POWER CONVERTER HAVING CHARGE PUMP FREQUENCY SWITCHING CONTROL MECHANISM
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
Aug 1, 2023
filing date -
Aug 1, 2023
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Abstract
A power converter having a charge pump frequency switching control mechanism is provided. In the power converter, frequencies of a plurality of pulse waves of a clock signal are determined, according to a level of a high-side control signal outputted to a control terminal of a high-side switch from a control circuit or a voltage of the control terminal (and a voltage of a second terminal) of the high-side switch. In the power converter, a charge pump supplies power to a high-side driver circuit at the frequencies of the clock signal, and the high-side driver circuit uses the power from the charge pump to drive the high-side switch and to pull up the voltage of the control terminal of the high-side switch.
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