Christopher A Townsend

US Patent:

20220373225, Nov 24, 2022

Filed:

May 19, 2021

Appl. No.:

17/324711

Inventors:

- Milwaukee WI, US
Christopher Glynne Townsend - Chandler AZ, US
Ray O. Knoeppel - Hartland WI, US
Brian T. Branecky - Oconomowoc WI, US
Kedar D. Dimble - Milwaukee WI, US

International Classification:

F24H 9/00

Abstract:

A water heater includes a tank configured to hold a fluid, a sacrificial anode located within the tank, and a controller coupled to the sacrificial anode. The controller is configured to selectively complete and break an electrical circuit connecting the tank and the sacrificial anode. The controller is also configured to measure a shorted anode current through the electrical circuit, to determine a modulation duty cycle based on a current setpoint and the measured shorted anode current, and to repeatedly complete and break the electrical circuit using the modulation duty cycle.