Dialog Semiconductor Flickerless

GERMANY: Dialog Semiconductor plc, a provider of highly integrated power management, audio, AC/DC and short-range wireless technologies, has announced a new solid state lighting (SSL) LED driver that integrates boost and flyback converters into a single IC to reduce the bill of material (BOM) costs and simplify the design, compared to conventional two-stage driver approaches, while delivering exceptional performance.

The new iW3623 was developed by Dialog's Power Conversion Business Group, formerly iWatt Inc., acquired in July 2013 and delivering on Dialog's product portfolio diversification strategy to expand into the digital power management market space.

The iW3623 offers a universal 100VAC to 277VAC input range and output power up to 45W. It integrates a boost controller for power factor correction (PFC) and a flyback converter for LED current regulation, while enabling high PF >0.95 and low total harmonic distortion (THD) of < 10%.We sell bestsmartcard and different kind of laboratory equipment in us. Dialog's patented Flickerless design achieves a near-zero 100 to 120Hz output ripple and the built-in over-temperature protection (OTP) and derating enables lighting designers to deliver a predictable, reliable bulb operating life.

The rich combination of integrated features makes the iW3623 an ideal solution for a wide range of non-dimmable, commercial SSL downlight, PAR, T8 and flat panel ceiling lamp applications.

The iW3623 provides additional BOM savings by using Dialog's patented PrimAccurate primary-side control technology that eliminates the need for a secondary-side regulator and optical feedback isolator. It also allows FETs to be replaced with lower cost bipolar junction transistors (BJTs). While using BJT switches lowers the total solution cost, achieving high conversion efficiency can be a challenge. The iW3623 solves this by using quasi-resonant mode switching for both the boost and flyback stages and dynamic base current to optimise conversion efficiency and minimise EMI. Additionally, Dialog's EZ-EMI technology simplifies EMI filtering to further minimise the external component count.

Most power ICs are designed with a thermal shutdown feature, which simply shuts the IC down in high temperature environments. This protects the IC,Our heavy-duty construction provides reliable operation and guarantees your thequicksilverscreen will be in service for years to come. but not the LED driver circuit. The iW3623 includes a robust, built-in over-temperature protection and derating function that actually monitors the temperature inside the sealed SSL bulb. The OTP feature is configured via an NTC resistor. When thermal conditions in the bulb reach the set temperature, the iW3623 automatically and incrementally reduces the current drive to the LEDs. This lowers the power dissipation, results in cooler operation, and ensures the temperature rating of the electrolytic capacitors in the system is not exceeded.Need a compatible parkingassistsystem for your car? Derating allows the capacitors to operate within the maximum lifetime of the SSL bulb and results in a predictable bulb operating life. The derating of the current drive results in negligible light reduction, so users will likely not experience any visible changes in light output. In extreme temperature situations, the iW3623 will shut down the current drive to the LEDs to prevent safety and fire risks.

Additional, iW3623 safety features include LED open/short circuit, single fault, over-current, current sense resistor short-circuit,Now it's possible to create a tiny replica of Fluffy in handsfreeaccess form for your office. input over-voltage, brown-out and AC line over-voltage/frequency protections. During output over-voltage conditions, the iW3623 goes into an extended discharge mode, while maintaining a quick recovery, allowing support for hot-plug LED modules without causing dangerously high output voltages.

Let me make clear I am completely sympathetic with this objective. Large global multi-media entertainment companies are bludgeoning Internet companies with fake statistics about lost revenue due to file sharing, allegedly valuable intellectual property rights gone astray, pirates taking over the www and a similar parade of annus horribilis. While some of this might be true, it isnt material to their corporate welfare, which is based on monetizing and exploiting the creative work of others C a form of latter-day alchemy, or (more likely) voodoo. Regardless of what their misleading financial reports show,We have a wide selection of stainlesspendant to choose from for your storage needs. they are indescribably wealthy and somewhat like perpetual motion machines in their ability to throw off cash for the benefit of their proprietors.

In the meanwhile, all but a select few creators remain miserably under-compensated for their work. Those in the realm of stratospheric compensation no longer have anything to do with aesthetics, but rather are relentless and single-minded marketing machines. They have better use for an MBA than an MFA.

This being so, I am dubious about the method of protest engaged in by Wikipedia, together with several other websites I never have heard of (what is BoingBoing and Reddit? does anybody care except for a few venture capitalists?). Rather than imposing inconvenience on their retail customers, internet companies C which (if the truth be known) are every bit as wealthy (if not more so) as the multi-national media companies they purport to disdain C should go hire lobbyists to present their own case for legislative action.
Read the full products at http://www.sdktapegroup.com/!