A circuit for reducing the amount of instability in a pulse width modualtion circuit by providing a minimum amount of overdrive after the crossover point between a ramp and a voltage threshold level, and a constant amount of discharge time between the end on one ramp and the beginning of the next. Also,...http://www.google.fr/patents/US5379321?utm_source=gb-gplus-shareBrevet US5379321 - High speed PWM without linearity compromise at extreme duty cycles
High speed PWM without linearity compromise at extreme duty cycles
