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Using spread spectrum clocking techniques with digital systems is quite commonly used to reduce RF emission at the higher harmonics, this to fulfill the existing EMC regulations. Results have been reported frequently. However, with analogue interfaces, fixed frequency sampling is still in place for the sake of signal reconstruction and processing algorithms. In this paper the use of discrete spread...
An EMI reduction technique using two MOSFETs instead of a single MOSFET in a step-down converter is investigated in this article. A circuit that implements this technique together with external capacitor control was designed and measurement results were compared against simulations. The switching element in the proposed circuit is an IRF7309 that consists of a p-channel and an n-channel MOSFET in...
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