摘要 |
When the bit number of an error signal ERR2 is n and the magnitude of the error signal ERR2 is "a" (a is an integer) in decimal notation, a pulse-width modulator generates a PWM signal Spwm as a set of k (k is an integer of 2 or more) continuous sub-pulses. Further, the pulse-width modulator generates k sub-pulses in such a manner that the average value of the duty ratios of the sub-pulses becomes approximately a/2n.
|