Design of Active HVDC Filter to Improve Efficiency in Photovoltaic Systems

In this research, we designed a circuit for active volt-amp filtering at high frequency in the frequency range of 10-100MHz. This model of circuits has transistor structure that have high active voltage range in the DC range. In the structure of this circuit, the second- class differential cascode technique is designed with a mirror-style circuit. This circuit, with a mirror-shaped circuit structure, separates the positive and negative circuit charge values in DC voltage and prevents polarization interference, which will weaken the voltage and inefficiency of the circuit. In these circuits, most of the two diode and transistor structures are designed in combination. Another advantage of this circuit is the transistor structure, which, by changing the value of W / L, determines the value of the analysis of the output circuit diagrams and, in terms of the active filter structures, improves the analytical value and increases the circuit operation. These types of circuits are used in the structure of photovoltaic systems and wind-converter systems at 50-240 DCV voltages. These photovoltaic systems have the most efficient photovoltaic structure. Thus, the photovoltaic system transmits direct sunlight to the voltage and transmits it to the Vdc mode at the output of the system. This filter with active transistor structure improves the efficiency of the high voltage level of DC and also low voltage and voltage distortion in voltage rectifier. It also has a low voltage level in MHz; this bandwidth will improve the circuit s floating voltage and weaken and reduce the delay time in the voltage transmission circuit to increase the efficiency of the circuit. Circuit design is designed using ADS software using CMOS 0.18um transistor technology.

Keywords:

Active Filter , High Voltage DC , CMOS , F MHz , Distortion