Full Wave Voltage Doubler

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© 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company FULL WAVE VOLTAGE DOUBLER • ACTIVATE solidThinking © 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company Voltage Doubler Voltage doubler is the circuit where we get the twice of the input voltage, like if we supply 10v voltage, we will get 20 volt at the output. Generally transformers are there to step-up or step-down the voltage, but sometimes transformers are not feasible because of their size and cost. So here is the quick, easy and practical solution to double the voltage. • ACTIVATE solidThinking © 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company Full Wave Voltage Doubler A Full wave voltage doubler is a voltage multiplier with a multiplication factor of two. A full wave voltage doubler is shown below. When the secondary voltage is positive, the first diode D is forward-biased and the primary capacitor C charges to approximately Vp. During the negative half- cycle, the secondary diode D is forward-biased and the secondary capacitor C charges to approximately Vp. The output voltage, 2Vp, is taken across the two capacitors in series. • ACTIVATE solidThinking © 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company Circuit Topology • ACTIVATE solidThinking © 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company By reversing the direction of the diodes and capacitors in the circuit we can also reverse the direction of the output voltage creating a negative voltage output. Also, if we connected the output of one multiplying circuit onto the input of another (cascading), we can continue to increase the DC output voltage in integer steps to produce voltage triplers, or voltage quadruplers circuits. Here in the circuit the input is fed with sinusoidal voltage with an amplitude of 10V, the output obtained across the capacitor voltage is equal to the double of the input voltage i.e. 20V across the two capacitors. • ACTIVATE solidThinking © 2017 solidThinking, Inc. Proprietary and Confidential. All rights reserved. An Altair Company Conclusion The advantage of the Full Wave Voltage doubler Circuit is that it allows higher voltages to be created from a low voltage power source without a need for an expensive high voltage transformer as the voltage doubler circuit makes it possible to use a transformer with a lower step up ratio than would be need if an ordinary full wave supply were used. Thus the Full wave voltage doubler circuit is implemented using the Activate tool. • ACTIVATE solidThinking.

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Hybrid Voltage Multiplier for RF Energy Harvesting Circuits
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