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Power_electronics Features

BEV advancements are driving sales, but vehicle safety and reliability will ensure long-term viability
Innovative power architectures using power modules provide power redundancy and improve overall safety and system performance By Patrick Kowalyk, Automotive FAE,Vicor
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AC/DC power factor correction module offers up to 1,512W
A full brick package developed by TDK-Lambda, the PF1500B-360, is for high voltage distributed power architectures
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Power Electronics Europe News
 
Evaluation board meets LED TV eco standards
The board helps designers quickly build 200W digital power supplies and adapters for LED and OLED televisions to exceed the toughest energy-efficiency and standby regulations.

It is based on ST’s STNRG011 digital PFC and resonant LLC converter and offers the ability to configure and fine-tune operating parameters. No coding is needed as the digital control algorithms are permanently programmed in the controller’s ROM and the board is supplied with a set of sample parameters stored in programmable non-volatile memory (NVM).

The STEVAL-NRG011TV provides a 12V/4A regulated output to power the television’s controller and audio subsystem and a 65V/2.5A output for LED backlighting. The AC input voltage ranges from 90V to 264V, which allows the board to be used in power supplies and adapters around the world. It also exceeds the current highest eco-design specifications, achieving full load efficiency over 91% at 115V and 230V AC and no-load mains consumption below 120mW.

The STNRG011 includes on-chip an 8-bit CPU subsystem, control logic (including PFC and LLC event-driven state machines), an ADC, high voltage start up circuitry, power management and protection. A two-wire interface manages communication with the external EEPROM, remote monitoring and software updates. The converter is housed in a 20-pin SO20 power package, designed to simplify board layout and to minimise overall dimensions.

The STEVAL-NRG011TV is available now. The STNRG011 is also available in full production volumes.




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