HEATING CONTROL CIRCUIT AND VENTILATOR
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Dec 26, 2022
filing date -
Dec 26, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A heating control circuit and a ventilator are provided. The heating control circuit includes a control device and a switching device, an input end of the control device being connected to an alternating-current power source, an output end thereof being connected to a control end of the switching device, and an output end of the switching device is connected to a heating member; and the control device is configured to generate, according to different output voltages of the alternating-current power source, a driving signal for controlling a duty ratio of the switch device to adaptively change, so that the power output from the switching device to the heating member is constant.
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