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Power Supplies: High Voltage Generators, page 1
High Voltage Generators#-G    H    I-Z
Power Supplies -- Main Page
Last Updated on: Monday, October 26, 2009 04:01 AM


Circuits Designed by Dave Johnson, P.E. :
  • 12KV High Voltage Generator The hobby circuit below uses an unusual method to generate about 12,000 volts with about 5uA of current.  Two SCRs form two pulse generator circuits.  The two SCRs discharge a 0.047uF a 400v capacitor through a xenon lamp trigger coil at 120 times a second.  The high voltage pulses produced at the secondary of the trigger coil are rectified using two 6KV damper diodes.  The voltage doubler circuit at the secondary of the trigger coil charges up two high voltage disc capacitors up to about 12KV.  Although this circuit can’t produce a lot of current be very careful with it.  A 12KV spark can jump about 0.75 of an inch so the electronic circuit needs to be carefully wired with lots of space between components. 
  • LOW POWER 12,000 VOLT POWER SUPPLY
    If you need about 12,000 volts DC for an ion generator this circuit might be the ticket. It draws power from the 120vac power line but it uses a small 6KV camera flash trigger coil. The output signal is isolated from the power line. Although the circuit can only deliver about 5uA of current it can produce dangerous shocks, so be careful.


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

1 kV Power Supply produces a continuous arc - 02/05/04 EDN-Design Ideas: Designing a high-voltage switching power supply that can produce a sustained arc can be challenging. This compact and efficient design delivers 1 kV at 20W and can withstand a continuous arcing, or short-circuit, condition.....(design idea added 1/05)

1 to 300 Volt Adjustable Power Supply - This is a simple circuit that can provide an adjustable voltage source of0 to330 Volts.  supply is short-circuit proof: current is limited to about100mA. (added 4/02)

10 Amp 13.8 Volt Power Supply - Just like other commercial units, this circuit uses the LM723 IC which gives us excellent voltage regulation. The circuit uses 3 pass transistors which must be heat sinked….(electronic design added 6/07)

12KV High Voltage Generator - The hobby circuit below uses an unusual method to generate about 12,000 volts with about 5uA of current.  Two SCRs form two pulse generator circuits.  The two SCRs discharge a 0.047uF a 400v capacitor through a xenon lamp trigger coil at 120 times a second.  The high voltage pulses produced at the secondary of the trigger coil are rectified using two 6KV damper diodes.  The voltage doubler circuit at the secondary of the trigger coil charges up two high voltage disc capacitors up to about 12KV.  Although this circuit can’t produce a lot of current be very careful with it.  A 12KV spark can jump about 0.75 of an inch so the electronic circuit needs to be carefully wired with lots of space between components.  ….(designed by David A. Johnson)

14 VDC to 120 VAC Inverter - Ever needed a low power 120volt AC  power source for your car, van or truck? Well this circuit should do the trick for you. It will supply 15 watts of AC power to a device. It should power lamps, shavers, small stereos and small appliances. If you draw to much power the circuit will shut down all by itself. The output....(added 09/05)

25 k Volt Generator Tests Insulation - 05/21/98 EDN-Design Ideas: (design idea added 3/03)

4k Volt 5k Volt 2000VAC Power Supply - These transformers are 120VAC input with 2kVAC output. Just wire the cores together (the cores are normally one of the HV terminals) and wire the primaries so they oppose eachother. If you don't get a nice arc from this switch the input leads on one transformer. This will not arc over that far, but if you start a small arc you can pull it out to about 5". These transformers will make an excellent supply for a Jacob's ladder.... (added 08/08)

A Momentary High Voltage Arc Circuit - Can be used to Ignite a barbeque or a Gas in a Potato Gun....(design added 12/08)

A Single Amplifier Precision High Voltage Instrument Amp - DN25  Design Notes (Linear Technology) (app note added 6/06)

An Electric Fence project -  A Very Efficient and Simple Cmos Design....(design added 12/08)

AN-H35: HV441: High Voltage Ring Generator - Supertex Semiconductors (app note added 6/06)

AN-H37: HV440 High Voltage Ring Generator - Supertex Semiconductors  (app note added 2/06)

