FREQUENCY CONTROL METHOD AND FREQUENCY CONTROL CIRCUIT FOR PULSE SIGNAL

摘要

PROBLEM TO BE SOLVED: To match a real operating time with a preset operating time.

SOLUTION: In the frequency control method for a pulse signal for outputting all the preset number of pulses by increasing the frequency of a pulse signal from a preset initiation value, decreasing the frequency to the initiation value in the same ratio as increase from the initiation value just after the end of increase and recovering the frequency, a time point outputting 1/2 pulses in all the pulses is defined as a switching time point T to switch the frequency change of the pulse signal from increase to decrease.

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