POWER SUPPLY WITH LOW VOLTAGE PROTECTION AND METHOD OF OPERATING THE SAME
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United States of America Patent
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Issued Date -
May 26, 2016
app pub date -
Oct 20, 2015
filing date -
Oct 20, 2015
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Abstract
A power supply with low voltage protection provides an output voltage. The power supply includes a driving switch and a control unit. The control unit generates a control signal with a duty cycle. The driving switch receives the control signal to drive the output voltage of the power supply. The control unit enables an under-voltage protection mode when the control unit detects that the output voltage is less than a threshold output voltage value and the duty cycle is less than a maximum duty cycle value. The control unit disables the under-voltage protection mode when the control unit detects that the output voltage is less than the threshold output voltage value and the duty cycle reaches to the maximum duty cycle value.
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