Sentences with phrase «charging capacitors»

• The battery to activate a radio after 100 years in a sealed nuclear dump involves firing a magnet along a rod through a coil, charging capacitors in the process.

He knew that the charge a capacitor could store depended on the surface area of its electrodes.

This week's paper describes a self - powered tag that charges a capacitor as the fish moves, and can only beep if the fish is moving.

It also charged capacitors that powered a portable LCD, a calculator and a wrist watch.

Their system consists of two ultra-low power current sources: one that charges a capacitor in a fixed amount of time regardless of temperature, and one that charges at a rate that varies with temperature — slower at lower temperatures, faster at higher temperatures.

The greater the time spent on winding, the more charge the capacitor will store and the longer the LED will stay lit after winding has stopped, up to the maximum ten minutes.

So the result of an electric field in a charged capacitor is a mechanical distortion of the molecules or atoms of the substance.

Not exact matches

In tests, however, the leaf - based devices turned out to be supercapacitors, much better at storing charge than similar capacitors made from coal.

The pores give the microspheres a high surface area, which allows capacitors made of the material to store more charge.

The memory's capacitors are so small that they each require only about 40,000 electrons to charge up.

When voltage is applied to the capacitor, electric charges of equal magnitude, but opposite polarity, build up on each plate.

Charge up a cell's capacitor and it represents a 1.

Supercapacitors can typically store 10 - 100 times as much energy as an ordinary capacitor, and can accept and deliver charges much faster than a typical rechargeable battery.

The materials generate static as they rub together while the circuitry acts like a variable capacitor, storing up the electrical charge generated.

By contrast, capacitors, which are common in electronics, are short - term stores of electrical energy that charge almost instantaneously but hold little energy.

As the primary coil spins, its capacitors switch on and off rapidly, creating an oscillating charge.

Unfortunately, typical capacitors have been able to store only tiny amounts of charge, making them useless for driving the power - hungry engines these cars use.

Relationships between these variables led to the classic components of a circuit — resistor, capacitor, inductor — with the exception of one pairing: charge + flux.

How it Works A capacitor is a device that stores electric charge.

The components of StimDust include a single piezocrystal, which is the antenna of the system, a 1 - millimeter integrated circuit and one charge storage capacitor.

Firing up the lasers When researchers attempt ignition, a bank of capacitors charges up and triggers a flash of light at the master oscillator that generates 192 laser beams.

When a voltage is applied, the configuration behaves like a capacitor, with positive and negative charges accumulating on either side of the insulator.

Real neurons have a voltage across their outer membrane, which Spikey mimics using capacitors: components that store charge.

All the vehicles began the endurance event having fully charged their accumulators (whether batteries or capacitors) from the grid, as is the norm for a plug - in hybrid vehicle.

Sticking to the Infrastructure Given the shortcomings of both batteries and capacitors, some engineers say the true solution lies in better infrastructure: They want to make electric - charging spots as ubiquitous as gas stations.

A capacitor - powered cell phone could be charged in minutes or seconds instead of hours.

He flashes a grin and repeats the sequence a few times, explaining: «Fundamentally, our devices are capacitors — two charged parallel plates sandwiching a dielectric material.

Unlike chemical - based rechargeable batteries, capacitors charge fast and release all their energy at once when triggered.

For example, when the temperature falls, the temperature - dependent current source will charge slower, and the feedback loop compensates by switching to a smaller capacitor, which dictates a particular digital readout.

A built - in digital feedback loop equalizes the charging times by reconnecting the temperature - dependent current source to a capacitor of a different size — the size of this capacitor is directly proportional to the actual temperature.

For example, every handheld device has hundreds of capacitors, which are dielectric components that can store and manage electric charge.

Cross thinks that if he can control the way the ribbons form and stack, he might be able to use them as transistors (electrical switches), capacitors (devices that store electrical charge) or connections between electrically conductive graphene sheets.

Traditional capacitors store energy and release it quickly (as in a camera flash), unlike common lithium - ion batteries that take a long time to charge and release their energy as needed.

He said LIG can easily be turned into a supercapacitor, which combines the fast - charging, power - storing capacity of a capacitor with the higher energy - delivering capability, though not yet as high as in a battery.

Rice's microsupercapacitors charge 50 times faster than batteries, discharge more slowly than traditional capacitors and match commercial supercapacitors for both the amount of energy stored and power delivered.

He has further developed soft landing techniques to investigate charge retention properties of metal clusters that determine whether they can be used as molecular capacitors in organic electronics or in high - density memory devices.

Because capacitors pass AC but block DC signals (when charged up to the applied dc voltage), they are often used to separate the AC and DC components of a signal.

And this Flux Capacitor USB car charger sports two USB ports for the driver to charge multiple devices before jumping through time.

The Flux Capacitor is adjustable so that all of the devices can be snugged in for easy charging.

Powerpoint covering the content for the graphs for capacitors charging and discharging and notes on dielectric heating application (including link to a useful animation).

There is a single capacitor charged to about 300 - 500V.

I don't believe charging of capacitors could occur for more than a second, or else the capacitors would need to be very, very large indeed.

If you short the capacitor to discharge and don't get a healthy spark, you'll have instant confirmation, and I assume it could lose its ability to hold a charge without looking totally scorched.

It will reset the ECU after a couple minutes (when the capacitors loose their charge).

So we start checking fuses and find that there is no fuse in the slot for the charging socket so i put a fuse in there still showing battery light after this long story my question is should I go buy the correct smaller battery and a capacitor and see if the capacitor I will hold a charge?

The role of this motor is to act as a generator during deceleration to charge the super capacitors, and during acceleration to directly power the rear wheel motors.

This makes the car a very - mild hybrid: Regenerative braking charges a large capacitor, which helps power the car's accessories, but not the drivetrain, and adds 1 mpg to EPA ratings.

Mazda says a full capacitor charge is enough to run the vehicle's electrical systems for a minute or so.

Batteries generally charge comparatively slowly and inefficiently; it's not a major drawback during constant operation, but when just a few seconds of regenerative braking are being captured, a battery is less efficient than Mazda's electric double - layer capacitor (EDLC), which recharges fully within only a few seconds.

Compared to a standard nickle - metal hydride battery, a super capacitor system has more energy density and can charge and discharge much more quickly.