power amplifier

[′pau̇·ər ¦am·plə‚fī·ər] (electronics) The final stage in multistage amplifiers, such as audio amplifiers and radio transmitters, designed to deliver maximum power to the load, rather than maximum voltage gain, for a given percent of distortion.

Power amplifier

The final stage in multistage amplifiers, such as audio amplifiers and radio transmitters, designed to deliver appreciable power to the load. Power amplifiers may be called upon to supply power ranging from a few watts in an audio amplifier to many thousands of watts in a radio transmitter. In audio amplifiers the load is usually the dynamic impedance presented to the amplifier by a loudspeaker, and the problem is to maximize the power delivered to the load over a wide range of frequencies. The power amplifier in a radio transmitter operates over a relatively narrow band of frequencies with the load essentially a constant impedance. See Amplifier

power amplifier

A unit in a transmitter that receives signals from a modulator and amplifies their power (in stages, if necessary) to a transmission level.

单词	power amplifier
释义	power amplifier power amplifier n (Electronics) electronics an amplifier that is usually the final amplification stage in a device and is designed to give the required power output power amplifier power amplifier [′pau̇·ər ¦am·plə‚fī·ər] (electronics) The final stage in multistage amplifiers, such as audio amplifiers and radio transmitters, designed to deliver maximum power to the load, rather than maximum voltage gain, for a given percent of distortion. Power amplifier The final stage in multistage amplifiers, such as audio amplifiers and radio transmitters, designed to deliver appreciable power to the load. Power amplifiers may be called upon to supply power ranging from a few watts in an audio amplifier to many thousands of watts in a radio transmitter. In audio amplifiers the load is usually the dynamic impedance presented to the amplifier by a loudspeaker, and the problem is to maximize the power delivered to the load over a wide range of frequencies. The power amplifier in a radio transmitter operates over a relatively narrow band of frequencies with the load essentially a constant impedance. See Amplifier power amplifier A unit in a transmitter that receives signals from a modulator and amplifies their power (in stages, if necessary) to a transmission level. MedicalSeeamplifierFinancialSeep/a
随便看	mikhail osipovich dolivo-dobrovolskii mikhail osipovich gershenzon mikhail osipovich koialovich mikhail osipovich mikeshin mikhail ostrogradskii mikhailov mikhailov, adrian mikhailov, adrian fedorovich mikhailov, aleksandr mikhailov, aleksandr aleksandrovich mikhailov, aleksandr dmitrievich mikhailova, nelya mikhailov, boris mikhailov, boris mikhailovich mikhailov criterion mikhailovgrad mikhailovgrad district mikhailovich, draja mikhailov-ivanov, mikhail mikhailov-ivanov, mikhail silverstovich mikhailovka mikhailovka settlement mikhailov, khristo mikhailov, lev mikhailov, lev mikhailovich