US Patent No. 10,993,292

SYSTEM AND METHOD FOR TUNING AN INDUCTION CIRCUIT


Patent No. 10,993,292
Issue Date April 27, 2021
Title System And Method For Tuning An Induction Circuit
Inventorship Salvatore Baldo, Grotte (IT)
Stefano Moroni, Laveno Mombello (IT)
Davide Parachini, Cassano Magnago (IT)
Cristiano Vito Pastore, Camerio (IT)
Gioacchino Prestigiacomo, Palermo (IT)
Assignee Whirlpool Corporation, Benton Harbor, MI (US)

Claim of US Patent No. 10,993,292

1. An induction cooking system, comprising:a power supply bus;
a plurality of resonant inverters in connection with the power supply bus, each comprising a dedicated resonant capacitor;
at least one bus capacitor in connection with each of the dedicated resonant capacitors and a ground;
a plurality of inductors configured to generate an electromagnetic field in connection with the plurality of resonant inverters;
at least one switch operable to control a plurality of switch configurations comprising a first configuration and a second configuration; and
a tuning capacitor in connection with each of the dedicated resonant capacitors via the at least one switch, wherein the at least one switch is configured to selectively connect the tuning capacitor in parallel with one of the dedicated resonant capacitors in the first configuration and the second configuration.