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A class-B push–pull amplifier is more efficient than a class-A power amplifier because each output device amplifies only half the output waveform and is cut off during the opposite half. It can be shown that the theoretical full power efficiency (AC power in load compared to DC power consumed) of a push–pull stage is approximately 78.5%.
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But in long-range Wi-Fi, special technologies are used to get the most out of a Wi-Fi connection. The 802.11-2007 standard adds 10 MHz and 5 MHz OFDM modes to the 802.11a standard, and extend the time of cyclic prefix protection from 0.8 μs to 3.2 μs, quadrupling the multipath distortion protection.
Because of the simplicity of the amplifier circuits, amplifiers are of lower cost than re-generators. Before the development of ADSL loop extenders and remote DSLAMs, ADSL was limited to 3–6 miles (5–10 km) from the Central Office depending on the wire gauge used. An ADSL Loop Extender works as an amplifier, boosting the signal level so it ...
Switch-Mode Power Supply Tutorial - Detailed article on DC-DC converters which gives a more formal and detailed analysis of the Buck including the effects of non-ideal switching (but, note that the diagram of the buck-boost converter fails to account for the inversion of the polarity of the voltage between input and output).
This connection forces the op-amp to adjust its output voltage to simply equal the input voltage (V out follows V in so the circuit is named op-amp voltage follower). The impedance of this circuit does not come from any change in voltage, but from the input and output impedances of the op-amp.
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related to: pc to amplifier connection speed boostertemu.com has been visited by 1M+ users in the past month