低噪声放大器和下变换器内置于连接到馈电的一个设备。
A combination Low Noise Amplifier and down converter built into one device attached to the feed.
最后对串并联谐振变换器进行了仿真和试验，结果表明实现了软开关条件下变换器输出的连续可调节。
The feasibility of continuous-adjustable output converter based on soft-switching has been analyzed by AC analytical method and EDF technique and proved by simulation and experimental results at last.
在基于中频采样技术的数字中频接收机中，怎样在AD变换器位数受限的情况下实现较大的系统瞬时动态范围是系统设计中的一个重要问题。
In digital IF receiver based on IF sampling technology, one important issue of system design is how to realize wide instantaneous dynamic range, when the available digits of AD converter is limited.
导出了矩阵变换器的交-交直接变换控制规律和双空间矢量PWM调制策略，建立了交-交直接变换控制方式下矩阵变换器的数学模型。
The AC-AC direct transformation control and the double-space-vector PWM scheme of the matrix converter are deduced, mathematic model of space vector modulation (SVM) matrix converter is built.
结果表明，该控制方案能在恒定开关频率下对变换器实现高效率的软开关控制。
The results show that this control scheme could realize the high efficiency soft-switch control under the constant switching frequency to the converter.
该文主要研究在一定条件下可实现输出恒流特性的LCL谐振变换器及其优化设计。
LCL resonant converter behaving as a current source in certain condition and its optimization design method was investigated in this paper.
信号变换器可以在不使用发电机的情况下对RPM转盘和SPM泵进行测量。
The AOI Signal Converter measures rotary table RPM and pump SPM without the use of a generator.
以隔离型对称半桥双向变换器为对象，建立了以原边为参考的4种模式下的简化电路，提出了结合开关函数的状态空间平均模型的建立方法。
For isolated-type symmetry half-bridge bidirectional converter with phase-shifted control, a simplified circuit under 4 modes using the primary windings of transformer as reference object is built.
在多输出变换器中，理想情况下，辅助输出电压与主输出电压满足变压器匝数比的关系。
In ideal multiple-output converter, the ratio of output voltage equal to the ratio of their turns.
提出一种双零电流开关pwm升压斩波变换器电路，使得主开关和辅开关的开通和关断都在零电流条件下进行。
A novel zero current Transition (ZCT) PWM Boost Converter Scheme proposed in this paper enables all main and auxiliary switches to be turned on and to be turned off under zero current conditions.
介绍了一种反激式变换器零电压关断缓冲电路，同时分析了其工作原理。最后简要地介绍一下其设计方法。
An introduction to a type of lossless snubber circuit applicable to flyback converter was given, and its working principles were analyzed.
论文采用了平均电流模式下的双闭环控制，提高了变换器的动态性能和稳态性能。
The paper takes advantage of a double closed-loop control method based on average-current mode and improves the static and dynamic performance of the converter.
通过分析变换器在不同开关相角下滤波电感电流脉动的大小，得出了在同样的电流脉动要求下，采用交错开关方式与采用传统开关方式相比，滤波电感可减小的幅度。
By analyzing the current ripple of the filter inductor on the condition that the phase shift is different, the reduced value of the current ripple with the interleaving modulation strategy can be got.
论文详细地分析了倍流整流变换器在连续情况下的静态特性和变压器漏感对变换器工作性能的影响。
The steady characteristics and the influence of the leakage magnetism to the converter under CCM (Continuous Conduction Mode) are analyzed in detail.
本文提出一种新的非线性控制方法，使得PWM开关变换器的输出电压，在负载干扰和电源电压干扰下，具有优良的动态特性。
Under this control strategy, the PWM converter output voltage characteristics is improved if load current vary and line voltage vary.
在开关频率较低的情况下，大功率PWM变换器的谐波可能会更大，并对电力电子设备造成损坏或产生电磁干扰影响通讯。
The harmonic distortions of the high power PWM converters increase more with low switching frequency, which may destroy the devices used in the system and result in electromagnetic interference (EMI).
建立了基于功率变换器的有源式超级电容器-蓄电池混合储能系统的模型，并对控制环节进行了设计，提出了一种在脉动负载下蓄电池恒流输出的控制策略。
A mathematical model of the actively controlled battery-ultracapacitor hybrid energy storage system based on a power converter was set up, and the control loop was designed.
在非对称输入电压情况下，对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析，提出了利用时变调制比改善输出电压波形的方法。
The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time-variant modulation ratio method is proposed.
在硬开关状态下，PWM功率变换器的致命弱点是开关管开关损耗随开关频率成正比增加，不利于系统的集成和转换效率的提高。
The shortcoming of hard switch is that the power loss of power devices increases with the switching frequency, which is no good for system integration and improvement of conversion efficiency.
由DSP发出移相控制信号并经芯片IR 2110驱动放大，在移相驱动信号的控制下可以实现全桥变换器主功率开关的ZVS。
The DSP sends out the phase shifting control signal and then that amplified by IR2110 chip. It can realize ZVS of the full bridge converter main power switch by the phase shifting drive control.
分析了理想条件下开关电源电感电流连续的一般规律，并给出了常用变换器在三种工作状态下的调节特性。其中导出的公式可用于变换器电路设计和计算机辅助设计。
The general theories of the inductor currents on three states and the regulating features of common convertors under idea conditions are described and design formulae are derived from the analyses.
分析了理想条件下开关电源电感电流连续的一般规律，并给出了常用变换器在三种工作状态下的调节特性。其中导出的公式可用于变换器电路设计和计算机辅助设计。
The general theories of the inductor currents on three states and the regulating features of common convertors under idea conditions are described and design formulae are derived from the analyses.
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