Charging device for charging a supercapacitor

A method for charging a supercapacitor by a charging device, the method comprises:

• sensing, by a sense input of a controller of the charging device, a supercapacitor voltage;
• determining, by the controller, a first target value of the supercapacitor voltage, based on an internal impedance of the supercapacitor and on a nominal supercapacitor voltage;
• wherein the first target value of the supercapacitor voltage exceeds the nominal supercapacitor voltage;
• and
• outputting, during a first phase of a charging process, a control signal via a control output of the controller and to a converter control input of a converter of the charging device, the control signals sets a charging voltage outputted from a converter output of the converter to the supercapacitor, to one or more values that once provided to the supercapacitor cause the supercapacitor voltage to reach, at the end of the first phase of the charging process, the first target value of the supercapacitor voltage;
• wherein the converter is a DC to DC converter;
• wherein the charging device comprises an adjustable voltage divider, wherein the adjustable voltage divider comprises an intermediate node and a voltage divider output port that is electrically coupled to the converter output and wherein the control output is coupled to the intermediate node of the adjustable voltage divider.

A non-transitory computer readable medium for charging a supercapacitor by a charging device, the non-transitory computer readable medium stores instructions for:

• sensing, by a sense input of a controller of the charging device, a supercapacitor voltage;
• determining, by the controller, a first target value of the supercapacitor voltage, based on an internal impedance of the supercapacitor and on a nominal supercapacitor voltage;
• wherein the first target value of the supercapacitor voltage exceeds the nominal supercapacitor voltage;
• and
• outputting, during a first phase of a charging process, a control signal via a control output of the controller and to a converter control input of a converter of the charging device, the control signals sets a charging voltage outputted from a converter output of the converter to the supercapacitor, to one or more values that once provided to the supercapacitor cause the supercapacitor voltage to reach, at the end of the first phase of the charging process, the first target value of the supercapacitor voltage;
• wherein the converter is a DC to DC converter;
• wherein the charging device comprises an adjustable voltage divider, wherein the adjustable voltage divider comprises an intermediate node and a voltage divider output port that is electrically coupled to the converter output and wherein the control output is coupled to the intermediate node of the adjustable voltage divider.