Heat dissipation system and method for stablizing the heat dissipation system
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United States of America Patent
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Feb 27, 2018
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N/A
app pub date -
Jul 10, 2017
filing date -
Apr 28, 2017
priority date (Note) -
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Abstract
A heat dissipation system at lease has a first fan module including a first fan and a first fan driving circuit. The first fan driving circuit generates a fan driving signal to drive the first fan. When a control module transmits a stopping signal to the first fan module, the first fan driving circuit decreases a duty cycle of the fan driving signal driving the first fan according to the stopping signal. When the duty cycle of the fan driving signal driving the first fan is less than or equal to a first predetermined duty cycle, within a first working time, the first fan driving circuit decreases the duty cycle of the fan driving signal driving the first fan to zero by subtracting one predetermined duty interval from the duty cycle of the fan driving signal driving the first fan every predetermined working time interval.
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