AC-DC Converters  

In a typical AC-DC switch mode power supply (SMPS), the AC mains is rectified and filtered to feed a power factor correction (PFC) stage. Then, by means of high-frequency modulation techniques – sometimes in excess of 1 MHz to reduce size of transformers and inductors – it is then delivered to a DC load with the desired voltage and current ratings.

To find the best solution for their applications, designers have to choose the best power topology – fly-back, buck, or quasi-resonant – or the implementation – based on highly integrated converters or with discrete power switches and controllers – or even decide to use an advanced digital implementation. Whatever their choice, the right semiconductor products are key to meeting their specific design targets.

ST’s broad product portfolio includes highly-integrated AC-DC converters and controllers, silicon and silicon carbide (SiC) power MOSFETs and rectifiers, IGBTs, protection ICs and specifically designed digital controllers and STM32 microcontrollers. We also provide a comprehensive range of hardware and software evaluation and development tools including our eDesignSuite that helps engineers design high efficiency power supplies and converters.

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パワー･マネージメントガイド 2017 09.2017 3.86 MB
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