AN-6099 — New PowerTrench® MOSFET with Shielded Gate Technology Increases System Efficiency and Power Density in Synchronous Rectification Applications
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چکیده
Synchronous rectification in a high-performance converter design is essential for low-voltage and high-current applications because significant efficiency and power density improvements can be achieved by replacing Schottky rectification with synchronous rectification MOSFETs. Many critical parameters for synchronous rectification MOSFETs and even parasitic components in devices and printed circuit board directly affect the system efficiency of synchronous rectification. Optimization of the MOSFETs plays an important role in improving efficiency. The PowerTrench MOSFET with shielded-gate technology can dramatically reduce both on-resistance and gate charge, which are usually in conflict. With soft-body diode characteristics, the new power MOSFETs reduce voltage spikes that cause additional losses in the snubber circuits. For better system efficiency and power density, the characteristics of new PowerTrench MOSFETs are introduced and compared to other power MOSFETs available in the market. The benefits of these MOSFETs are shown in synchronous rectifier of target application.
منابع مشابه
MOSFET with Shielded Gate Technology Increases System Efficiency and Power Density in Synchronous Rectification Applications
Synchronous rectification in a high-performance converter design is essential for low-voltage and high-current applications because significant efficiency and power density improvements can be achieved by replacing Schottky rectification with synchronous rectification MOSFETs. Many critical parameters for synchronous rectification MOSFETs and even parasitic components in devices and printed cir...
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تاریخ انتشار 2013