Based on a survey on over 1400 commercial LED drivers and a literature review, a range of
LED driver topologies are classified according to their applications, power ratings …

Manufacturers want high power density for the on-board battery chargers of plug-in hybrid
electric vehicles. Wide bandgap devices can be used to shrink other passive components by …

The electrolytic capacitor is the key component that limits the operating lifetime of LED
drivers. If an ac–dc LED driver with power factor correction (PFC) control is allowed to output …

While LEDs enjoy relatively long lifetime up to 10 years, the lifetime of traditional LED drivers
using electrolytic capacitor as storage element is limited to typically less than 5 years. In this …

LED technology is a multidisciplinary subject that involves semiconductor physics,
photometry, electric power, heat, and chromaticity. It has been demonstrated that operating …

This paper describes a patent-pending passive offline light-emitting diode (LED) driver that
has no controlled semiconductor switches, electrolytic capacitors, auxiliary power supply …

In this paper, a new method is proposed to eliminate electrolytic capacitors in a two-stage ac-
dc light-emitting diode (LED) driver. DC-biased sinusoidal or square-wave LED driving …

This paper introduces techniques to reduce energy storage in off-line light-emitting diode
(LED) drivers. Rather than targeting the ideals of unity input power factor (PF) and constant …

This paper presents a new control method and a detailed project methodology for the
optimized connection method of two converters, aiming to reduce the redundant power …

In this paper, a bidirectional dc-dc converter is proposed for the automotive engine/battery
hybrid power generators. The two-stage bidirectional converter employing a fixed-frequency …