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王春华 《固体电子学研究与进展》2005,25(4):536-539
为了实现结构简单、便于集成的三输入单输出电流模式滤波器,提出了三输入单输出电流模式滤波器的信号流图。用CCⅡ(第二代电流传输器)及多端输出的电流镜实现了该信号流图,得到一个由CCⅡ及电流镜共同构成的电流模式滤波器。该滤波器由2个CCⅡ、1个三端输出的电流镜及4个RC元件构成,能方便地实现5种滤波器输出。该滤波器可用于通信、电子测量与仪器仪表中的信号处理。硬件实验结果表明提出的电路是正确的。 相似文献
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王春华 《固体电子学研究与进展》2005,(4)
为了实现结构简单、便于集成的三输入单输出电流模式滤波器,提出了三输入单输出电流模式滤波器的信号流图。用CC(第二代电流传输器)及多端输出的电流镜实现了该信号流图,得到一个由CC及电流镜共同构成的电流模式滤波器。该滤波器由2个CC、1个三端输出的电流镜及4个RC元件构成,能方便地实现5种滤波器输出。该滤波器可用于通信、电子测量与仪器仪表中的信号处理。硬件实验结果表明提出的电路是正确的。 相似文献
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新型电流控制电流传输器 总被引:1,自引:0,他引:1
提出了一种新型电流控制电流传输器(CCCII)电路。该CCCII电路由跨导线性环电路和双极性Wilson电流镜构成。为实现该新型CCCII电路,还提出了双端输出的双极型Wilson电流镜。该CCCII电路具有输出阻抗高、电压及电流传输精度高、易于实现、便于集成等优点。文中分析了电路的工作原理,给出了实验结果,验证了电路的正确性。 相似文献
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提出了一种新型的电流控制第二代电流传输器电路。该电路由6个复合营改进型电流镜和1个跨导线性环组成.该电路的电流传输精度远高于基于基本电流镜和级联电流镜实现的电流控制第二代电流传输器(CCCII)的电流传输精度。对电路原理进行了分析,并进行了硬件实验,实验结果表明频率在0-1.3MHz范围内能很好地满足CCCII的电流和电压特性关系,从而证明提出的电路是正确的。 相似文献
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一种新型高输出阻抗,高电流匹配精度电流镜的设计 总被引:1,自引:0,他引:1
电流镜是模拟电路设计的基础单元之一,在高性能模拟电路设计中,电流镜的电流匹配精度和输出阻抗是决定电路性能的最重要的参数之一.设计一种新型高输出阻抗、高电流匹配精度电流镜,采用了一种新颖的五级负反馈增益方法来增加电流镜的输出阻抗,同时还通过改进DMCM电路结构提高了电流镜的电流匹配精度,使得设计的电流镜在任何Iin下都保证有较高的电流匹配精度,而且这种新型电流镜也有近似于传统两级共源共栅电流镜的摆幅.采用TSMC 0.18 μm,1.8/3.3CMOS标准工艺,在3.3 V电源下,输出阻抗能达到18 GΩ以上,并且电流匹配精度接近于0.01%,输出电压摆幅为1.28~3.3V 相似文献
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文章将讨论一种新的互补逻辑结构—互补电流镜逻辑(Complementary current—mirror logic)。它与其它逻辑器件的区别主要是靠输入输出门之间的电流流向来确定逻辑,是一种电流型逻辑器件。本文通过PSPICE模拟来研究互补电流镜的原理、开关及连接特性。从研究结果得出互补电流镜在简单门电路下速度可与ECL电路相近,而功耗接近CMOS电路,因而互补电流镜是一种前景光明的新型逻辑结构。 相似文献
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文章对N^+ PPN结构的MW/LW双色红外焦平面信号电流同步积分的工作模式,提出了一种双色读出电路输入级的新结构,即在栅调制注入输入级的基础上加以设计改进,采用电流镜对一个独立波段(LW)的信号电流进行两路精确复制,分别用于此波段的信号电流积分、与混合波段信号电流的相减,解决了探测器输出端混合波段信号电流的分离问题,达到了两个波段信号电流同步独立积分的目的。本文就双色电路的输入级结构和工作原理进行了详细的阐述,电路模拟验证的结果表明该电路适用于信号电流大于10nA的双色器件(MW/LW,MW1/MW2,LW1/LW2双色器件),有较高的精确度(误差〈2%)和良好的性能。 相似文献
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最少元件的多输入多输出MOCCII电流模式滤波器 总被引:19,自引:8,他引:11
本文提出了两种基于MOCCⅡ(多端输出的第二代电流传输器)的多输入多输出的电流模式滤波器。两种电路均由2个MOCCⅡ及4个接地RC元件构成。每一种电路除了实现出单输出的低通、带通、高通、带组、全通电流模式滤波器外,还能实现三种不同类型的具有同时多输出的电流模式滤波器,提出的电路具有很低的无源灵敏度;同时应用基本电流镜技术实现出结构简单的高精度CMOS MOCCⅡ,并对MOCCⅡ及提出的滤流器电路进行了PSICE仿真。 相似文献
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Jiun‐Wei Horng Chun‐Li Hou Chun‐Ming Chang Hung‐Pin Chou Chun‐Ta Lin Yao‐Hsin Wen 《ETRI Journal》2006,28(4):486-494
Two current‐mode and/or voltage‐mode quadrature oscillator circuits each using one fully‐differential second‐generation current conveyor (FDCCII), two grounded capacitors, and two (or three) grounded resistors are presented. In the proposed circuits, the current‐mode quadrature signals have the advantage of high‐output impedance. The oscillation conditions and oscillation frequencies are orthogonally (or independently) controllable. The current‐mode and voltage‐mode quadrature signals can be simultaneously obtained from the second proposed circuit. The use of only grounded capacitors and resistors makes the proposed circuits ideal for integrated circuit implementation. Simulation results are also included. 相似文献
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数字控制保护电路是健康管理芯片的重要组成部分。健康管理芯片对发射组件进行保护,具有电流检测、温度检测、过流保护、过温保护、脉宽占空比保护、寿命记录等功能。数字控制电路进行参数配置与存储,用逻辑运算处理模数转换后的信号,产生控制信号给模拟电路并上报状态。文中采用硬件描述语言设计并实现了一种串行外设接口,具有电可擦除只读存储器读写、电流和温度比较和保护、占空比检测和保护、寿命计数等功能,并采用XFAB 0. 35 um 工艺完成了芯片流片。测试结果表明:实现了组件健康管理的数字控制与保护功能,能够满足组件高可靠性、小型化、低成本的需求。 相似文献
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考虑到温度和工艺参数浮动的影响,对休眠双阈值footed多米诺电路的漏电流特性进行了系统的量化研究和比较,得到了不同温度下的最佳休眠状态.基于65和45nm BSIM4模型的HSPICE仿真表明:与业已提出的CHIL(时钟为高,输入均为低电平)状态和CHIH(时钟和输入均为高电平)状态相比,本文提出的CLIL(时钟和输入均为低电平)状态更有利于减小低温下电路的漏电流和高温下的多扇入电路的漏电流.而且,分析了工艺参数的浮动对双阈值footed多米诺电路的漏电流特性的影响,并给出了温度和工艺参数浮动下,双阈值footed多米诺电路漏电流最小的休眠状态. 相似文献
