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class AB amplifier |
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Class AB amplifierSee amplifier classes. class AB amplifier [‚klas ¦ā¦bē ′am·plə‚fī·ər] (electronics) An amplifier in which the grid bias and alternating grid voltages are such that anode current in a specific tube flows for appreciably more than half but less than the entire electric cycle. A transistor amplifier whose operation is class A for small signals and class B for large signals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Traditionally, Class AB amplifiers have been widely used in the audio industry, but Class D amplifiers were limited to applications such as mini-systems and DVD receivers where high fidelity was a second priority to form factor. For instance, large power class AB amplifiers usually need radiator, but the as powerful class D amplifiers do not need it. A typical class AB amplifier would dissipate nine times as much heat as the Class-T design in normal operation, prohibiting the cool and quite operation of the Sonos system. |
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