled in series to a current limiter that is coupled to receive rectified power from said AC power source, wherein said current limiter enables said energy storage component to charge to a voltage value at a rate that limits ground leakage current to a prescribed leakage value; and
a low voltage power supply comprising a linear voltage regulator, coupled to said energy storage component and to a return node, said return node providing a return reference voltage, and configured to receive said voltage value, and configured generate a regulated output voltage that is referenced to said return reference voltage.