Anyone can learn how to construct a special type of generator that produces extremely high frequency power which is explained through this article.
This allows one to conduct experiments which are not easy with standard power supplies.
One benefit of this high frequency electricity is that it is unlikely to shock anyone if they accidentally touch it because it mainly remains on the humans skins surface.
However even if they contact the circuit directly it increase the risk of getting burned because it can still feel hot.
WARNING: Designing high voltage circuits could prove harmful.
Do this only under the supervision of an experts.
What is a High Voltage Generator Circuit:
A high voltage generator circuit is an electronic circuit designed to produce high voltage level.
These circuits are often used in various applications such as physics experimental , medical equipment, industrial processes and sometimes for specific hobbyist projects.
Usually voltages that are higher than the usual household voltage of 120V or 230V are referred to as high voltage.
Circuit Diagram:
Parts List:
| Component | Description | Quantity |
|---|---|---|
| Resistors | 1/4 W MFR | |
| 3.3k | 1 | |
| Potentiometer | 22k | 1 |
| Capacitors | ||
| PPC | 33pF | 1 |
| Electrolytic | 1000μF 25V | 1 |
| Semiconductors | ||
| IC | 555 | 1 |
| MOSFET | IRF540 | 1 |
| Transformer | As given in article | 1 |
How to Build:
To build a Simple High Voltage Generator Circuit follow the below mentioned connection steps:
- Connect the 555 IC to create a simple oscillator circuit.
- A potentiometer and resistors are used to modify the operating frequency.
- To allow right switching connect the MOSFET to the oscillator circuit.
- Include the necessary filtering parts in the section for the power supply.
- Connect the MOSFETs primary winding to its output.
- The output is connected to the secondary winding.
- To provide one way current flow and for correction add diodes.
- Add an inductor and capacitors to filter and smooth the output.
Installing a Heat Sink:
The MOSFET should be connected to a heat sink to prevent overheating.
Features related to safety:
One must use safety precautions like fuses and isolation to be aware of electrical problems.
Formulas:
The following formulas are important for understanding these circuits:
Transformer Turns Ratio:
Vout = Vin * (Nsecondary / Nprimary)
where,
- Vout is output voltage
- Vin is input voltage
- Nsecondary is the number of turns in the secondary coil and
- Nprimary is the number of turns in the primary coil.
High voltage generators based on transformers can use these formulas.
It shows how the secondary coils rotation ratio in relation to the primary coil decides how to increase the voltage
An increase in secondary turns raises the output voltage.
Transformer Winding:
Primary Winding:
Wrap the ferrite core with six turns of thick insulated wire.
Secondary Winding:
Place 300 turns of wire with a diameter of 0.4 mm or less onto a solder spool.
As one arranges the winding be sure that no turns overlap.
Insulation:
Between winding layers use insulation or plastic strips.
Use a minimum of two layers of insulation to reach the spools edge.
Spacing and Attachment:
Give each side of the winding a space of 3 to 4 mm.
To keep windings from reaching too near the edge of the spool connect them using tape.
Terminal and Transition Placement:
Outlets and coil terminal crossings must to be placed uniformly.
Maintain a 120 degree gap between layers in a five layer winding.
Slowly turn on the circuit to check its operating properly and to detects its resonance frequency
Monitoring:
Be sure the power source wont harm any nearby equipment so one should keep a close watch on unusual activities.
Safety Precautions:
Follow the safety instructions and cautions while building a circuit.
Protect yourself from burns or shocks for that one should stay away from the output.
Conclusion:
Keep safety in mind during the building process particularly while handling high voltages.
If anyone lacks knowledge with high voltage generating circuits think about consulting an electronic adviser or expert.
Also always use the proper protective gear and follow the safety rules.
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