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An air cored inductor consists of an insulated conducting wire wound in a closely spaced spiral over a hollow cylindrical non-conducting tube (former). If a ferromagnetic material like iron is kept inside the tube it is known as iron cored inductor. The impedance of the inductor consists of two parts 1) The resistance of the conducting wire 2) The reactance of the inductor. It is observed that the...
This paper presents an efficient MPPT controller. Incremental conductance algorithm is chosen for MPPT to improve the efficiency. The advantage of this algorithm is that the operating point does not oscillate around the Maximum Power Point. The algorithm also detects the atmospheric conditions. The operating point gets shifted according to the irradiance. The DC-DC converter chosen is a MOSFET based...
This paper presents thin-film high-rejection bandpass filters integrated into organic substrate technology called RXP. A circuit topology based on unique resonator and grounding inductor is proposed. The proposed circuit provides design freedom of locating transmission zeros at lower and upper stopbands relative to the center frequency. About 2.4 GHz narrow band and 5 GHz...
Single ended - Balanced (Se-Bal) SAW filters are widely used in RF Front End stages of mobile devices with differential Low Noise Amplifiers (LNA). Typically Multi- Mode SAW (MMS) RF filters are designed to have standard output impedance (for example, differential 100, 150 or 200 Ohm). This device is then matched to the LNA, having much higher input impedance, by 3 element pi-matching networks (2...
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