结合射频E类功率放大器的结构特点，采用CMOS工艺，达到了在大的输出功率范围内保持持续稳定高效率的目的。
The controller combines parallel amplification and drain modulation of the CMOS class-E power amplifier to provide high efficiency over a broad range of output powers.
介绍起重冶金电机S4工作制，不同负载持续率及不同起动次数时，确定其输出功率的试验方法。
This paper introduces duty type S4 of motor for crane and metallurgical applications and the test method to determine outputs of the motor at varied cyclic duration factor and starting times.
介绍起重冶金电机S4工作制，不同负载持续率及不同起动次数时，确定其输出功率的试验方法。
This paper introduces duty type S4 of motor for crane and metallurgical applications and the test method to determine outputs of the motor at varied cyclic duration factor and starting times.
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