Dimming interface for power line

A control circuit for a dimming interface circuit for controlling an electric device, comprising:

• a MOSFET that has a source coupled to a first resistor, a first capacitor, and a switch S2, and a drain coupled to a second resistor;
• wherein the second resistor is excluded from the circuit when the gate is open;
• and
• wherein the second resistor is included in the circuit, in parallel with the first resistor, when the MOSFET is closed.

A method of dimming one or more lamps, comprising:

• providing first and second switchable input power lines L1 and L2, and a neutral power line N;
• closing one of the switchable input power lines L1 or L2 to cause a phototransistor in an interface circuit to turn ON, which causes a MOSFET in a control circuit to be in an open state during which at least one lamp coupled to the control circuit is in a dimmed state;
• and
• closing both of the switchable input power lines L1 and L2 to cause a phototransistor to turn OFF, which causes the MOSFET to be in a closed state during which the at least one lamp is in a full-intensity state.