Adaptive loading techniques to avoid negative voltage slope and output overshoot during system start-up

A system comprising;

• an LLC converter circuit;
• and
• an LLC control circuit, the circuit comprising:
• a time controlled oscillator (TCO), configured to output a control signal comprising a TCO frequency, wherein:
• the TCO frequency is configured to progressively decrease over time until the TCO frequency reaches a predetermined TCO frequency threshold;
• and
• a TCO compensation circuit including a feedback input element,
• wherein the feedback input element receives a voltage feedback signal,
• wherein the TCO compensation circuit is configured to adjust a frequency slope of the TCO frequency of the control signal such that the voltage feedback signal decreases approximately linearly.

A method comprising:

• receiving, by a switched mode power supply (SMPS) control circuit, a voltage feedback signal;
• outputting a control signal, by the SMPS control circuit,
• wherein the control signal is generated by a time controlled oscillator (TCO),
• wherein the control signal comprises a TCO frequency configured to progressively decrease over time until the TCO frequency reaches a predetermined TCO frequency threshold;
• adjusting, by the SMPS control circuit, the TCO frequency of the control signal such that the voltage feedback signal decreases approximately linearly.