Synchronous Rectifiers Flyback Topology
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Synchronous Rectifiers Flyback Topology Content
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ARTICLE
HOW TO DESIGN AN ULTRA-WIDE INPUT VOLTAGE RANGE FLYBACKARTICLEIn modern technology, the flyback converter is one of the most widely used topologies for domestic and industrial applications that require an auxiliary power supply. Because flyback topology is so popular, designers often attempt to create a unified, single design for an ultra-wide input voltage (VIN) range. This type of design allows flybacks to be used to their maximum functionality while avoid...
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ADVANCING THE SYNCHRONOUS RECTIFIER FOR NEW FLYBACK CONVERTERSARTICLEFlyback topology has dominated low-power AC/DC applications for decades due to its simplicity and robustness across a wide operating range. In recent years, synchronous rectifiers (SRs) have replaced the conventional Schottky diode in flyback-based power supplies to significantly improve efficiency. As the demand for efficiency and power density increases year by year, flyback converters must con...
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DESIGNING A SYNCHRONOUS RECTIFICATION SOLUTION TO REDUCE EXCESSIVE HEAT (PART II)ARTICLEThis article is the second part of a two-part series exploring how to design a secondary-side synchronous rectifier for ultra-small, fast charge adapters. Part I discussed the topology designs and power supplies for synchronous rectifiers. Part II will review how a synchronous rectifier opens and shuts down, and how new devices utilize quick shutdown technology. A self-powered circuit provides ...
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DESIGNING A SYNCHRONOUS RECTIFICATION SOLUTION TO REDUCE EXCESSIVE HEAT (PART I)ARTICLEMobile devices — such as mobile phones and laptops — are integral to the modern world. The development of mobile devices has accompanied a demand for small, lightweight, and fast-to-charge adapters. Major manufacturers are rushing to introduce ultra-small, fast charge adapters (see Figure 1). This article is the first part of a two-part series exploring how to design a secondary-side synchr...
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HOW DOES FLYBACK SYNCHRONOUS RECTIFICATION AFFECT EMI?ARTICLEDue to the rapid development of mobile devices in the last decade, cell phone applications have expanded into every aspect of society. In day-to-day life, few people leave their cell phone, even for a few minutes. As a result, high battery capacity and fast charging speed has become one of the most critical features for cell phones, and the demand for adapters with higher power ratings and higher ...
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REFERENCE DESIGN
45W USB-C POWER ADAPTER WITH CYPRESS CCG3PAREFERENCE DESIGNThis 45W Notebook Power Adapter Board is a receptacle based Type-C power adapter. The major components in this design are Cypress’s EZ-PD CCG3PA (CYPD3174-16SXQ) controller and Monolithic Power System's Fixed Frequency Flyback controller (HF0500) and Synchronous Rectification Controller (MP6907) The MPS components on these reference designs are carefully selected to meet price and perfo...
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