Current fed inverter with pulse regulator for electric induction heating, melting and stirring
AssigneeInductotherm Corp.
InventorsOleg S. Fishman, John H. Mortimer, Mike Maochang Cao
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AssigneeInductotherm Corp.
InventorsOleg S. Fishman, John H. Mortimer, Mike Maochang Cao
Estimating the term…
A current fed inverter with duty cycle regulation of dc current to the input of the inverter is provided to increase the magnitude of inverter output power while operating a resonant load at resonant frequency. The regulator duty cycle period is synchronized to the period of the output current of the inverter so that there are two regulator periods for each single output current period of the inverter. Duty cycle regulation may be provided by a single pulse in the regulator period, or a series of pulses in the regulator period. Output power magnitude greater than that available at full duty cycle can be provided by operating the inverter at off resonance. Multiple current fed inverters may be connected to individual coil sections around a crucible and selectively interconnected for a heating or melting mode, or a stir mode.
A power supply for an at least one RLC resonant load, the power supply comprising:
A method of supplying power to an at least one RLC resonant load, the method comprising the steps of:
Dependencies are inferred from the claim text.