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The advantages of the current source are realized in the charging of capacitors used for high-energy storage single event discharges intended for rail guns and other electro kinetic and EMP devices. Even at the time the charging cycle starts the current is controlled and remains relatively constant through the charging cycle. The source can also be short circuited where the current is still in a controlled mode. The charge voltage (vt)= f(t) x I all divided by C. This is a linear relationship and does not require the power wasting series resistance used for voltage sources. The disadvantage is that there is a tendency for the voltage to soar above the design ratings. Operation requires preventative measures such as monitoring the charge voltage or an electronic trigger that shuts the sources off when the desired charging voltage is reached.

The advantage of the voltage source approach is the property of maintaining a constant voltage value within the design limits required as current (load) is being drawn. This is an advantage for electric- field charging when used for accelerators, ion beams, isotope enrichment , particle beams, potential generators etc. The disadvantage is that current is not controlled and overloads can damage the circuitry. Charging capacitors now require a power robbing series resistance to control the current. Charging is exponential. Our HVOLTV high power series utilize a bit of both worlds being voltage and current sources by user selection.

Capacitor chargers can also be used as power supplies.

SPECIAL NOTE ON CHARGING CAPACITORS

DANGER -- charged capacitors can kill you by electrocution, and cause very serious injury from burns and explosions. Do not attempt to use this equipment unless completely educated in high voltage circuitry. These products are intended for experienced laboratory personnel.

Programmable capacitor chargers allow you to dial in the charging voltage and view the event via a front panel analog meter. Capacitors charge from a current source and waste little energy such as that when using a ballast resistor. Ballasted energy is all reactive and never is consumed as real power.

A selector switch is included allowing charge cycle to cease once the preprogrammed value is reached. It can be selected to automatically recycle the charging function keeping the capacitor up to voltage until the charger is turned off or the event occurs.

The charging time can be estimated by calculating the energy in joules of the capacitor being charged and dividing by joules (watt-sec) of the charger. This is only approximate as it assumes linear power being applied throughout the charge cycle.

A charge current control allows adjustment of charging time and is very useful when using smaller capacitance values.

You can more accurately approximate the charging time of your capacitors by using the simple formula t=cv/i, where t = sec, c = capacity in farads, v = voltage, and i = charging current in amps.

Excellent to use for capacitor integrity testing or just as a charger for laboratory functions and experiments.

Optional designs are available in preferred voltage and current values.

Low Power Input, High Voltage Ceramic Capacitor Charger and Test Jig

These low powered devices may be used for battery or solar applications. They are short circuit proof and suitable for capacitor charging without a current limiting resistor. They may also be used as low power high voltage power supplies.

Charges capacitors to rated voltage and allows the determination of excessive internal leakage. Charges up to 20KV. Small lightweight unit measuring 5-½ x 2-¼ x 1-½” converts 12 vdc to over 30kv dc for charging capacitors or just supplying a potential. Can be used with 8 AA alkaline batteries that can produce >90,000 Joules!, or just use our #12DC/.5 wall adapter for 115 vac operation. The charge rate is about 0.25 joule/sec. Higher voltage units available on request. This device is best-suited for use with our ceramic capacitors or similar (taking care to not overcharge the smaller capacitors). For charging our photo flash and electrolytic capacitors (or similar), the CHARGE800V is better suited. An external voltmeter is required to monitor charge. Small value capacitors must be charged by merely tapping the charge push button, as voltage value can be easily and quickly exceeded. Free PDF Instructions PBK50M - Assembled Unboxed Power Supply .....$49.95 PBK50 - Assembled Power Supply ..........................$69.95 12DC/.5 - 12 Volt .5 amp Wall Adapter for PBK50 ....$5.95

Manual Electrolytic Capacitor Charger

Low Power 800V 30mA Manually Programmable Charger for Electrolytic, Photo Flash and Other Equivalent Capacitors

EXTREMELY DANGEROUS PRODUCT ONLY SOLD TO QUALIFIED LABORATORY PERSONNEL. OTHERWISE REQUIRES OUR >> Hazardous Equipment Affidavit << Handy electronic circuit charges up electrolytic capacitors from 100 to 800 volts. Recommended capacities are between 100 to 5,000 mfd. This equates out to over 3000 joules! (Note that the kinetic energy of a .30-06 is 750 joules.) Units are manually voltage controlled by an internal adjustment that presets a charge indicator lamp when the required voltage is reached. This feature helps prevents over charging and potentially dangerous explosions. Charging is current controlled by our unique circuitry. Input power can be C or D cell batteries or 12 vdc adapter for direct 115 vac power. Charging rate is over 25 (watt-sec) joules. Size is 5 x 4 x 2” An external voltmeter is suggested for charging to the desired voltage. Free PDF Instructions DANGER A SERIOUS DEADLY SHOCK HAZARD EXISTS WHEN USING WITH HIGH ENERGY CAPACITORS ABOVE 50 JOULES. CHARGE800V - Assembled ready to use, charges up to 800 volts at 25 joule/sec .......$89.95

