LOW-LIGHT SOLAR BOOST CONVERTER AND CONTROL METHOD THEREFOR
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United States of America Patent
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Issued Date -
Dec 31, 2015
app pub date -
Jun 27, 2014
filing date -
Jun 27, 2014
priority date (Note) -
Abandoned
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Abstract
The present disclosure provides a low-light solar boost converter and a control method therefore. The control method comprises the boost converter starting to operate in a PWM mode; determining whether the voltage of the input terminal is larger than a reference input voltage, the boost converter operating in the PWM mode when the voltage of the input terminal is larger than the reference input voltage, otherwise the boost converter operating in a burst mode, wherein a burst time period of the burst mode increases when the voltage of the input terminal decreases; during the burst mode determining whether the voltage of the output terminal is less than a first preset output voltage, the boost converter operating in the PWM mode when the voltage of the output terminal is less than the first preset output voltage, otherwise the boost converter operating in the burst mode.
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