CONTROL DEVICE AND PROGRAM PRODUCT
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United States of America Patent
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Issued Date -
Nov 1, 2018
app pub date -
Jul 5, 2018
filing date -
Mar 21, 2016
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Abstract
The control device includes a control signal supply unit, a frequency changing unit, and a storage unit. The control signal supply unit generates a control signal, and supplies the generated control signal to the switching element. The storage unit stores a frequency table defining a change value of a frequency of the control signal. The frequency changing unit changes the frequency of the control signal every time a predetermined time period elapses, according to the change value defined in the frequency table.
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