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A New Approach to Circuit Breaker Design Using Silicon Carbide Switches - Nov 21
Mechanical circuit breakers can be low cost with minimal losses, but they operate slowly and wear out. Solid state versions overcome the problems and are becoming increasing viable as replacements at...
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Power Electronics Europe News
 
Flyback switcher IC family can be used for metering
They offer high accuracy, high efficiency and excellent no-load performance, says the company, making them suitable for appliances, IoT, metering and industrial bias power.

 

They target isolated and non-isolated flyback applications where regulation of output voltage and current are required. The ICs can deliver up to 6.1W in wide-input range designs, and up to 9.2W for 230V AC open-frame applications.

 

Designed for flyback topologies where current and voltage regulation is better than ± three per cent and typical efficiency above 80 per cent. The ICs consume less than 10mW in no-load conditions. High operating frequency of 132 kHz enables the use of small power transformers, while the programmable current limit function enables further transformer optimisation.

 

LinkSwitch-XT2 converters combine a 725V power MOSFET with control circuitry on a single silicon die. Integrated safety and reliability features include input over-voltage protection, hysteretic thermal shutdown for over-temperature protection, and auto-restart for output short-circuit, overvoltage and open-loop protection.

 

Three packages, P-package (DIP-8C), D-package (SO-8C), and G-package (SMD-8C) are available.

 

 



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