transformer

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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 ?
During the Period, mainly attributable to the increase in sales of switching power supply units to various customers, especially that of mobile phone customers, revenue from switching power supply units for consumer products increased by 15.
The Group also plans to pursue strategic expansion opportunities overseas, in order to enhance its position as one of the major switching power supply unit manufacturers in the PRC.
World AC/DC Switching Power Supply (SPS) Market, part of the 9919 subscription, offers a comprehensive analysis of the global AC-DC SPS market segmented by power range into low (1 to 300 watts), medium (301 to 750 watts), high (751 to 1,500 watts), very high (1,501 to 2000 watts), and extremely high (2,001 and above watts) range.
the leading seller of ultra-miniature, high-efficiency power supplies, has set a new industry standard with the introduction of the world's smallest and most efficient medically certified 110-watt AC/DC switching power supply, the company announced today.
Headquartered in Tokyo, Densei-Lambda handles research and development for DC-DC converters and switching power supply product development, manufacturing and purchasing.
The charger uses a lightweight switching power supply that allows it to operate on domestic and international voltages.