Power Electronics / Power Management


Switchers for high-power LED displays

25 March 2020 Power Electronics / Power Management

Power Integrations’ InnoSwitch3-MX isolated switcher IC family has been expanded with the addition of three new PowiGaN devices. As part of a chipset with Power Integrations’ InnoMux controller IC, the new switcher ICs now support display and appliance power supply applications with a continuous output power of up to 75 W without a heatsink.

The InnoMux chipset employs a unique single-stage power architecture that reduces losses in display applications by 50% when compared to conventional designs, increasing overall efficiency to 91% in constant-voltage and constant-current LED backlight driver designs. Additionally, by eliminating the need for post regulation (i.e., buck and boost) stages, TV and monitor designers can halve component count, improving reliability and reducing manufacturing cost. With a high breakdown voltage of 750 V, the PowiGaN InnoSwitch3-MX parts are also extremely robust and highly resistant to the line surges and swells commonly seen in regions with unstable mains voltages.

InnoSwitch3-MX flyback switcher ICs combine the primary switch, the primary-side controller, a secondary-side synchronous rectification controller and PI’s innovative FluxLink high-speed communications link. The InnoSwitch3-MX receives control instructions from its chipset partner InnoMux IC, which independently measures the load requirements of each output and directs the switcher IC to deliver the right amount of power to each output, maintaining accurate regulation of current or voltage.

Comments Power Integrations’ product marketing manager Edward Ong: “By using our PowiGaN technology we are able to address higher-output applications in TVs, monitors and appliances that employ LED displays. The chipset increases efficiency beyond the requirements of all mandatory regulations and improves manufacturers’ scores in EU efficiency labelling programmes.”


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Wide-input DC/DC converters in 1/32nd bricks
Brabek Power Electronics / Power Management
RECOM now offers through-hole, 1/32nd brick-footprint, non-isolated DC/DC converters – the RPMA-4.5 and RPMA-8.0 – with 4,5 A and 8 A output ratings respectively. Each part has a wide 9-53 V input and ...

Read more...
Auto-ranging benchtop and rackmount power supplies
Vepac Electronics Power Electronics / Power Management
The programmable DC power supply family from Elektro-Automatik (EA) ranges in power from 80 W benchtop devices up to 30 kW in a single chassis. High power density units can be easily paralleled for up ...

Read more...
maXTouch touchscreen controller for various aspect ratios
EBV Electrolink Analogue, Mixed Signal, LSI
As the automotive market continues to demand larger touchscreens with more flexibility in size and shape, Microchip Technology is announcing a new maXTouch touchscreen controller that allows automotive ...

Read more...
Embedded vision development tool for RISC-V FPGA
EBV Electrolink Programmable Logic
Microchip Technology announced the second development tool offering in its Smart Embedded Vision initiative for designers using its PolarFire RISC-V system-on-chip (SoC) FPGA. The industry’s lowest-power ...

Read more...
Step-down converter with nano quiescent current
Altron Arrow Power Electronics / Power Management
The ST1PS03 is a nano-quiescent miniaturised synchronous step-down converter which is able to provide up to 400 mA output current with an input voltage ranging from 1,8 V to 5,5 V. This STMicroelectronics ...

Read more...
Convection cooled 150 W and 300 W power supplies
Vepac Electronics Power Electronics / Power Management
Cosel announced the addition of 150 W and 300 W free air convection cooled power supplies, the LHP150F and the LHP300F. Designed for industrial applications requiring high levels of safety, they are certified ...

Read more...
Wireless asset tag supporting Quuppa RTLS
EBV Electrolink Telecoms, Datacoms, Wireless, IoT
onsemi unveiled a new system solution that overcomes the main challenges associated with developing asset tracking tags. Battery life has been a major obstacle to asset tag adoption, particularly within ...

Read more...
USB charger solution with high power density
Altron Arrow Power Electronics / Power Management
Diodes Incorporated has launched a three-chip solution for enhancing the performance of ultra-high-power-density USB Type-C power delivery (PD) systems. These products can be used in a wide variety of ...

Read more...
Crossover MCU with 3D camera
EBV Electrolink DSP, Micros & Memory
NXP Semiconductors has announced the expansion of its NXP EdgeReady solution portfolio, adding a solution for secure face recognition that leverages a high-performance 3D structured light module (SLM) ...

Read more...
Totem pole PFC controller
EBV Electrolink Power Electronics / Power Management
A new addition was made to ON Semiconductor’s solution set for ultra-high density offline power supplies in the form of the NCP1680, a dedicated critical conduction mode totem pole PFC controller. It ...

Read more...