In the present situation, the demand for high voltage production exists huge, but regrettably there are some techniques like conventional are not reaching the current demand. Transformers are being used for the high voltage AC generation which has to be rectified to DC. This technique is both bulky as well as expensive. The proposed system could be capable in both the ways. Here we are producing high voltage DC with the help of basic components like capacitors and diodes. With the amplify in flowing very high voltages can be attained. Even though it is common in several electronic circuits to employ a voltage transformer to amplify a voltage, sometimes an appropriate step-up transformer required for high-voltage applications may not always be obtainable. One other method is to employ a diode voltage multiplier circuit which boosts the voltage without the utilize of a transformer.
Block Diagram of High DC Voltage From AC in Voltage Multiplier Circuit
The hardware requirements of this high DC voltage from AC in voltage multiplier circuit project mainly include diodes, electrolytic capacitors, resistors, multimeter, and lamp.
This project describes the design and implementations from a single phase AC to high voltage DC power supply till 10kVoutput.The implementation of the hardware work to build a high voltage DC power supply is meant for use in the laboratory. The designed DC power supply can be used in industrial applications also. The design of the circuit involves voltage doubler, whose principle is to double the output voltage. The output of the voltage doubler is given to a series of a cascaded circuit that generates up to 10KV but for the student project, it is advisable to go up to 2KV for safety reasons.
A basic capacitor has two parallel plates separated by an insulating material. A capacitor stores an electrical charge between the two plates. The unit of capacitance is Farads (F).
Electrons on the left plate are attracted toward the positive terminal of the voltage source. This leaves an excess of positively charged holes. The electrons are pushed toward the right plate. Excess electrons leave a negative charge
The Diode is a simplest and Nonlinear semiconductor device, used in power supplies, and voltage limiting circuits.
Project Working High Voltage DC
The proposed system can be designed to develop a high voltage DC approximately 2KV from a 230V AC supply using diodes as well as capacitors in the form of a ladder network based on the concept of the voltage multiplier.
The proposed system gives an overview of how to design a high voltage DC from a single phase AC. For security reasons, this system controls the multiplication factor to 8 such that the o/p would be in 2KV. This generation theory concept is used in different electronic appliances, namely the TV Picture tubes, CRT’s, oscilloscope and also used in manufacturing applications.
The circuit can be designed with a voltage multiplier, whose principle is to go on doubling the voltage for every stage. Therefore, the o/p from an 8-stage voltage multiplier can produce up to 2KV. As this is not potential to be calculated with a typical multimeter,
At the output, a potential divider of 10:1 is used at the o/p such that 2KV. A potential divider of 10:1 is used at the output such that 200V reading means 2KV. Due to the small input impedance of the multimeter, actually, the reading would be about 7 times the i/p AC voltage.
Further, this project can be developed to produce the high voltage DC up to the range of 30 to 50KV by enhancing the number of stages. The applications of this system can involve industrial and medical.
The advantages of high DC voltage from AC in voltage multiplier circuit include the following.
- It is handy, uses less space and low cost
- It will generate high voltage
- By increasing the number of stages, it will generate up to 50kV
- In the conversion of AC to DC, rectifiers are removed.
The applications of high DC voltage from AC in voltage multiplier circuit include industries, metal cuttings, bio-medical field, in the process of electrolysis, laser guns, LCD, lighters, cameras, etc
Thus, this is all about high DC voltage from AC in the voltage multiplier circuit. We hope that you have got a better understanding of this concept. To know more about in implementing electrical projects, please give your valuable suggestions by commenting in the comment section below.