To realize highly accurate and stable anti-jitter characteristic of a PWM control circuit apparatus, by providing in it switching elements for outputting therefrom the control signals of a motor through inputting thereinto the control signals fed from the control circuit of its output elements.

This apparatus has a reset circuit formed out of an NPN transistor 121 connected in parallel with a capacitor C1 and has a triangular-wave reset circuit 103. Such a triangular-wave signal S11 can be generated from a triangular-wave generating circuit 102 that when performing the ON/OFF control of the NPN transistor 121, L-side switching elements 114-116 are changed over and every timing of the changeover thereof, the capacitor C1 is forcedly discharged and repeatedly charged. Also, synchronizing this triangular-wave signal S11 with an output signal S12 generated based on phase signals S7-S9, the ON and OFF times of a PWM signal S13 are made to coincide with each other to make also possible the coincidence of its ON timing with its OFF timing. Thereby, the highly accurate and stable anti-jitter characteristic of this apparatus can be obtained.