电流放大

The pharos is controlled by reliable program. Working status data is collected in real time. A two-stage amplifier is used to sense the current signal. VHF transmitter-receiver is used as the means of communication, which is working at 233. 3MHZ. GPS data is collected to calculate the latitude and longitude valued of the pharos. Sleep mode is used to reduce the energy consumption. Auto alarm function and watch dog function are integrated to maintain its stability and reliability.

在用高性能8位处理器68HC908SR12设计的新型遥控遥测航标灯中，充分利用了处理器的功能，实现了对灯器的程序化控制，实时进行数据采集，采用了两级放大器对电流信号进行放大，采用VHF电台进行远程通信，对GPS定位数据进行采集和处理，为了降低功耗实现了定时和睡眠控制，为保证工作稳定性和可靠性，启动了故障处理、自动报警功能，以及看门狗功能。

Playing the recording: The magnetic head changes the magnetic fields into various levels of electric currents when the tape passes through it.

放音：磁带通过磁头时，磁头将磁带上记录的磁场转换成强弱不同的电流，经放大器放大后传到扬声器。

This apparatus adopted the MCS-51 singlechip as the CPU, and the whole system was composed of the determined equipment, the basic system of the singlechip, photocurrent signal amplifier, AID switch, timer, LCD screen, expanded keyboard, expanded printer and RS232 serial communication.

该仪器采用MCS-51系列的单片机AT89C51作为CPU，系统由检测装置部分，单片机基本系统，光电流信号放大，A/D转换，时钟，液晶显示，键盘扩展，打印机扩展以及RS232串口通信等部分组成。

The intelligence motor soft starters partial hardware electric circuit has designed mainly includes the electric current, the voltage examination module, the crystal thyratron triggers and the pulse width enlargement electric circuit module, the numeral keyboard entry and the liquid crystal display output module.

设计了智能型电机软起动器的部分硬件电路，主要包括有电流、电压检测模块、晶闸管的触发及脉宽放大电路模块、数字键盘输入及液晶显示输出模块。

Elect hardware, and design current to voltage translation circuit, voltage amplification circuit and acoustic-optic alarming circuit.

对硬件进行了选择，对电流/电压转换电路？电压放大电路和声光报警电路进行了具体设计？

Furthermore, the filter circuit of a low-impedance is carried in the power source of a voltage amplification part by the right-and-left independency, and the interference by the supply voltage variation by the load current at the time of the Oide power or a power supply variation on either side is reduced sharply.

此外，该滤波电路的低阻抗是在电源电压放大部分的权利和左独立性，并干扰电源电压变化的负载电流时的功率或Oide电源变化对任何一方是大幅度降低。

Subcircuit models are designed and simulated, which includes Bias Current Source, Voltage Reference, Error Amplifier, PWM Comparator, Driver Circuit, Protection Circuits for Over-temperature, Over-current. At last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement.

并对集成电路内的各个模块包括电流偏置电路、基准电压电路、误差放大电路、三角波振荡发生电路、PWM比较电路、驱动电路、过热保护电路和过流保护等进行了具体的设计和仿真，并对整体应用电路进行了仿真，结果均达到了预先设定的指标。

This system consists of a power unit, a four-electrode probe, a constant current drive unit, pre-amplifier and filter units, a signal generator unit, and data acquisition and control units, where the signal generator unit, and the data acquisition and control units are carried out utilizing DAQ card (PCI-6024E) which is mounded inside a PC.

本系统硬体方面主要包括下列几个部份：电源电路单元、四端电极单元、定电流驱动单元、前置放大与滤波单元、信号产生单元、和资料撷取与控制单元等。

Pupils dilate, arteries constrict, core temperature rises, heart races, blood pressure skyrockets, respiration becomes rapid and shallow, the brain fires bursts of electrical impulses from nowhere to nowhere, and secretions spit out of every gland, and the muscles tense and spasm like you're lifting three times your body weight.

瞳孔放大、动脉收缩、体温上升、心跳加快、血压想火箭一样上升、呼吸急促，大脑到处是因为电流脉冲产生的小火花，你所有的腺体都开始产生分泌物，然后向你在举三倍于你体重的东西时一样痉挛。性事粗暴的，丑陋的而且肮脏的。

The tester with DSP core could get excellent results by judging and adopting the different value of voltage and current, programmed amplifying and changing the frequency of sample.

系统以DSP为控制核心，可自动识别并适应不同的电压和电流等级，采用程控放大、变化采样频率以获得优化的阵列测试效果。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。