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HIGH-EFFICIENCY PULSE-WIDTH MODULATOR FOR LINEAR MODULATION OF HIGH-FREQUENCY KEY MODE POWER AMPLIFIERS
HIGH-EFFICIENCY PULSE-WIDTH MODULATOR FOR LINEAR MODULATION OF HIGH-FREQUENCY KEY MODE POWER AMPLIFIERS
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机译:用于高频键模功率放大器线性调制的高效脉冲宽度调制器
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摘要
FIELD: radio engineering, communication.;SUBSTANCE: invention relates to radio engineering and can be used in power amplifiers of transmitters. A modulator for high-frequency key mode power amplifiers includes an envelope amplifier, a PWM converter, a high-voltage output stage, an output low-pass filter, an output stage driver which enables modulation of the high-voltage output stage and galvanic isolation between the PWM converter with low supply voltage and the high-voltage output stage.;EFFECT: high energy-efficiency and high linearity.;4 dwg
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