Driving circuit with continuous dimming function for driving light sources

A system comprising:

• a power converter coupled to a power source and a light source and for receiving power from said power source, and operable for providing a regulated power to said light source;
• and
• a dimming controller coupled to said power converter and operable for monitoring a power switch coupled to said power source, and for continuously adjusting said regulated power from said power converter upon detection of a first plurality of operations of said power switch until a second plurality of operations of said power switch are detected, said dimming controller comprising:
• a clock generator operable for generating a clock signal upon detection of said first plurality of operations of said power switch;
• and
• a counter driven by said clock signal for providing a counter value to adjust said regulated power from said power converter.

A method for adjusting power of a light source, comprising:

• powering said light source based on a regulated power from a power converter;
• receiving a dimming request signal indicative of a first plurality of operations of a power switch coupled between a power source and said power converter;
• continuously adjusting said regulated power from said power converter in response to said dimming request signal;
• receiving a dimming termination signal indicative of a second plurality of operations of said power switch;
• and
• stopping adjusting said regulated power from said power converter in response to said dimming termination signal.