High Voltage Board Level Modules for Low Power HV Supplies and Chargers These low powered devices may be used for battery or solar applications. They are short circuit proof and suitable for capacitor charging without a current limiting resistor. They may also be used as low power high voltage power supplies. CHARGE05

Battery powered high voltage module is capable of charging capacitors and other field worthy applications. Operates from an 8 "AA", 12Vdc battery pack and can fit into a 1 ½" plastic tube. Generates 5000 volts DC at 5ma. as shown. This module can supply up to 20,000 volts and is available in the following output levels: CHARGE1 - Plans for 5-20KV (By Download - $3.00) .......$5.00 CHARGE05 - 5000 volts at 5ma ..........................................$49.95 CHARGE05K - Kit/Plans 5000 volts at 5ma ......................$34.95 CHARGE10 - 10,000 volts at 2.5ma ...................................$59.95 CHARGE10K - Kit/Plans 10,000 volts at 2.5ma ...............$39.95 CHARGE20 - 20,000 volts at 1ma .......................................$69.95 CHARGE20K - Kit/Plans 20,000 volts at 1ma ...................$44.95

Automatic Programmable Chargers from 200 to 30,000 Volts

High Power up to 30000 Volt Automatic Programmable Charger for Electrolytic, Photo Flash, High Energy Storage and Other Equivalent Capacitors and combinations. May also be used as a current source power supply.

EXTREMELY DANGEROUS PRODUCT ONLY SOLD TO QUALIFIED LABORATORY PERSONNEL. OTHERWISE REQUIRES OUR >> Hazardous Equipment Affidavit << High power electronic circuit charges up capacitors from 200 to 30000 volts at recommended capacities from .01 mfd and upwards. Example: Charging a 1000 mfd capacitor to 5000 volts equates out to over 12,500 joules! Units are voltage programmable by the setting of the charge voltage control on the front panel. A meter monitors the charging voltage as it builds up to the preset value and then stops. A push button starts the charging event. A second push button aborts the charging function. A charge rate control allows adjustment of charging current/charging time and is especially useful when charging smaller capacitance values.

A selector switch allows manual or automatic charging. Manual charging is where charging ceases once the preset value is reached and operator must keep pushing the charging button to maintain the preset voltage. Automatic charging keeps the capacitor indefinitely at the preset value. Capacitors automatically charge to and maintain this voltage until discharged.

A safety lamp displays any charge over 70 volts that remains on the capacitors.

Charging is lossless and does not use a resistor for current control. It is controlled by our unique circuitry with voltage indicated by a large analog panel meter.

Input power can be either 115/230 vac power. Charging rate is > 200 to 400 watt-sec (joule)/sec. Size is 10.5 x 7 x 3.75" Connections are made via banana jacks and cables as shown.

Free PDF Instructions

DANGER A SERIOUS DEADLY SHOCK HAZARD EXISTS WHEN USING WITH HIGH ENERGY CAPACITORS ABOVE 50 JOULES.

CHARGE1000V - Assembled ready to use, charges 200 to 1000 volts at 300 joule/sec ...........$395.00
CHARGE5000V - Assembled ready to use, charges 1000 to 5000 volts at 400 joule/sec .........$595.00
CHARGE30000V - Assembled ready to use, charges 4000 to 30000 volts at 400 joule/sec .....$895.00

These High Voltage power supplies produce relatively high currents that can be used for experimentation in anti-gravity, BI-FIELD BROWN, force fields, hovercraft research, plasma blasters, drillers, ion motors, propulsion, lightning generation, high ion source, ozone and air purification, electrification, particle acceleration, atom smashing, capacitor charging, general high voltage research, etc.

All power supplies are positive unless requested to be negative.

All New
Low Cost 25 KV DC Power Supply and Charger
Available in Positive or Negative Output

These low powered devices may be used for battery or solar applications. They are short circuit proof and suitable for capacitor charging without a current limiting resistor. They may also be used as low power high voltage power supplies.

