This paper proposes a nonisolated single-stage electronic system for driving power LEDs
using the charge-pump and valley-fill concepts. Both concepts are related to the topological …

This paper proposes a novel light-emitting diode (LED) driver consisting of a buck-boost
converter and a buck converter. Each converter adopts a power MOSFET as the active …

In order to match the main features of LED lighting source and further save power, the power
supply for LEDs also requires long life while maintaining high efficiency, high power factor …

This work presents a promising approach for driving multi-color RGBW high current LEDs for
general lighting. Based on a DC input voltage, the applied topology correlates on a DC-DC …

This paper proposes a single-stage light-emitting diode (LED) driver based on an inverted
buck topology, using current path control switches. The proposed circuit consists of a control …

In this paper, a novel valley-fill single-stage boost-forward LED driver is presented, where
the valley-fill circuit is modified by adding a range-selection switch. The switch is manually …

A two-phase driving approach for light-emitting-diode (LED) applications is proposed in this
paper. In the approach, two rectangular AC sources are employed so that the output current …

A novel single-switch single-stage high power factor LED driver is proposed by integrating a
flyback converter, a buck–boost converter and a current balance circuit. Only an active …

In view of some applications for red green blue (RGB) light‐emitting diodes (LEDs), a
modular multi‐channel constant‐current LED driver is getting more important to obtain …

In two-channel light-emitting diode (LED) driver, capacitive-current-balancing method is the
simplest and the most effective way to equally balance the current in each channel due to its …