![]() ![]() I will also give an overview of Silent Switcher packaging and layout and discuss how these can enhance the overall performance of the step-down converters. This will also include how Silent Switcher devices work. I will also introduce ADI’s Power by Linear TM Silent Switcher ® technology, including how it is constructed, and demonstrate how it helps solve EMI problems without any compromises. And then we will see what can be done to reduce the high frequency noise. ![]() In fact, many are step-up mode (boost) or even a buck-boost topology (buck and boost modes combined).Ĭlearly, an obvious question facing many electronic systems manufacturers is this: How will all the switch mode power supply circuits needed in my systems get finished? Solving a Design Resource Shortfallĭuring the course of this discourse, I will go over some of the basics of buck regulator operation including how high di/dt and parasitic inductance in the switcher hot loop cause electromagnetic noise and switch ringing. Well, for one thing, more and more digital designers are being asked to take on switch mode power supply designs, if for no other reason than there are simply not enough analog power supply designers to get the job done! While it is safe to say that most digital designers know how to design with a simple linear regulator, not all of their power requirements are step-down (buck mode). They are retiring and leaving the industry! So, how does this problem get solved? While many switch mode power supply designers are familiar with the design complexities and nuances of switch mode supplies, there are simply not enough designers in many companies to get all the designs done for all of their project needs. Therefore, having a proven way to mitigate the potential threats from EMI generation from the onset can ensure a quiet and stable power supply. ![]() While switching power supply layout is not black magic, it is often overlooked until it is too late in the design process. It sets functional, electromagnetic interference (EMI), and thermal behavior. It goes without saying that PC board layout determines the success or failure of every power supply design. Silent Switcher Devices Are Quiet and Simple ![]()
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