At last an affordable virtually indestructible source of high voltage for the hobbyist and professional. Now be able to experiment with continuous high voltage spark discharges, negative or positive ion generation, high speed ion propulsion motors, capacitor charging, powering small anti gravity lifters, animal and pest control, shocking, night vision power supplies, powering Crookes tubes, Geiger tubes, material testing, corona and Saint Elmo's fire, static generation, flocking devices, ion ray guns etc. Circuit produces 25 Kv open circuit with a short circuit current of less than 5 ma. providing a reasonably save high voltage source. Load line is set favorable to ion emitting devices. Circuit has built in open and full short circuit protection and can operate at full output indefinitely. Operation is from any 12 to 15 volt 1 amp dc wall adapter, battery or converter. This device is best-suited for use with our ceramic capacitors or similar (taking care to not overcharge the smaller capacitors). For charging our photo flash and electrolytic capacitors (or similar), the CHARGE800V is better suited. An external voltmeter is required to monitor charge. Small value capacitors must be charged by quickly applying power as voltage value can be easily exceeded.

Device is basically a two part system consisting of a UL approved high voltage high frequency power supply connected into our five stage open multiplier allowing tap downs in 5 Kv increments. This product would cost many times more than our asking price and is available in volume or individual purchases.

HV25 : Plans (By Download - $3.00) .................................................................................................$6.00
HV25K : Kit of High Frequency Power Supply and Parts to Make the Multiplier ......................$39.95
HV250(+) : Assembled Multiplier with High Frequency Power Supply, Positive Output ........$64.95
HV250(-) : Assembled Multiplier with High Frequency Power Supply, Negative Output .......$64.95
14DC/1 : 14volt 1amp Adapter for 25KV Power Supply ..................................................................$9.95

50KV/5ma Adjustable Current Sourced Power Supply and Charger We now offer our low cost 50KV/5ma adjustable current sourced power supply intended for serious experimentation in anti gravity research, EMP, lossless capacitor charging and other related applications. Two part system consists of CONTROL CONSOLE attached to the VOLTAGE MULTIPLIER via an umbilical cable. Circuit includes an over voltage shutdown with full short circuit protection and a voltage indicating analog meter. Basic 115 vac at 60 hz operation (220 at 50 hz operation on request). HVOLT5V : Plans (By Download - $7.00) .............................................$15.00 HVOLT30V : 30KV@6mA, Positive Output, Ready to Use ..............$699.95 HVOLT50V(+) : 50KV@4mA, Positive Output, Ready to Use .........$999.95 HVOLT50V(-) : 50KV@4mA, Negative Output, Ready to Use ........$999.95

Higher Powered Units

Note: these devices are made to order and require 2-4 weeks build & test time before we can ship them to you. Adjustable Regulated Voltage up to 400,000 DC Volts Positive or Negative Available Current over 2000 micro-amps Choice of 115 / 220 VAC or 12 VDC For Field Use Two Part Construction Consisting of 24" to 48" Cylindrical Dry Fill Multiplier Tower-Oil Fill Option Available High Current Spark Switch/ Safety Gap High Voltage Indicating Panel Meter Optional Designs Available HVOLT100V - 100KV@3MA (Ready to Use) ......................$1995.95 HVOLT200V - 200KV@1.5MA (Ready to Use) ...................$3495.00 HVOLT300V - 300KV@1MA (Ready to Use) ......................$5495.00 Oil Filled Resistive Loads 33MEG - 33 Megohm, 100,000 Volt, 3000 Microamp, 300 Watt Insertable Element .............$295.00 133MEG - 133 Megohm, 200,000 Volt, 1500 Microamp, 300 Watt Insertable Element ........$395.00 OILBASE - Base and stand with terminations for above elements. 30" height. Uses transformer or vegetable oil, not included ......................................................$150.00 Higher Powered Devices Available On Request, Please Email Us With Your Requirements.

High Voltage Engineering Design Services	High Voltage Design for Research, Trade, Education and Demonstration
We can design or assist in development of high voltage, high current power supplies, pulse conditioning, high energy, EMP, Marx generators, Tesla coils, voltage multipliers, rail and electrokinetic guns, etc. Our facilities are also available for designing and building action displays for museums and electrical demonstrations.
We Will Buy Your Used or Surplus High Voltage Equipment We are constantly evaluating and purchasing used and surplus high voltage devices and components.
You may contact us or Call: 1-603-673-6493 or Fax: 1-603-672-5406.
Offshore Manufacturing

Orders: 603-673-6493 | Fax: 603-672-5406 Email: Sales & Orders | Email: Tech Support

PO Box 716, Amherst, NH 03031-0716