Dynamic output power management for electronic smoking device

An electronic smoking device comprising:

• an atomizer including an electrical resistance heating element;
• a power source connected to the heating element and to a dynamic output power management system including:
• a reference element having a substantially constant resistance;
• a second switching element operable to change from a first state to a second state to connect the reference element to the heating circuit and from the second state to the first state to disconnect the reference element from the heating circuit;
• and
• a power management unit, comprising
• at least one voltage detection device to detect an output voltage of
• a power source, and/or a voltage drop across the reference element, and/or a voltage drop across the heating element;
• and
• a controller configured to
• change the second switching element from the first state to the second state;
• receive a first detection result from the detection device;
• derive a resistance of a heating element in the heating circuit;
• change the second switching element from the second state to the first state;
• receive a second detection result from the voltage detection device;
• and
• derive an active time of the heating circuit as a function of the resistance of the heating element and the second
• detection result such that an energy converted by the heating element in a period of time is substantially identical to a predetermined energy conversion value for a same period of time.