OSCILLATOR, METHOD OF OPERATING THE SAME, AND PWM CONTROLLER INCLUDING THE SAME
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United States of America Patent
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May 16, 2019
app pub date -
Nov 15, 2017
filing date -
Nov 15, 2017
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Abstract
An oscillator for a pulse width modulation (PWM) controller includes an oscillation circuit including a capacitor and configured to generate a first pulse signal by charging and discharging the capacitor, a frequency divider configured to generate a second pulse signal based on the first pulse signal, the second pulse signal having a lower frequency than the first pulse signal, and an oscillation control circuit coupled to the oscillation circuit and the frequency divider and configured to generate control signals for holding the charging and discharging of the capacitor during an oscillation holding operation.
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