transformer

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Related to secondary coil: primary winding, secondary winding

transformer

 [trans-for´mer]
an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.
step-down transformer one for lowering the voltage of the original current.
step-up transformer one for raising the voltage of the original current.

transformer

[-fôr′mər]
Etymology: L, transformare, to change shape
an electric apparatus that changes alternating current of one voltage into a different voltage of the same frequency.

transformer,

n an electrical device that increases or reduces the voltage of an alternating current by mutual induction between primary and secondary coils or windings.
transformer, auto-,
transformer, Coolidge filament,
n.pr a step-down transformer that reduces line voltage of 110 volts to 12 volts, which in turn heats the tungsten filament of the Coolidge tube for the production of electrons.
transformer, step-down,
n a transformer in which the secondary voltage is less than the primary voltage.
transformer, step-up,
n a transformer in which the secondary voltage is greater than the primary voltage.

transformer

an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.

transformer fluid
may cause poisoning due to its polychlorinated biphenyl content.
step-down transformer
one for lowering the voltage of the original current.
step-up transformer
one for raising the voltage of the original current.
References in periodicals archive ?
Unlike a transformer, which requires the primary and secondary coils to be very close to each other, a highly resonant wireless power transfer (HR-WPT) system still can achieve good efficiency even with tens of centimeters between primary and secondary coils.
Caption: Figure 9: Pick-up voltage of secondary coil with symmetric magnetic circuit.
It has an influence on the equivalent characteristics of the array of secondary coils.
In turn, this causes a simultaneous pulse in the output voltage of the secondary coil.
It uses an inductive coil placed on the floor of a garage or on a driveway, creating an electromagnetic field that excites a secondary coil attached to the bottom of the vehicle.
As Figure 2 shows, the LF transmitter in the base station and the LF receiver in the tag work like a transformer, where the inductor at the transmitter is the primary coil and the one at the receiver is the secondary coil.
The coupling structure consists of multi-turn spiral coils with high quality factor (Q) values, which consist of a primary coil in the transmitter and a secondary coil in the receiver.
Wireless charging operates in a near field condition in which the primary coil produces a magnetic field that is picked up by the secondary coil in close proximity.
These devices are designed for use in power applications, and they are also suited to switched mode power supplies where the secondary coil can be used as a feedback winding.
Tenders are invited for Primary And Secondary Coil For Electroteknica Make Tsu 3.