New LED Driver Design from Power Integrations Maximizes Efficiency of Compact B10, GU10, E17 and A19 Bulbs
Power Integrations, maker of the world's most efficient, longest-lasting off-line LED driver ICs, today published a reference design (DER-297) describing a high-efficiency, ultra-compact driver for a B10-style LED light bulb. Based on Power Integrations' LinkSwitch-PL non-isolated, single-stage LED driver IC, the power supply is specifically tailored for use with high-voltage LEDs such as the recently announced XLamp XM-L and XLamp XT-E ranges from Cree. DER-297 provides the high-voltage output ...
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A Material to Revolutionize Electronics - Small Transistors, LEDs and Solar Cells
A discovery made at EPFL could play an important role in electronics, allowing us to make transistors that are smaller and more energy efficient. Research carried out in the Laboratory of Nanoscale Electronics and Structures (LANES) has revealed that molybdenite, or MoS2, is a very effective semiconductor. This mineral, which is abundant in nature, is often used as an element in steel alloys or as an additive in lubricants. But it had not yet been extensively studied for use in electronics.
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Power Integrations Introduces Reference Design for 5 W LED Lamps with PFC and Flicker-Free TRIAC Dimming
Power Integrations, the leader in high-voltage integrated circuits for energy-efficient solid-state lighting, today announced a new reference design (RDK-251) for a 5-watt offline LED driver that includes flicker-free TRIAC dimming and single-stage power factor correction (PFC). The reference design is based on Power Integrations' LNK457DG, a member of the innovative LinkSwitch-PL family of LED driver ICs optimized for compact, non-isolated installations.
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MIT Study: Significant Energy Savings through User-Controlled Efficient Lighting Systems
These days, in newer buildings it’s often hard even to find a plain old-fashioned light switch. Often, the only controls are automatic motion-detector switches that turn off lights when people have left a room — or when they sit too still — or else daunting control panels with arrays of sliders and buttons. But some researchers at the MIT Media Lab are aiming to put the controls back in people’s hands, in a way that provides sophisticated and continuous control and could slash lighting bills by ...
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Power Integrations' Design Ideas Target Wasteful Incandescent Bulbs and Enable High Efficacy LED Street Lights
Power Integrations (NASDAQ:POWI), the leader in high-voltage analog integrated circuits for power conversion, today announced three new Design Ideas at the Strategies In Light Exhibition and Conference, designed to make implementing LED lighting faster, simpler and more efficient.
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Off-Line LED Control Circuit
Resonant mode topologies offer many benefits over traditional buck, boost and flyback solutions. These include soft-switching, higher operating frequencies, higher power density and higher efficiency. Electronic ballast designs for fluorescent lighting applications have already been taking advantage of these benefits for many decades. Much can be learned from electronic ballast circuits and applied to LED driver circuits. This article compares the load requirements for fluorescent lamps and ...
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Electrical Considerations of LED Bulbs
Governments all over the world regulated the future use of the inefficient incandescent lamps. For example, the member states of the European Union agreed to a phasing out of incandescent lamps by 2012. The initial European-wide ban applies the first step to “nondirectional” light bulbs. The first types of bulbs to be banned are frosted (non-clear) bulbs and clear bulbs over 100 W, which will be phased out completely by September 2009. The power limit will be moved down to lower wattages, and ...
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