Voltage converter with loop control

A controller for a voltage converter system having a switch configured to switch between first and second states responsive to a first control signal, the controller comprising:

• timer circuitry configured to generate a timing signal representing a duration of the first state based on input and output voltages of the voltage converter system;
• control logic coupled to the timer circuitry and adapted to be coupled to the switch, and configured to generate the first control signal based on a second control signal, in which the second control signal is based on a feedback voltage and a reference voltage;
• and
• timer control circuitry coupled to the control logic and the timer circuitry, and configured to:
• detect a phase difference between the first control signal and the second control signal;
• and adjust the timer circuitry to change the duration based on the phase difference.