System and method for pulse-width modulation using an adjustable comparison criterion

A method of pulse-width modulation, the method comprising:

• receiving a comparison value and a comparison criterion;
• comparing the comparison value to a counter value based on the comparison criterion;
• and
• in response to the comparison value satisfying the comparison criterion with respect to the counter value, sending a control signal to a gate of a first transistor to generate a pulse edge of a pulse of a pulse-width modulated signal.

A system comprising:

• a motor;
• and
• a pulse-width modulation control circuit coupled to the motor and configured to output a pulse-width modulated signal to the motor, the pulse-width modulation control circuit comprising:
• first transistor including a first terminal coupled to a power source and a second terminal coupled to a first input of the motor;
• and
• a signal generator including a first node coupled to a gate of the first transistor, the signal generator configured to:
• receive a set point signal indicating a comparison value and a comparison criterion;
• compare the comparison value to a counter value based on the comparison criterion;
• and
• in response to the comparison value satisfying the comparison criterion with respect to the counter value, send a control signal to the gate of the first transistor to generate a pulse edge of a pulse of the pulse-width modulated signal.