Method to reduce electromagnetic interference in switching circuit applications

A method for providing electromagnetic compatibility to a motor control circuit, comprising:

• selecting a base pulse width modulated signal (BPWM) to apply to a motor control circuit, the base pulse width modulated comprising a duty cycle for controlling a motor affiliated with the motor control circuit;
• inputting sensed system conditions;
• selecting a hopping frequency and a hopping amplitude of an electro magnetic compatibility management signal based on the sensed system conditions;
• and
• overlaying the hopping frequency and the hopping amplitude on to the base pulse width modulated signal to create a control pulse width modulated signal (CPWMS),
• wherein the hopping frequency dithers the frequency of the control pulse width modulated signal, and
• wherein the hopping amplitude restricts the amplitude of the frequency dither.