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US 9,326,333 B2Granted
Flyback driver for use in a flyback power converter and related method
AssigneeInfineon Technologies Americas Corp.
InventorsPeter B. Green, Dana Wilhelm
Life of this patent
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AssigneeInfineon Technologies Americas Corp.
InventorsPeter B. Green, Dana Wilhelm
Estimating the term…
According to one embodiment, a flyback power converter comprises a primary circuit including a flyback driver, and an isolated output circuit responsive to the primary circuit. The isolated output circuit is used to power a load. The flyback driver is configured to identify a load current in the isolated output circuit from an input power to the primary circuit, and to regulate the load current according to the input power. In one embodiment, the flyback driver is configured to sense an input voltage to the flyback power converter, to identify an average current value corresponding to a current through a converter switch in the primary circuit, and to multiply the average current value and the input voltage to determine the input power to the primary circuit.
A flyback power converter comprising:
A flyback driver in a primary circuit including a flyback inductor and configured for use in a flyback power converter, said flyback driver coupled to a high voltage rail of said primary circuit, said flyback driver configured to receive power from an auxiliary winding of said flyback inductor, to identify a load current in an isolated output circuit, including an isolated output inductor responsive to said primary circuit, according to an input power to said primary circuit of said flyback power converter, and to regulate said load current according to said input power.
A method for use in a flyback power converter, said method comprising:
Dependencies are inferred from the claim text.