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Power Integrations Increases Efficiency of Display Power Supplies with New InnoMux Technology
Innovative 91%-efficient single-stage architecture providesindependently regulated multiple CV and CC outputs; eliminatespost-regulators

 Power Integrations announced the release of the InnoMux™ chipset for display power supplies. The chipset’s unique single-stage power architecture reduces losses in display applications by increasing overall efficiency in constant-voltage and constant-current LED backlight driver stages by 50% compared to conventional solutions, achieving up to 91% efficiency. Additionally, TV and monitor designers can realize over 50% reduction in component count, reducing manufacturing cost and providing an associated improvement in board reliability.

The new chipset consists of an InnoMux controller IC partnered with an InnoSwitch™3-MX isolated switcher IC. The InnoSwitch3-MX is the latest addition to Power Integrations’ flyback switcher IC families, combining the primary FET, the primary-side controller, a secondary-side controller for synchronous rectification, and FluxLink™ high-speed communications technology, which eliminates the need for an optocoupler. The InnoSwitch3-MX receives control information from the InnoMux IC, which independently measures the load requirements of each output and directs the InnoSwitch3-MX switcher to deliver the right amount of power to each of the outputs to maintain accurate regulation of current or voltage; this eliminates the load and cross-regulation challenges seen with conventional multi-output power supplies, making post-regulators unnecessary. Overall power conversion efficiency increases by 10%, removing the need for heatsinks and eliminating hotspots while easing compliance with the upcoming ENERGY STAR® 8.0 display specification and the new CEC power-consumption standard scheduled to take effect in July 2019.

Uniquely, InnoMux technology supports both accurately regulated constant-current and constant-voltage outputs simultaneously, supplying one to four channels of constant-current and up to two constant-voltage outputs. This flexibility supports the logic, audio and LED requirements typically seen in TV and monitor displays. The IC provides overload protection for each output. InnoMux technology also supports sophisticated dimming on the LED CC output — analog, PWM, interleaved and hybrid dimming are controlled via dedicated analog and PWM control pins, allowing accurate dimming down to 1.5%.

Comments Edward Ong, product marketing manager at Power Integrations: “Developers can leverage InnoMux’s power conversion efficiency in two ways: they can develop highly efficient monitors and TVs to meet manufacturer targets and regional regulatory mandates, or they can downgrade the efficacy, and therefore the cost, of their display panel by using less expensive LEDs and simpler, cheaper, diffusers while still meeting upcoming ENERGY STAR 8.0 rules.”

Two reference designs, DER-635 and DER-636, are available. DER-636 describes a 40 W power supply monitor power supply with one constant-voltage output and four constant-current outputs. DER-635 is a 45 W supply that supports TV applications, providing 2 CV and 1 CC output. Samples will be available in the second quarter of 2019 via the Power Integrations website at www.power.com/products/innomux-family.

2019032406 / 27.03.2019 / Electronic-components / Power Integrations /

Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs
InnoSwitch4-Pro family of flyback switchers enable over 95 percent efficient, compact, USB PD and Universal Fast Charging Specification adapters up to 220 W

Power Integrations Debuts Support for Planar Magnetics in PI Expert Power Supply Design Tool
Software automatically generates a planar transformer design with full electrical specification and build documentation in just five minutes

Power Integrations Launches PowerPros Live Video Application-Engineering Support
Solve design challenges in real-time, 24 hours a day, six days a week

Power Integrations Delivers AEC-Qualified Buck Switcher IC with 850 mA Output for Low-Part-Count Automotive PSUs
LinkSwitch-TN2Q supports 30-550 VDC input with integrated system-level protection

Power Integrations Bundles New Three-Phase BLDC Control Software into Motor-Expert Suite for BridgeSwitch IC Family
Hardware-Software Solution for Three-Phase BLDC Motor Inverters Enables Greater Than 98 Percent Efficiency, Saves PCB Space and Speeds Time-to-Market

Power Integrations Expands InnoSwitch4-CZ Integrated Switcher Family to 220 W
New high-voltage GaN switches boost efficiency to 95 percent, yielding ultra-compact USB PD 3.1 adapters

Power Integrations Launches SCALE EV: Automotive-Qualified IGBT/SiC Module Driver Family; Targets Bus, Truck and Con-Ag EVs
Compact driver board features reinforced isolation, ASIL B/C certification

Power Integrations’ HiperLCS-2 Chipset Boosts LLC Converter Efficiency, Slashes Component Count by 40 Percent
Surface-mount LLC chipset delivers 250 W with over 98 percent efficiency and no heatsink; no-load consumption is less than 50 mW

Power Integrations Introduces Industry’s First Automotive-Qualified High-Voltage Switcher ICs with 1700 V SiC MOSFET
Expanded InnoSwitch3 family slashes component count and boosts efficiency in EV and industrial applications

Power Integrations’ New InnoSwitch3-TN ICs Slash Energy Waste in Appliance Power Supplies by 75%
Beyond the buck regulator: Newest InnoSwitch3 IC family delivers simplicity, flexibility, and industry-leading efficiency in high-output-current designs

Power Integrations Releases InnoSwitch3-PD Reference Design for Ultra-Compact USB Type C, PD + PPS Adapter
DER-937 leverages highly integrated boost PFC and GaN flyback switcher ICs to implement 100 W USB PD charger using only 117 components

Power Integrations Introduces the InnoSwitch3-PD Family of Flyback Switcher ICs with Built-In USB PD Controller
A fully integrated charger solution combines USB PD, PPS, PowiGaN and FluxLink to maximize efficiency and slash component count in adapters and chargers

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