Patent ID: 11863069
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. The switching converter controller of claim 1, wherein the reference signal is the clock signal and the stopband controller includes:
an oscillator having an oscillator output, the oscillator configured to provide a reference clock signal to the oscillator output;
a frequency counter having first frequency counter input, a second frequency counter input, and a frequency counter output, the first frequency counter input coupled to the oscillator output, the second frequency counter input coupled to the stopband controller input, and the frequency counter is configured to provide a frequency value at the frequency counter output responsive to the reference clock signal and the clock signal; and
stopband detection logic having a stopband detection logic input and a stopband detection logic output, the stopband detection logic input coupled to the frequency counter output, the stopband detection logic output coupled to the stopband controller output, and the stopband detection logic configured to provide the stopband detected signal to the stopband detection logic output responsive to a comparison of the frequency value with a predetermined stopband indicating the frequency value is within the predetermined stopband.