电路

This paper also introduces the design of hardware in detailed. And introduces MCU model, the choice of detector, the choice of the wireless receiving- dispatching module , the repeater, circuit control remotely, electric circuit of the watch-dog, the design of acousto-optics alarm circuit, and gives some program design methods.

本文对各部分硬件设计作了详细的阐述，并介绍了核心芯片的选型，探测器的选择、无线收发模块的选择、中继器、遥控电路、看门狗电路、声光报警电路设计，给出了主要程序的设计方法。

Under power supply voltages 5, 3.3, 1.8 V, using 0.24 μm process to carry out PSPICE simulation, the proposed XOR gate can save power consumption up to 36.5%, while power-delay-product up to 68.0% as compared with the published designs, which shows that the proposed design has advantages in power and delay.

在5、3.3、1.8 V电源下，经PSPICE在0.24μm工艺下模拟，与已发表的异或门电路设计相比，新提出的电路功耗和功耗延迟积的改进分别高达36.5%和68.0%，说明本文设计的异或门电路在功耗和延迟方面具有优势。

Based on the propagation algorithm of signal probability,the decomposition algorithm of a multi-input XOR/AND gate,and the multiple segment algorithm of polarity conversion,this paper successfully applies the whole annealing genetic algorithm to find the best polarity of an RM circuit.

徐建 宁波大学电路与系统研究所，宁波 315211针对n变量逻辑函数在不同极性下所对应REED-MULLER 电路功耗和面积不同的特点，对信号几率传递算法、多输入XOR/AND门的低功耗分解算法和多成份极性转换算法进行了深入研究，成功地将整体退火遗传算法(whole annealing genetic algorithm，WAGA)应用于RM电路最佳极性的搜索。

At present, OTA circuit is designed the best circuit with minimum error generally acknowledgedly, and possessed three following advantages at the same time: using single-ended-input OTAs (overcoming the feed-through effect due to the use of differential-input OTAs), using grouded capacitors (absorbing the shunt parasitic capacitance), and using the minimum components and all the parasitic capacitances have the same places as those of all the given capacitors in the realized circuits.

目前为止，OTA电路是被公认设计最佳且误差最小的电路，且同时具备了以下三项优点：(1)使用单端输入的OTA(可免除寄生电容的Feed-through效应)，(2)使用接地电容，(3)使用最少的主动元件，且所有外加电容位置恰好与所有寄生电容的位置相同，吸收了寄生电容，并减少寄生效应对整体电路的影响。

Afterwards, we put forward a system solution for speed-control of blushless DC motor in this paper. Its hardware is based on SST89E554RC, and it drives the motor through a PWM circuit which is high-performance and low-cost.

本文设计了无刷直流电机的调速系统的整体方案，设计制作了以SST89E554RC为核心的硬件控制电路，该电路通过一个高性能、低成本的PWM脉冲形成电路，对电机进行驱动控制。

Comparing with traditional Boost PFC circuit,bridgeless Boost PFC circuit can improve efficiency and has advantage in medium and high power applications.

与传统Boost PFC电路相比，无桥Boost PFC电路能提高整机效率，特别适用于中大功率电路中。

Using two kinds of representative bridgeless PFC topologies as main circuit and IR1150 as control chip, two bridgeless PFC prototypes have been designed and the EMI of the two circuits has been tested.

采用两种比较有代表性的无桥拓扑作为主电路结构，控制电路采用单周控制芯片IR1150，设计了试验样机，并对两种PFC电路的EMI进行了测试分析。

Based on introduction of the development for camera module used in mobile, the framework of SMIA was described, including its functionality, structure and electrical interface, emphatically on the compact camera port2.0 (CCP2.0) and the cameral control interface.Major circuit was implemented in design, using 0.18 um technology of smic. The transmitter can work at 650 MHz steadily,and digital circuit contains about 3 k gates.

在介绍了手机照相模块发展的基础上，描述了标准移动图像处理体系结构的总体架构，包括照相模块的功能、结构设计、电气特性等，尤其对密集型照相端口（CCP2.0）和照相控制端口作了详细的阐述，并实现了具体的电路设计，采用smic 0.18 um工艺，数据传输电路可以稳定地工作在650 MHz，数字电路部分约为3 k门。

The effects of matching circuit on resonant frequency and vibrational charac- teristics of piezoelectric ultrasonic transducers were studied.

研究了匹配电路对压电超声换能器共振频率及其振动特性的影响；分析了由匹配电路和换能器组成的能量传输系统的有效机电耦合系数与匹配电路参数之间的关系。

This article first introduced designs the high efficiency cocurrent voltage-stabilized source's composition structure and the control principle, and on the power source main circuit, the control circuit, the protection circuit as well as the control system software's design did have analyzed in detail.

本文首先介绍了所设计的大功率直流稳压电源的组成结构和控制原理，并就电源主电路、控制电路、保护电路以及控制系统软件的设计做了详细地分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。