Circuit with synchronous rectifier for controlling programmable power converter

A circuit for controlling a programmable power converter, comprising:

• a control circuit for generating a programmable voltage-reference signal for the power converter;
• a feedback circuit configured to detect an output voltage of the power converter for generating a feedback signal in accordance with the programmable voltage-reference signal and the output voltage;
• a switching controller for detecting a switching current of a transformer for generating a switching signal configured to switch the transformer for generating the output voltage and an output current of the power converter in accordance with the feedback signal and the switching current of the transformer;
• a synchronous rectifier coupled to the transformer for generating the output voltage of the power converter;
• and
• an opto-coupler for transferring the feedback signal from the control circuit to the switching controller,
• wherein the control circuit is coupled to a secondary side of the transformer;
• the switching controller is coupled to a primary side of the transformer;
• the control circuit generates a driving signal configured to control the synchronous rectifier.