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信号电路     
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  signal circuit
     The transceiver interface circuit in this dissertation is the most important part of USB2.0 interface which is a high speed mixed signal circuit, and it is realized by TSMC 0.25um mixed CMOS process technology.
     本文收发器接口电路是USB2.0接口芯片中的最关键的高速模拟与混合信号电路,设计基于TSMC 0.25um CMOS混合信号工艺。
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     Design of signal circuit used for grating torque sensor
     光栅扭矩传感器的信号电路设计
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     Signal Circuit Design For Micro Machined Capacitance Accelerometer
     微机械电容式加速度传感器信号电路设计
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     RTD-based circuits have important applications in digital circuit,mixed signal circuit and optoelectronic system with the characteristics of ultra-high speed,low power and self-latching.
     RTD基集成电路所具有的超高速、低功耗和自锁存的特性,使其在数字电路、混合信号电路以及光电子系统中有着重要的应用。
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     It is designed for GB10235-88. The anti-shock electricity-saving device for arc welding transformer equiped with a MAW transformer has a unique starting signal circuit. The main parameters are ensured (starting sensitivity and starting time) and come up to the international required values.
     针对GB10235-88而设计的,与手弧焊变压器配套使用的弧焊变压器防触电节电装置,具有独特的一次侧采样起动信号电路,该装置仅与弧焊变压器初级有接线联系,同时保证了关键参数(起动灵敏度和起动时间)达到国际要求值。
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  signal circuits
     The strobe signal circuits in Z80 special microcomputer
     Z80专用微机的选通信号电路
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     Trouble Analysis of lighting and Signal Circuits in SFJ1010 Automobile
     汉江牌SFJ1010型汽车照明信号电路故障的分析
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     designs switching signal circuits.
     设计了系统的开关信号电路
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     S O Itechnology alsoappropriate for the Gigabit D R A M generation ,the system on chip ,and radiation hard circuits , M E M S,ana log/ mixed signal circuits,sm art power I C,portable teleco m m unication systems,high tem perature electronicsand quantu m devices .
     同时,该技术也适用于千兆位 D R A M 、片上系统、以及抗辐射加固电路、微电子机械系统、模拟/ 混合信号电路、智能功率集成电路、便携式通讯系统、高温电子学和量子器件等。
短句来源
     Among the many testing methods of analog and mixed signal circuits booming up in recent years, the pseudorandom testing technique is easier to generate testing stimuli and the current-based testing method could magnify the response differences between fault-free circuits and faulty circuits.
     近年来提出的很多种模拟及混合信号电路测试方法中,伪随机测试法易于产生测试激励,基于电流的测试法能使正常电路和故障电路的频率响应的差别增大。
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  signal equivalent circuit
     LLC-TYPE SERIES PARALLEL RESONANT CONVERTER'S SMALL SIGNAL EQUIVALENT CIRCUIT MODEL
     LLC一型串并联谐振变换器小信号电路模型
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     Small Signal Equivalent Circuit Model and Modulation Properties of Vertical Cavity-Surface Emitting Lasers
     垂直腔面发射激光器的小信号电路模型和调制特性(英文)
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     Small signal equivalent circuit model and modulation properties of vertical cavity surface emitting lasers(VCSEL's) are presented. The modulation properties both in analytic equation calculation and in circuit model simulation are studied. The analytic equation calculation of the modulation properties is calculated by using Mathcad program and the circuit model simulation is simulated by using Pspice program respectively.
     给出了垂直腔面发射激光器的小信号电路模型和调制特性 ,调制特性用解析计算和电路模型模拟两种方法得到 ,解析计算和电路模型模拟的结果一致 ,实验证实了电路模型的正确性
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  “信号电路”译为未确定词的双语例句
     Finally methods of testing in mixed-signal circuits are researched.
     最后本文对混合信号电路边界扫描测试中测试方法进行研究。
短句来源
     The primary functions and interfaces of PM8316are introduced in this paper,the circuit figures of the chief signals of PM8316in the SDH terminal equipment is also presented.
     文中介绍了PM8316的主要功能和接口 ,给出了它在SDH终端设备中的主要信号电路框图。
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     The Substrate Noise Coupling Resistance Macromodel for Deep-submicron CMOS Mixed-Signal ICs
     深亚微米CMOS混合信号电路衬底噪声耦合宏模型
短句来源
     The main contents are as follows:The structure of mixed-signal circuit which newly-defined in IEEE1149.4 Std is analyzed in detail, especially anolog boundary module and test bus interface circuit.
     主要研究的内容以及所作的工作如下:详细分析了IEEE1149.4标准中针对混合信号电路测试新增的结构,即模拟边界模块及测试接口电路。
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     DDesign About Circuit For Modulated Signal of FPGA
     基于FPGA的调制信号电路设计
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  signal circuit
By using AC small signal circuit model and appropriate numerical simulation method, the dynamic operating characteristics are investigated, and some influenced factors are analyzed.
      
For validation, the strategy has been successfully applied to several mixed-signal circuit examples.
      
This paper presents an investigation of dynamically reconfigurable mixed-signal circuit constructed using a digital control system and the new technology of Field Programmable Analog Arrays (FPAA).
      
An Approach for Determining PHEMT Small-Signal Circuit Model Parameters Up to 110GHz
      
The rapidly evolving role of analog signal processing has spawned off a variety of mixed-signal circuit applications.
      
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  signal circuits
Noise caused by the electromagnetic coupling of digitally injected signals into substrate is a key problem in the design of large mixed-signal circuits.
      
