Frequency-based compensation for power controllers and converters

A circuit comprising:

• an error amplifier configured to provide an error signal at an error amplifier output based on a reference signal and feedback signal;
• an oscillator circuit is configured to provide a clock signal and a frequency signal having a value representative of a frequency of the clock signal;
• and
• a compensation network having a variable capacitance is configured to provide compensation at the error amplifier output based on the frequency signal.

A system comprising:

• an error amplifier including a reference input, a feedback input, and an error output;
• a compensation network having a frequency input and a compensation output, in which the compensation output is coupled to the error output, the compensation network configured to provide a variable capacitance between the compensation output and a ground terminal based on a frequency signal at the frequency input having a value representative of a frequency of a clock signal;
• an oscillator circuit including a clock output and frequency output, in which the frequency output is coupled to the frequency input;
• and
• a calibration circuit having a clock input, a compensation input, and first and second current outputs, in which the clock input is coupled to the clock output, the compensation input is coupled to the compensation output, and the first and second current outputs are coupled to respective inputs of the error amplifier.