Capacitor-input filter

Basic Signal Processing Operations

Published in Nassir H. Sabah, Electric Circuits and Signals, 2017

A direct application of this smoothing operation is the capacitor-input filter, which is commonly used in conjunction with a rectifier circuit to supply a dc load of relatively low power from an ac mains supply (Application Window 17.5.1). In this case τ is made as large as practicable. Another application is the demodulation of an AM wave, in which case τ is chosen so that the modulating signal is adequately recovered (Application Window 17.5.2). If the pulses in Figure 17.5.7 occur at a varying rate, the RC circuit can be used to provide a signal that is indicative of the pulse rate (Application Window 17.5.3).

A High Efficiency Modified Forward Converter for Solar Photovoltaic Applications

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Journal Information

Published in Electric Power Components and Systems, 2023

Praveen V. Pol, Sanjaykumar L. Patil

As is proportional to the duty cycle D and the amplitude of the secondary output rectified pulses, can be regulated by varying D. Whereas, in the proposed converter as shown in Figure 4, the output filter is simply a capacitor input filter. The output capacitor charges to the peak voltage of the secondary output rectified waveform during and gets slightly discharged due to the load current while Therefore, the output voltage of the proposed converter will not be an average value, but it is a function of the input voltage and the step-up ratio determined by the transformer turns ratio. Hence, the output voltage of the proposed converter is unregulated and will be ideally given by,

Capacitor-input filter

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Basic Signal Processing Operations

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