APD Bias Circuit has Adjustable Output - 05/22/97 EDN-Design Ideas: / PDF contains multiple circuits, scroll to find this circuit.....(design idea added 4/02)

APD bias circuit has adjustable output  - 05/22/97 EDN-Design Ideas: (design idea added 11/05)

Build the Lightning Bulb - (Tony van Roon's electronic design / schematic added 2/06)

Circuit delivers high Voltage Swing from Lower supplies - 12/12/02 EDN-Design Ideas: The need for higher voltage swings in applications such as test-and-measurement instruments is constantly increasing, but the power supplies impose limitations on the operational amplifier rails make the high-voltage need a challenge for designers. How do you deliver high-voltage swings to a load without increasing the voltage levels.....(design idea added1/05)

Cockcroft Walton Diode Voltage Multipliers - this document describing some basic voltage multiplier circuit topologies, PDF file (added 4/02)

Convert Atari-style Joystick to PC Joystick Port - Some games are easier to play with digital joystick instead of analogue type. Unfortunately PC has only analogue joystick connector, which makes it impossible to connect normal digital joystick to it. But with a little adapter circuit, it is possible to use Atari style digital joystick with IBM PC joystick interface. The circuit adapts the joystick connectors and converts digital joystick movement signals to analogue signals…(added 05/05/05)

Current Sense Amplifier Handles High Voltages - 11/06/97 EDN-Design Ideas: (design idea added 6/06)

Easy Xenon DC-to-DC Converters! - (design circuit added 8/02)

Electronic Dazer - (circuit / schematic design added 6/06)

Electronic Dazer (Rick Duker) - The dazer is considered an illegal firearm in Canada, except for use by speciality forces and law enforcement.  Unless for laboratory experimentation, having it in your possession is the same as having an illegal gun or a gun without the proper FAC permits.  It is presented here for educational and experimental purposes only as part of our High-Voltage Projects. (Tony van Roon's electronic schematic / circuit added 08/09)

Electronic Dazer ~rstevew - The Electronic Dazer is a modern, portable, personal-protection appliance. It generates hight potential energy to ward off vicious animals or other attackers. It is an aid to help exape from a potentially dangerous situation. the device develops about 2,000 volts. Higher voltages mabe be attained by adding aditional multiplier stages, but it should be noted that those stage will also increase the overal size of the unit.
The Dazer is very compact, being built into a small plastic case. It is powered by a single 9-volt battery, either NiCad or alkaline. (Editor's Note: the so-called 9-V NiCad actually provides only about 7.5V. Why? NiCad cells only give 1.25 per cell. 6 cells in a 9volt battery gives it 7.5V and so the Alkaline type would be a better choice).  (added 9/04)

Even Cheaper & Simpler Ion Chamber - Here is a really simple version of the above chamber that is surprisingly sensitive for its simplicity. It uses the same coffee can as above but only one transistor. Here are step-by-step instructions for constructing this really easy-to-build version….(added 04/05/06)

HeNe Laser Power Supply (Aaron Cake) - (circuit added 7/02)

High & Low Voltage Cut Off With Time Delay - The power line fluctuations and cut-offs cause damages to electrical appliances connected to the line. It is more serious in the case of domestic appliances like fridge and air conditioners. If a fridge is operated on low voltage, excessive current flows through the motor, which heats up, and get damaged.….(electronic schematic added 08/08)

High Current LM317 Regulated Power Supply - The high current regulator below uses an additional winding or a separate transformer to supply power for the LM317 regulator so that the pass transistors can operate closer to saturation and improve efficiency. For good efficiency the voltage at the collectors of the two parallel 2N3055 pass transistors should be close to the output voltage. ….(design added 11/08)

High Current Power Supply - Since my page was first posted, I have received a number of emails asking about a high current power supply. I looked around, but couldn't find one that was suitable. So, I designed this. It is a linear supply, which might have a few of you rolling your eyes, but it takes very few parts, is simple to build and can supply huge currents. ….(electronic schematic added 11/08)

High Voltage Adjustable Power Supplies - National Semiconductor Application Notes,28-Jun-1996 (app note added 4/02)

