Adaptive characterization process for induction cooktop system
AssigneeWhirlpool Corporation
InventorsConstantin Clipca, Andrea Gallivanoni, Mario Barbati, Salvatore Baldo
Life of this patent
Estimating the term…
Abstract
A method for estimating coil current for an inductive cooking appliance may include receiving a multiplicity of measured voltage drops for each of a predetermined inverter period across a shunt resistor arranged on a low side of an inverter, extract at least one of a root mean square (RMS) and a peak voltage for the multiplicity of voltage drops received during a predetermined inverter period, and determine a coil current based on the extracted at least one of the RMS and peak voltages.
Claims20
A method for estimating coil current for an inductive cooking appliance, comprising:
- receiving a multiplicity of measured voltage drops for each of a predetermined inverter period across a shunt resistor arranged on a low side of an inverter;
- extract at least one of a root mean square (RMS) and a peak voltage for the multiplicity of voltage drops received during a predetermined inverter period;
- and
- determine a coil current based on the extracted at least one of the RMS and peak voltages.
A system for estimating coil current for an inductive cooking appliance, comprising:
- an inverter having a high side and a low side;
- a shunt resistor arranged on a low sides of the inverter;
- a resonant tank connected to the inverter;
- a controller programmed to
- receive a multiplicity of measured voltage drops for each of a predetermined inverter period time slot across a shunt resistor arranged on a low side of an inverter;
- extract at least one of a root mean square (RMS) and a peak voltage for the multiplicity of voltage drops received during a predetermined inverter period each received voltage drop;
- and
- determine a coil current based on the extracted at least one of the RMS and peak voltages.
Dependencies are inferred from the claim text.