Friday 8 March 2013

Dc Power Supply 13

Full-wave Voltage Doubler 

 The full-wave voltage doubler consisting of a series of stacked half-wave rectifier. (Figure below) corresponding netlist in the diagram below. Rectifier charges C1 on the negative half cycle of the input. Rectifier charges C2 on the positive halfcycle. Each capacitor takes charge 5 V (4.3 V considering diode drop). Output at node 5 is the number of series C1 + C2 or 10 V (8.6 V with diode drop).






 

Full-wave voltage doubler consists of two half-wave rectifiers operating on alternating polarities.

 

Full-wave doubler: (a) Pair of doublers, (b) redrawn, (c) sharing the ground, (d) share the same voltage source. (e) move the ground point.

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