Diodes Incorporated – Offline PFC controller features low stand-by power consumption

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Diodes Incorporated has introduced the AL1788 high-performance AC-DC constant-voltage and Power Factor Correction (PFC) controller. Offering a combination of high PFC, low Total Harmonic Distortion (THD) and low stand-by power, it is well suited to use in commercial applications and connected lighting. Based on a platform that supports both flyback and buck topologies, the AL1788 […]

Lumileds – Upgraded CoB LEDs offer high efficacy for high-bay and low-bay, outdoor and spotlight applications

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Lumileds has extended its successful LUXEON CoB Core Range with a fourth-generation product. Benefitting from Lumileds’ proprietary phosphor development, this new product can offer efficacy of 170lm/W, some 5% better than competitive products. The company is able to offer the LUXEON CoB Core Range Gen 4 in a very wide portfolio of products with options […]

Nexperia – LED driver design techniques

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The replacement of incandescent and halogen lighting by LEDs is driven by various advantages of LED lighting devices, such as: • Higher luminous efficiency • Smaller size • Faster turn on/off times • Shock resistance • Longer lifetime • Fixed colour Disadvantages also exist: • Higher initial costs, although the price difference continues to shrink […]

Nichia – Launch of white LED that offers ultra-high CRI

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To improve the quality of light in a new generation of demanding lighting applications, Nichia has developed a family of white LEDs named OptisolisTM which offers ultra-high Colour Rendering Index (CRI) values. The light output from the Optisolis range of LEDs has the closest possible match to that of natural light. The Optisolis LEDs are […]

Nichia – New DMC package enables tighter spacing of LEDs in high-flux designs

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The NVSW/LE21AT from Nichia is a series of white LEDs which uses a new Direct Mountable Chip (DMC) package design to produce higher flux density than conventional chip-scale LEDs, particularly in board designs which are tightly populated with emitters. The higher flux density is the result of the lower optical losses sustained by the DMC […]

OSRAM – New range of 24V DALI LED drivers for tunable white lighting applications

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OSRAM has introduced a series of 24V DALI drivers which offers a constant-voltage output for use in tunable white lighting applications. The OTi DALI drivers produce flicker-free light. They have a particularly small cross-section of only 32mm x 22mm, and support dimming down to 0.1%. These LED DALI drivers can be used with various control […]

STMicroelectronics – 16-channel driver suitable for LED panel displays

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The LED1642GW is a monolithic, low-power 16-bit shift register for LED panel displays. The LED1642GW can provide a 20V output to drive LEDs, and enables the user to connect several LEDs in series. In the output stage, 16 regulated current sources provide a constant current which can range between 3mA and 40mA to drive the […]

STMicroelectronics – Smart home lighting demo board provides RF connection to wireless sensors and controllers

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STMicroelectronics’ STEVAL-ILL082V1 evaluation board is a demonstration design for smart home LED lighting that needs a wireless connection to other devices such as a home automation controller. The main elements of the STEVAL-ILL082V1 board are the HVLED815PF offline LED driver and the SPSGRF-868, a low-power programmable RF transceiver module operating at a frequency of 868MHz. […]

STMicroelectronics – Switching regulator provides up to 3A to power high-brightness LEDs

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STMicroelectronics’ LED6000 is a stepdown monolithic switching regulator which sources up to 3A DC current for driving high-brightness LEDs. The LED6000 supports digital dimming, which is implemented by driving the dedicated Dim pin. The device’s sense resistor for current sensing causes a small voltage drop of just 250mV, helping to sustain high system efficiency. The […]

TE Connectivity – Holder provides electrical and thermal connection for CoB LEDs

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TE Connectivity’s (TE) LUMAWISE drive LED holder type Z50 allows luminaire designers to eliminate discrete driver boxes from spotlight and tracklight designs, creating a more aesthetically pleasing solution while reducing system costs. The LUMAWISE drive type Z50 brings integrated driver functionality to TE’s Zhaga-inspired, Z50 range of LED holders. Incorporating a DC-DC converter into the […]