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- 000 02119cam a2200349 i 4500
- 008 150129s2015 enka b 001 0 eng
- 020 __ |a 9781107059177 : |c CNY658.74
- 040 __ |a DLC |e rda |b eng |c DLC |d YDX |d CDX |d YDXCP
- 050 00 |a TK7871.58.P6 |b M38 2015
- 082 00 |a 621.3841/31 |2 23
- 100 1_ |a McCune, Earl, |e author.
- 245 10 |a Dynamic power supply transmitters : |b envelope tracking, direct polar, and hybrid combinations / |c Earl McCune.
- 260 __ |a Cambridge : |b Cambridge University Press, |c c2015.
- 300 __ |a xxiii, 470 pages : |b illustrations ; |c 26 cm.
- 336 __ |a text |b txt |2 rdacontent.
- 337 __ |a unmediated |b n |2 rdamedia.
- 338 __ |a volume |b nc |2 rdacarrier.
- 490 1_ |a The Cambridge RF and microwave engineering series.
- 504 __ |a Includes bibliographical references and index.
- 520 __ |a "Power is dissipated (lost) when this current flows through any resistance, which includes the amplifier's transistor. This dissipated power is the product of the current in the load times the voltage difference between the supply voltage to the amplifier and the output signal voltage. When the voltage supplied to the amplifier is a constant value, and by far the most common design practice, the situation in Fig. 1-2a results. Power dissipation in the amplifier is maximum when the output signal voltage is 1/2 of the supply voltage. When the output signal voltage is higher, even though the current value is larger the voltage drop is less and the power dissipation is lower. Similarly, when the output signal voltage is small, even though the voltage drop is now large the current in the load is smaller and again the power dissipation is lower"-- |c Provided by publisher.
- 650 _0 |a Power amplifiers.
- 650 _0 |a Amplifiers, Radio frequency |x Power supply.
- 650 _0 |a Radio |x Transmitters and transmission.
- 650 _0 |a Electric power supplies to apparatus.
- 830 _0 |a Cambridge RF and microwave engineering series.