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考虑到温度和工艺参数浮动的影响,对休眠双阈值footed多米诺电路的漏电流特性进行了系统的量化研究和比较,得到了不同温度下的最佳休眠状态.基于65和45nm BSIM4模型的HSPICE仿真表明:与业已提出的CHIL(时钟为高,输入均为低电平)状态和CHIH(时钟和输入均为高电平)状态相比,本文提出的CLIL(时钟和输入均为低电平)状态更有利于减小低温下电路的漏电流和高温下的多扇人电路的漏电流.而且,分析了工艺参数的浮动对双阈值footed多米诺电路的漏电流特性的影响,并给出了温度和工艺参数浮动下,双阈值footed多米诺电路漏电流最小的休眠状态. 相似文献
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J. Machado da Silva J. Silva Matos Ian M. Bell Gaynor E. Taylor 《Journal of Electronic Testing》1996,9(1-2):75-88
Power supply current monitoring is a promising technique for the development of new test methodologies for analog and mixed-signal circuits. The advantages of efficiency and reduced test time have already been recognized in the digital domain. This paper shows that improved test efficiency and detection confidence are obtained when both output voltage and power supply current are observed. Results found from the simulation of two circuits are presented comparing fault detection ratios and the amplitude of faulty response deviations when observing each one of these signals.Cross-correlation between output voltage and power supply current is presented as a means to perform a single mixed current/voltage testing operation, providing at the same time increased efficiency. It allows also for simplifications on test circuitry and processing, as reductions on the sampling rates and amplitude resolutions used to acquire the signals provide the same fault coverage levels obtained using higher fidelity measurements. 相似文献
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The inputs and clock signals combination sleep state dependent leakage current characteristics is analyzed and the optimal sleep state is examined in sub-65 nm dual Vt footed domino circuits. Simulations based on 65 and 45 nm BSIM4 models show that the conventional CHIL state (the clock signal is high and inputs are all low) is ineffective for lowering the leakage current and the conventional CHIH state (the clock signal and inputs are all high) is only effective to suppress the leakage current at high temperature other than the high fan-in domino circuits. For the high fan-in footed domino circuits at high temperature and most of footed domino circuits at room temperature, the CLIL (the clock signal and inputs are all low) state is preferable to reduce the leakage current. Further, the influence of the process variations on the leakage current characteristics of the dual Vt footed domino circuits is also evaluated. It is observed that the average leakage current is universally higher than the date reported in the normal corner and the CLIL state is the optimum choice considering the leakage current reduction and the robustness to the process variations simultaneously. 相似文献
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瞬态电流(IDDT)测试经常被看作是静态电流(IDDQ)测试的替代或补充,特别在深亚微米技术中,受到越来越多的关注。根据一种基于电荷的瞬态电流片外电流传感器电路,并在其基础上进行改进并对两阶多米诺加法器电路进行仿真实验,实验结果表明,改进后的电路能有效读取集成电路中的瞬态电流,从而实现瞬态电流的测试。 相似文献
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In this paper, two novel application circuits utilizing the differential voltage current conveyor (DVCC) are introduced and implemented. To the best knowledge of authors, this is the first reported monostable multivibrators employing DVCC device. Each presented circuit is constructed by single DVCC as the basic active building block together with a few passive components. Both of them can be operated via a positive-edge triggering signal to generate a pulse waveform with an adjustable width. The first one is a general monostable circuit. The second design is an improved construction, which shortens the recovery time for applying the consecutive triggering signals. The circuit operations are first described and then the non-ideal issues and design considerations of the proposed circuits are discussed. To demonstrate their feasibility, the presented circuits are simulated using circuit simulation program Is-Spice. Available commercial ICs and discrete components are used to implement the prototype circuits. Simulation and experimental results agree well with the theoretical analysis. 相似文献