As shown in Fig.3, the proposed CW voltage multiplier is constructed by a flipped cascade connection of the stages.
The boost inductor (Ls) and input Vin dc source are in series the boosted energy transfer to the CW voltage multiplier through different diodes.
In this paper, a high step-up DC-DC converter based on flipped Cockcroft Walton Voltage Multiplier has been presented to obtain a high output voltage gain with increased output current and high output power.
"A High Step-Up Converter Using Transformerless Cockcroft-Walton Voltage Multiplier for a PV System", IJIRSET, 3.
To be clear, in Figure 2, simulation result of a basic half-wave Cockcroft-Walton voltage multiplier circuit, by Saber Synopsys software, is given.
Conventional Symmetrical Voltage Multiplier. As mentioned in previous section, by increasing number of stages, the ripple amplitude and drop voltage increase significantly, which make the voltage multiplier inefficient.
Hybrid Symmetrical Voltage Multiplier. Recently a new symmetrical voltage multiplier has been proposed [1].
In order to raise the voltage value obtained by the antenna to a desirable value (over 1.2V DC) it will be used a Cockcroft-Walton voltage multiplier (VM) [4].
Figures 6a and 6b contain the results obtained in the several tests made to this voltage multiplier. It is made a comparison between the simulation and the practical results obtained.
As shown by the results obtained, this voltage multiplier doesn't work in the desired frequencies.
For an n-stage CW
voltage multiplier, the output voltage is equal to the total voltage of all even capacitors, which can be expressed as