This paper provides circuit analysis of low-side active-clamp forward converter with synchronous rectification which is widely used as an efficient power supply in various applications. With the use of active clamp technique and synchronous rectification techniques, the losses of the converter reduces and efficiency increases but the number of components also increases. A variety of soft-switching strategies are employed in the forward converter to reduce switching and conduction losses, as well as the overall efficiency. Different clamping circuits, including as active clamping and passive clamping circuits, have been used in the forward converter, which has resulted in a significant reduction in the losses of the converter. Additionally, interleaved and cascaded forward converters are employed in a variety of applications. A forward converter with several outputs is employed for a variety of applications.

This paper provides a comparative evaluation of different topologies of Vienna rectifiers. Vienna rectifier is used for AC-DC conversion and has a reduced number of switches. The PWM-based control mechanism of the rectifier reduces the losses of the capacitor and provides better efficiency. There is a different type of topologies for Vienna rectifiers and this paper evaluates different topologies. Three-phase converters are available in a number of different topologies. The major advantage of a three-level power electronic converter is the reduction in the number of switches required, as well as the reduction in overall harmonic distortion, voltage stress, and AC side voltage ripple. The Vienna rectifier is one of the most effective devices for unidirectional power flow and boosts type power factor correction (PFC) circuits. The Vienna rectifier is modular in design, but its space and weight are restricted.

This work provides the effects of pollution on insulators in high voltage transmission line. Different stress such as electrical, mechanical and environmental stress on outdoor insulator has been discussed in this paper. Comparative performance of different insulators have been provided in this paper. . An insulator constructed of ceramic and glass is one of the components used in the construction of overhead transmission lines. In the insulator, the material used to create the insulation has excellent insulating properties. However, as a result of the outside environment and atmosphere, the insulation qualities of overhead insulators gradually deteriorate and become severely reduced. Electrical stress, mechanical stress, and environmental stress are the three types of stress that can be applied to insulators in general, according to their function. Polymeric insulators, in addition to ceramic and glass insulators, are also utilized in the building of overhead insulators to keep the electricity flowing.