With the increasing complexity of analog/mixed-signal circuits, test program development time is now a major obstacle in achieving shorttime-to-market, while production testing cost is a prominent factor in total production cost.
      
The problems of testing mixed-signal circuits are becoming increasingly intractable as circuit density and functionality increase.
      
Although VHDL has been primarily devoted to digital circuit design, it can also be applied to certain mixed-signal circuits.
      
This survey paper reviews work to date in the area of programmable analog and mixed-signal circuits.
      
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  signal equivalent circuit
A low-signal equivalent circuit of a GaAs MESFET is suggested.
      
A model of enhancement-mode GaAs MESFET (EFET) for low power consumption and low noise applications has been obtained by using a small-signal equivalent circuit whose component values are derived from the physical parameters and the bias condition.
      
Accurate modeling and efficient parameter extraction of a small signal equivalent circuit of MOS transistors for high-frequency operation are presented.
      
The small-signal equivalent circuit is based on the quasi-static approximation which was found to be adequate up to 10 GHz for MOS transistors fabricated by a 20 GHz cutoff frequency technology.
      
This paper describes a scalable small-signal equivalent circuit for 0.25 μm gatelength Double Heterojunction delta-doped PHEMTs.
      
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This paper describes the circuit design of a 4GHz uncooled paramp for satellite communication earth station. The skin effect of the varactor series resistance is considered and the designing approach of the double-tuned signal circuit discussed as well. The paramp includes a varactor with a zero bias cut-off frequency of greater than 650GHz, a 57GHz Gunn oscillator as a pump source and a low loss four-port circulator with the insertion of 0.1-0.12dB. The first stage paramp is cooled down to -40℃ by means of...

This paper describes the circuit design of a 4GHz uncooled paramp for satellite communication earth station. The skin effect of the varactor series resistance is considered and the designing approach of the double-tuned signal circuit discussed as well. The paramp includes a varactor with a zero bias cut-off frequency of greater than 650GHz, a 57GHz Gunn oscillator as a pump source and a low loss four-port circulator with the insertion of 0.1-0.12dB. The first stage paramp is cooled down to -40℃ by means of thermoelectric device. The results obtained are: the noise temperature of the paramp itself is 23-25°K at center frequency; the overall noise temperature of the system is 37-47°K with the consideration of the loss of the input circuit and the contribution of the post-stage.

本文叙述了用于卫星通讯地面站的4千兆赫非冷参放的电路设计,考虑了变容二极管串联电阻趋肤效应的影响以及讨论了双调谐信号电路的设计方法.参放采用零偏压截止频率高于650千兆赫的变容二极管;57千兆赫耿氏振荡器作泵源;低损耗四端环行器和热电致冷到-40℃的环境下工作.获得的结果是:在中心频率下参放本身的噪声温度为23~25°K,考虑到环行器、输入电路损耗及后级贡献,整个系统噪声温度为37~47°K.

A new circuit of angle transducer is described. It is a phase-in-verted rectifying and filtering circuit consisting of a selsyn, diodes, resistors andcapacitors etc. The transducer can change angle displacement into d. c. voltage. Thereis a relationship of sine function between d. c. voltage output and angle displace-ment input in every operating intervals. The main advantage of the transducer is thatit can eliminate the null-position voltage, which exists in the form of the residuala. c. voltage output in the...

A new circuit of angle transducer is described. It is a phase-in-verted rectifying and filtering circuit consisting of a selsyn, diodes, resistors andcapacitors etc. The transducer can change angle displacement into d. c. voltage. Thereis a relationship of sine function between d. c. voltage output and angle displace-ment input in every operating intervals. The main advantage of the transducer is thatit can eliminate the null-position voltage, which exists in the form of the residuala. c. voltage output in the case of using selsyn only, therefore the precision of themeasurement can be greatly improved. Besides, the circuit structure of the transdu-cer is simple. It is easy both in implementation and regulation. It is cheap in cost.In short, it is a simple, reliable, economical and practical angle transducer. In thispaper, the output characteristic (voltage-angle characteristic) of the circuit of angletransducer is theoretically analysed in detail and is studied by experiments. Quanti-tative relationships between output characteristic and parameters of the circuit areobtained, and simple and practical formulas for design are derived. For example,output characteristic is analysed and operating intervals are divided under the load-ed and non-loaded conditions. The load effects upon the range of operating inter-vals are discussed. The problems such as regulation of the transfer coefficient and"zero", extension and reduction of range, angle and voltage displacement of outputcharacteristic are also discussed. Therefore, output characteristic curve can be moved,extended and reduced along α-axis or U-axis on Decker coordinate plane. Consequ-ently, the transducer can be made to satisfy the design specifications presented bythe users. Based on theoretical and experimental study, principles of choosing circuitcomponents are presented according to the design formulas derived and the designdemands, and a new method of determining parameters of components by means ofthe calculation and the experiment is found. In the end, a design example of angletransducer circuit is given.

本文介绍一种使用自整角机配以适当的电路元件实现将角位移转变为直流电压信号的电路。该电路可以消除用自整角机输出交流电压时的剩余电压,从而提高了测量精度。文中将电路的输出特性(伏一角特性)划分为两种工作区,讨论了负载对各工作区宽度的影响,提出自整角机及电路元件参数选择和计算的原则和方法。最后给出该变送器的设计举例。

Operating principle, emissive circuit, receiving circuit, controlling circuit and time-base circuit of QH-87 Sound-Speed Measurer made in our own laboratary were introduced breifly in this paper.

本文简要介绍自制QH—87型聚合物声速测定仪的工作原理,发射电路、接收电路、控制电路及时基信号电路的设计。

 
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