Comparison Between Half-Wave and Full-Wave Voltage Doublers

Half-Wave Voltage Doubler Availability of common point between input and output lines for earthing – Yes, available Ripple Content – High Ripple Frequency – Supply Frequency Voltage Regulation – Poor Maximum Voltage Across Each Capacitor – 2 Vs max PIV Rating Of Each Diode – 2 Vs max Full-Wave Voltage Doubler Availability of common point between input and output lines for earthing – No, not available Ripple Content – Low Ripple Frequency – Twice Supply Frequency Voltage Regulation – Better than that of half-wave voltage doubler Maximum Voltage Across Each Capacitor – Vs max PIV Rating Of Each Diode –…

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Voltage Multipliers

Voltage multiplier is a modified capacitor filter circuit that delivers a dc voltage twice or rnore times of the peak value (amplitude) of the input ac voltage. Such power supplies are used for high-voltage and low-current devices such as cathode-ray tubes (the picture tubes in TV receivers, oscilloscopes and computer display). Here we will consider half-wave voltage doubler, full-wave voltage doubler and voltage tripler and quadrupler. Half-Wave Voltage Doubler The circuit of a half-wave voltage doubler is given in figure shown below. During the positive half cycle of the ac input, voltage, diode D1 being forward biased conducts (diode D2…

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