Pulsed power

Pulsed power

Pulsed power is the term used to describe the science and technology of accumulating energy over a relatively long period of time and releasing it very quickly thus increasing the instantaneous power.


Steady accumulation of energy followed by its rapid release can result in the delivery of a larger amount of instantaneous power over a shorter period of time (although the total energy is the same). Energy is typically stored within electrostatic fields (capacitors), magnetic fields (inductor), as mechanical energy (using large flywheels connected to special purpose high current alternators), or as chemical energy (high-current lead-acid batteries, or explosives). By releasing the stored energy over a very short interval (a process that is called energy compression), a huge amount of peak power can be delivered to a load. For example, if one joule of energy is stored within a capacitor and then evenly released to a load over one second, the peak power delivered to the load would only be 1 watt. However, if all of the stored energy was released within one microsecond, the peak power would be one megawatt, a million times greater. Examples where pulsed power technology is commonly used include radar, particle accelerators, ultrastrong magnetic fields, fusion research, electromagnetic pulses, and high power pulsed lasers.


Pulsed Power was first developed during World War II for use in Radar. A massive development program, similar in scale to the Manhattan Project, was undertaken to develop radar. Radar requires short high power pulses. After the war development continued in other applications leading to the super pulsed power machines at Sandia National Laboratories.


* [http://www.abb.ch/product/ap/db0003db004291/c12573e7003304adc1256ef6002b4271.aspx' ABB Pulsed Power]

ee also

* Marx generator
* Explosively pumped flux compression generator
* Compulsator
* Z machine
* Particle accelerator
* Pulse Forming Networks (PFN's)
* "Magnet kickers"
* Electromagnetic forming
* Pinch (plasma physics)
* Thyratron
* Triggered spark gap
* Ignitron
* Crossatron
* Linear Transformer Driver
* Power (physics)

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Power (physics) — In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts the more wattage, the more power, or what is the …   Wikipedia

  • Power Modulator — A power modulator is an electronic device that stores energy over a long period of time, but releases this energy over a short period of time. Power modulators are a special class of pulsed power devices that provide high peak power electrical… …   Wikipedia

  • Pulsed laser deposition — (PLD) is a thin film deposition (specifically a physical vapor deposition, PVD) technique where a high power pulsed laser beam is focused inside a vacuum chamber to strike a target of the desired composition. Material is then vaporized from the… …   Wikipedia

  • Pulsed inductive thruster — Pulsed inductive thrusters (or PITs) are a form of ion thruster, used in spacecraft propulsion. A PIT uses perpendicular electric and magnetic fields to accelerate a propellant. A nozzle releases a puff of gas (usually ammonia or argon) which… …   Wikipedia

  • Pulsed energy weapon — A pulsed energy weapon is any weapon that: *Uses pulses of electricity to fire a projectile, or *Operates by transferring electric current to its target.These weapons often use large Capacitors to build up a charge which is released when the… …   Wikipedia

  • Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …   Wikipedia

  • Power MOSFET — A Power MOSFET is a specific type of Metal Oxide Semiconductor Field Effect Transistor (MOSFET) designed to handle large power. Compared to the other power semiconductor devices (IGBT, Thyristor...), its main advantages are high commutation speed …   Wikipedia

  • Microwave Power Module — A Microwave Power Module (MPM) is a microwave device used to amplify radio frequency signals to high power levels. It is a hybrid combination of solid state and vacuum tube electronics, which encloses a solid state driver amplifier (SSPA),… …   Wikipedia

  • High Power Impulse Magnetron Sputtering — (HIPIMS, also known as High Impact Power Magnetron Sputtering and High Power Pulsed Magnetron Sputtering, HPPMS) is a method for physical vapor deposition of thin films which is based on magnetron sputter deposition. HIPIMS utilises extremely… …   Wikipedia

  • Compensated pulsed alternator — A compensated pulsed alternator, also known by the contraction compulsator, is a form of power supply. As the name suggests, it is an alternator that is compensated (see below) to make it better at delivering pulses of electrical energy than a… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.