Volt-second integration cable compensation circuit

A converter configured to deliver a source voltage and current to a load via a cable, wherein the cable is anticipated to drop a cable voltage as the load current increases, comprising:

• a regulator having a feedback adjusting transistor configured to gradually compensate for the dropped cable voltage as the load current increases, the transistor having a gate capacitance and external resistance forming an integrator configured to filter a volt-second product of an output waveshape of the converter to derive an average gate voltage correlated to the load current as the load current increases;
• wherein the regulator is configured to increase a gate voltage of the transistor through a threshold region of the transistor and gradually turn the transistor on, the transistor configured to apply an adjusting resistance coupled to a feedback sensing node of the regulator to increase the load voltage.

A regulator configured to regulate a source voltage as a load current is delivered to a load using a cable, comprising:

• a feedback adjusting transistor configured to gradually compensate for dropped cable voltage as the load current increases, the transistor having a gate capacitance and a gate external resistance forming an integrator configured to filter a volt-second product of an output waveshape of the regulator to derive an average voltage correlated to the load current as the load current increases;
• wherein the transistor is a signal-level MOSFET and the regulator is configured to increase a gate voltage of the transistor through a threshold region of the transistor and gradually turn the transistor on, the transistor configured to apply an adjusting resistance coupled to a feedback sensing node of the regulator to increase the source voltage.