AC-DC power conversion

Power Integrations

The RDK-747 reference design kit from Power Integrations demonstrates a design for a 20 V/3.25 A output charger using the InnoSwitch™3-EP with a 750 V PowiGaN™ power switch. This design shows the high power density and efficiency achieved when using the highly integrated InnoSwitch3-EP ac-dc power converter. 

The InnoSwitch3-EP, the industry’s first ac-dc converter IC with isolated, safety-rated integrated feedback, offers all the benefits of secondary-side control with the simplicity of primary-side regulation. Insensitive to transformer variation, the converter features built-in synchronous rectification for high efficiency. The design meets the requirements for compliance with DOE6 and CoC Tier 2 V5 2016.

Power Integrations

The RDK-710 is a board that implements the RDR-710 reference design report for a 12 W dual-output, open-frame power supply for appliances.

The output options are 5 V/1.4 A or 12 V/0.42 A from an input-voltage range of 85 V to 265 V ac. Featuring built-in synchronous rectification, the RDK-710 achieves efficiency of more than 85% at the nominal ac input. 

No-load input power is less than 10 mW. Standby input power is less than 260 mW at a 5 V/30 mA load. 

 

Video links

InnoSwitch3-TN for auxiliary power supplies

InnoSwitch3-TN for various power conversion topologies

Advantages of InnoSwitch3-TN offline power converter

STMicroelectronics

The EVL4986-350W evaluation board, based on the new L4986 continuous conduction mode power factor controller, implements a 350 W wide-range input PFC pre-regulator.

Infineon

The REF_ICL8820_LED_43W_JT is a 43W reference design featuring Infineon’s flyback controller ICL8820. The board is a constant voltage (CV) secondary-side regulated (SSR) system and is intended to be used with a constant current (CC) converter for LED lighting applications.

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