A Comparative Study of Symmetrical Cockcroft-Walton Voltage Multipliers

Table 1

Summary of VMs specifications.

Voltage Multiplier		BVM	HSVM1	HSVM2	SPNVM	SVM1	SVM2
Number of capacitors		8	22	10	8	24	12
Number of diodes		8	32	16	8	32	16
Number of secondary windings		one	one	one	one	Two	Two
Transformer windings voltage (V): (V)		10	10	20	10	5	10
Secondary wire factor		1	1	2	1	1	2
Voltage stress on components (V)		20	10	20	20	10	20
Base-cap number		32	22	40	32	24	48
Base-diode number		16	32	32	16	32	32
Simulation results
	(V)	58.7	50.35	72.01	69.63	44.59	68.81
	Ripple (V)	3.11	0.563	0.513	0.496	0.477	0.484
	Ripple factor	0.052	0.011	0.007	0.007	0.010	0.007
	Rise time (ms)	19.6	20.6	13.9	10.2	24.8	16.2
Experimental results
	(V)	57.6	50.4	70.4	68.0	44.0	68.0
	Ripple (V)	3.04	0.648	0.500	0.456	0.560	0.480
	Ripple factor	0.052	0.012	0.007	0.006	0.012	0.007
	Rise time (ms)	22.7	21.1	18.45	14.39	27.32	20.23

Ratio of ripple magnitude to the maximum output value.