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In this contribution, the coupling characteristics of three novel coupling structures for double CSRRs are applied. Firstly the concept of complementary split ring resonators (CSRRs) is utilized to improve the selectivity of a microwave low pass filter (LPF). To this end, a step-impedance low-pass filter (SILPF) is first optimized and then built. The proposed filters consist of an asymmetrical microstrip...
The first-order Goertzel algorithm has advantages over the second-order Goertzel algorithm for fixed-point implementations due in part to the small scaling factor required to avoid overflow. The first-order system can achieve better accuracy on the computed Fourier coefficients than the second-order system if same size multipliers and adders are used. And when it is implemented as a completely parallelized...
When a power factor corrector (PFC) is designed with a relatively fast output-voltage feedback loop, the static and the dynamic behaviour of the power stage is different to that obtained with a slow output-voltage feedback loop. This is because of the influence of the voltage ripple that is present on the control signal. This voltage ripple generates a parasitic feedback loop, which is different to...
In the last few years, several low-cost power factor correctors (PFC) control techniques operating in continuous conduction mode (CCM) have been proposed in order to simplify the traditional control strategies based on an analog multiplier. This simplification makes sense in the case of relatively low-power and wide input voltage range applications. These techniques are focused in the boost converter...
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