This OAP is constructed by three parts: a folded-cascode amplifier, a biasing circuit and a CMFB circuit. 该运算放大器主要由三个折叠式共源共栅结构的运放、一个偏置电路和一个共模反馈电路组成。
Peaking Current Mirror-Biasing Reference Circuit Working in Subthreshold Region 工作于亚阈值区的偏置基准电路-峰值电流镜
A CMOS Second-Generation Current Conveyor Based on a Novel Biasing Circuit 一种基于新型偏置电路的CMOS第二代电流传送器
Based on the traditional Gilbert mixer, the proposed mixer makes many improvements upon it, including the uses of folded topology, inverter, self-biasing, constant Gm biasing circuit and so on. 该混频器基于传统的吉尔伯特混频器,但又对它进行了多方面的优化,包括采用折叠式结构、反相器、自偏置和恒定跨导偏置电路等。
The stability of the oscillator output frequency is guaranteed by the design of the supply-independent biasing circuit. Low power binary-weighted current sources provide small parasitic parameters, good current splitting precision, and small chip area. 输出电流与电源无关的偏置电路设计保证了振荡器输出频率的稳定,低功耗的二进制权电流电路提供了很小的寄生参数、较高的电流精度和很小的芯片面积。
After select the most suitable topology structure of circuit, we simulate the biasing circuit, input and output matching circuit. 在选定合适的拓扑结构后,对放大器的静态偏置点、输入输出匹配电路进行仿真。
Stabilization of DC biasing, and signals deviation adjustment and compensation circuit are adopted in the quadrature modulator, so the problems on the incompatibility of channel I& Q in amplitude and phase are effectively solved. 正交调制部分采用误差调整与补偿电路,不仅稳定了直流偏置,而且还对信号进行了调理,从而有效控制了I,Q通道的幅相不一致性。
First, we analyse the power amplifier in theory in the circuit mode, biasing point linearity, thermal stability, input and output matching circuit. 论文首先从理论的方面对放大器的设计进行分析,对放大器的电路模型、偏置点、线性、热稳定性、输入输出匹配进行理论上的分析。
The thermal effect of LDMOS power amplifiers deprives its performances. On the basis of the self-heating effects model of LDMOS FET, analyze and simulate a design of biasing circuit minimizing thermal effect. LDMOS功率放大器的热效应会导致放大器的性能恶化,在LDMOS场效应管自热效应模型的基础上分析和仿真了一种最小化器件热效应的偏置电路设计。
A constant gm biasing circuit is used to maintain a relative constant gain over process, voltage and temperature variations. 恒定跨导偏置电路的使用减小了低噪声放大器的增益随工艺、电压、温度变化的偏差。
The application of the adaptive biasing circuit improves the linearity of the circuit. 自适应偏置技术的应用改善了电路的线性度。
The common source circuit of the first stage adopts a self-bias circuit, and the second stage circuit adopts an adaptive biasing circuit. 电路第一级共源电路采用自偏置电路提供偏置,第二级采用自适应偏置电路提供偏置。
The parasitic capacitor of transistor, matching network, biasing circuit and duty cycle are the key factors to the performance of PA. Based on the analysis above, this paper has done a great deal of research and discussion of the E-type PA in detail. 影响其性能的关键因素主要有晶体管寄生电容、匹配网络、偏置电路、开关占空比等。本论文就上述课题对E类功率放大器进行详细的研究和讨论。
Secondly, separate the system into dc biasing circuit, filter circuit, linearization technology, cooling technology, and broadband matching network. In detail describe the function, circuit structure, and design method of each module. 其次,将系统分为偏置电路、滤波电路、线性化技术、散热、以及宽带匹配网络等模块,详细叙述了每个模块的作用、电路结构和设计方法。