Patent ID: 11881775
Assignee: MICROCHIP TECHNOLOGY INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method comprising:
generating, by a switching circuit, a low supply voltage having a low supply voltage magnitude at a first output node of a power converter by selectively providing an input voltage to a switching node at a switching frequency to establish a charging cycle and a discharging cycle based upon a modulated control signal;
charging a capacitor of an input voltage cancellation circuit during the charging cycle to establish a bias on the capacitor of the input voltage cancellation circuit equal to the input voltage and maintaining the bias on the capacitor input voltage cancellation circuit during the discharging cycle to cancel, by the input voltage cancellation circuit, the input voltage selectively provided to the switching node by the switching circuit such that the switching node swings by an amount which is independent of an amplitude of the input voltage; and
generating, by a boost circuit, a high supply voltage having a high supply voltage magnitude at a second output node of the power converter, wherein the high supply voltage magnitude is a multiple of the low supply voltage magnitude.