Efficient Improvement of Driving Circuits for White Light LEDs

This paper briefly reviews several circuits of white light LED driving structure, which includes the voltage regulator and current limiting resistance model, current regulator and current limiting resistance model, multiple current regulator model and inductance boost model. The paper also presents power loss analysis model to realize circuits performance. The analysis models can be used in the pre-driver circuits, which can increase pulse signal drive capability and eliminate the loss of power transistors.