High voltage Amplifier Drives piezo tubes - 12/07/04 EDN-Design Ideas: Piezoelectric tubular positioners that drive manipulators in scanning tunneling microscopes require high-voltage, low-current drive circuits. The circuit in Figure 1 can drive high-resistance, low-capacitance piezoelectric loads at a -3-dB bandwidth of 6 kHz. It offers a low-cost alternative to commercial drivers.....(design idea added 10/05)

High Voltage Amplifier uses simplified circuit - 10/14/04 EDN-Design Ideas: Many scientific instruments and sensors need ac high-voltage drive. High-voltage drive is useful for driving electrodes in many applications. The challenge is to boost the output of a conventional op amp to high voltages. Available ac high-voltage amplifier modules are limited to approximately 1200V p-p.....(design idea added 5/05)

High Voltage Breakdown Tester - (Not for beginners!)  The following circuit is used to determine the breakdown voltage of electronic components without causing permanent damage. The circuit quickly ramps the high voltage up from zero and stops when the leakage current reaches a preset amount up to 100 uA.  When power is applied the two-transistor flasher circuit drives the complimentary-symmetry....(electronic circuit added 7/03)

High Voltage Electronic Dazer - (schematic / circuit added 10/02)

High Voltage Generator (Charles Wenzel ) - The simple circuit can be used at very low frequencies, RF frequencies, low voltages, or even very high voltages with careful selection of transistors. The power handling capability and power consumption are also easily modified to suit the requirement.....(added 7/03)

High voltage generator (Domenico Di Mario) - Easy to build, this high voltage generator is capable of generating up to 50KV but the breakdown voltage of the coil limits the voltage to a value somewhat lower. T2 is the ignition coil of a car and also the 0.5µF capacitor comes from the same place: actually I suggest using only this type of capacitor....(schematic / circuit added 05/05)

High Voltage Generator for Low Current Applications - Scroll down to find this circuit.  Here is a simple circuit for generating over 100 volts from a 12 volt source for powering low current devices and experiments. The two transistors may be 2N4401 and 2N4403 or similar for lower power applications or higher....(electronic circuit added 7/03)

High Voltage High Current Power Supply (Aaron Cake) - lots of power form microwave oven transformer (added 04/03/02)

High voltage high frequency Amplifier drives piezoelectric PVDF transducer - 07/24/08 EDN-Design Ideas: Finding wide use in nondestructive testing, a high-voltage, high-frequency amplifier drives a piezoelectric PVDF transducer.....(design idea added 09/08)

High Voltage Low Current Supply - A high voltage power supply is a very useful source which can be effectively used in many applications like biasing of gas-discharge tubes and radiation detectors etc. Such a power supply could also be used for protection of property by electric charging of fences. Here the current requirement is of the order of a few microamps....  (added 10/05)

High Voltage Power Supply using a Highly Integrated DC/DC Converter TPS61040 Slva137.Htm, 0 Kb - TI Application Note  (added 6/06)

High Voltage Regulator is 100% surface mountable - 11/24/99 EDN-Design Ideas: It can be difficult to generatea high-voltage supply from a medium-voltage input, especially if you need a surface-mount design. It is difficult to find surface-mount components with the necessary specs, especially the transformer and power switches. High-voltage surface-mount capacitors can also be hard to locate. The circuit.....(design idea added 2/06)

High Voltage Ring Generator - Supertex Semiconductors (app note added 6/06)

High-Voltage Capacitors, build your own! - (Tony van Roon's electronic design / schematic added 2/06)

High-Voltage DC Generator - (Tony van Roon's electronic design / schematic added 2/06)

How Van De GrAAff Generators work - Most of us have seen the device, known as a Van de Graaff generator that makes your hair stand on end. The device looks like a big aluminum ball mounted on a pedestal. Have you ever wondered what this device is, how it works, why it was invented, or how you might build1-yourself? (added 4/02)

HV generator using a TV Flyback transformer - This HV generator is able to generate a pulsed high voltage which is high enough to draw sparks of more than one cm! All you need is a TV flyback transformer, two 0.47uF/250V capacitors a diac, a 600V..(project added 04/05/06)

HV supply: 12V DC in 12KV out - ASCII format (electronic circuit added 4/05)

HV440 High Voltage Ring Generator - Supertex Semiconductors  (app note added 2/06)


 
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