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2003 Power Seminar Webcast Series
Flyback Converters - Fairchild Power Switch
Overview
This webcast discusses switchmode power supply design issues including an in depth discussion of flyback topology along with critical aspects of component selection. The design of the magnetics is also reviewed. A design example will illustrate how SMPS design can be simplified using Fairchild's FPS Designer software. The design is broken down into a few easy to understand steps followed by evaluation of how the results correlate once the design is built.
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Practical aspects of feedback control
Overview
This webcast explains design considerations when using an optically isolated error amplifier as the voltage feedback device in an off-line switch mode power supply. Using a practical example, the primary focus is on understanding what determines the frequency response of the feedback control system, with the goal of ensuring control loop stability and acceptable transient response in an isolated power supply.
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Power Factor Correction
Overview
The adoption of power factor correction in switchmode power supplies is slowly increasing, driven by regulatory requirements and the increasing demand on local power supply networks. The functions of transition and continuous mode controllers along with practical details of a transition mode implementation are presented during this webcast. Fairchild's solutions for quasi resonant zero voltage switching for higher power are reviewed and will include a discussion of practical implementation details.
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DC-DC Solutions (Control)
Overview
High current and low voltage requirements of today's complex integrated circuits are driving increased replacement of low cost linear regulators by switching regulators. This webcast reviews linear regulators and PWM control methods, then provides important details for designing synchronous buck converters: calculating losses, preventing shoot-through, multi-phase options, and a discrete alternative to DrMOS. Following this, Fairchild's low-cost, hybrid approach to digital control is detailed.
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High-Voltage Discrete Technology
Overview
This webcast illustrates how Fairchild optimizes the design of its high-voltage MOSFETs and rectifiers to meet different needs, and discusses the performance of Fairchild's new SiC Schottky diodes.
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DC-DC Solutions (MOSFETs)
Overview
This webcast begins with recent advances in MOSFET technology and products for 48V-in applications, including recommendations for power-over-Ethernet. Advances in low-voltage MOSFETs for point-of-load applications are also discussed, including how Fairchild is meeting the challenges of providing smaller packaging with lower thermal resistance. In addition, an enhanced version of FETBench is introduced, a "live" data-sheet environment on the web that provides advanced MOSFET selection capability and performance simulation - including thermal - for conditions you specify.
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Motor Solutions
Overview
This webcast reviews asynchronous, brushless DC and low voltage DC systems. We demonstrate thermal calculations for a low voltage DC application and review the design of a frequency inverter. The issues of optoisolation are also discussed including the power supply circuit needed for the inverter, covering AC/DC and PFC considerations.
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archived webcast only
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events in this series
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