App note: Understanding noise that comes with inductor based DC-DC converters

Posted on Saturday, January 19th, 2013 in app notes by DP


Here’s a tutorial from On Semiconductor describing noise that comes with inductor based DC-DC convertors. The article highlight the key areas where noise is generated in such systems, and provides suggestions on how to tackle them.

The main purpose of this document is to clarify the source of such a noise, and assess the risk of system’s EMI pollution. The NCP5007 device, together with a PWM based structure, will be used as vehicles to perform the associated engineering test in a real application, but the same may apply to other Boost converters, such as the NCP5005

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