Signal lines arrive at comparator, where they are compared with the intersection occurs/disappears (or becomes negative) signal at the output of the PWM.
Signals supplied to the comparator where they are compared, and at their intersection arises / disappears (or becomes negative) at the output of the PWM signal.
Cигналы arrive to the comparator, where they are compared, and when the intersection occurs / disappears or becomes negative) signal at the output of the pwm.