Method to recover from current loop instability after cycle by cycle current limit intervention in peak current mode control

A switching regulator, comprising:

• a switching circuit configured to receive an input and including a switching element coupled to an electrical component, the switching element configured to control generation of an output based on a drive signal;
• a control circuit coupled to the switching circuit, the control circuit configured to detect signal-limit events indicating a maximum signal threshold has been exceeded in relation to a signal of the electrical component, and configured to adjust a value of a compensation signal in response to the detected signal-limit events, the compensation signal defining a duty cycle of the switching regulator and the control circuit further configured to detect a time for which no signal-limit events have been detected and to adjust the value of the compensation signal to increase the duty cycle of the switching regulator in response to the detected time exceeding a time step threshold;
• and
• a drive circuit coupled to the switching circuit and to the control circuit, the drive circuit configured to generate the drive signal based on the compensation signal.

A switching voltage regulator, comprising:

• a switching circuit configured to receive an input voltage and including a switching element coupled to an inductive element, the switching element configured to control generation of an output voltage in response to a drive signal;
• a control circuit coupled to the switching circuit, the control circuit configured to detect current-limit events indicating a maximum current threshold has been exceeded in relation to a current through the inductive element, and configured to adjust a value of a compensation voltage in response to the detected current-limit events, the compensation voltage defining a duty cycle of the switching voltage regulator and the control circuit further configured to detect a time for which no current-limit events have been detected and to adjust the value of the compensation voltage to increase the duty cycle of the switching voltage regulator in response to the detected time exceeding a time step threshold;
• and
• a drive circuit coupled to the switching circuit and to the control circuit, the drive circuit configured to generate the drive signal based on the compensation voltage.