模转换

Figure 5 is the schematic diagram of a d/a converter.

图5是数/模转换器的原理图

Amplifiers scale the incoming signal up or down to the range of the analog-to-digital converter being used.

放大器，用于按照数模转换器的要求，比例增高或者降低输入信号的幅度。

ABSTRACT: With the development of the times, digital electronic technology has been popular in all of our lives, work, research, and all fields. This paper introduces a NC DC power supply, the power consists of analogue power supply, display circuit, control circuit, digital-to-analog converter and circuit amplifier.

随着时代的发展，数字电子技术已经普及到我们生活，工作，科研，各个领域，本文将介绍一种数控稳压电源，本电源由模拟电源、显示电路、控制电路、数模转换电路、放大电路五部分组成。

ABSTRACT: With the development of the times, digital electronictechnology has been popular in all of our lives, work, research,and all fields. This paper introduces a NC DC power supply, thepower consists of analogue power supply, display circuit, controlcircuit, digital-to-analog converter and circuit amplifier.

随着时代的发展，数字电子技术已经普及到我们生活，工作，科研，各个领域，本文将介绍一种数控稳压电源，本电源由模拟电源、显示电路、控制电路、数模转换电路、放大电路五部分组成。

Stepper motor is a pulse will be transferred into angular displacement of the Electrical and Mechanical-DAC devices.

步进电机是一个将脉冲信号转移成角位移的机电式数模转换器装置。

Stepper motor is the working principle of electrical pulse signal into angular displacement of a Electromechanical Digital to Analog.

步进电机的工作原理是将电脉冲信号转换成角位移的一种机电式数模转换器。

The tone generator task arithmetically forms tone waveform data by use of the tone controlling parameters and passes the tone waveform data to a CODEC circuit functioning as an A/D converter.

该乐音发生器任务利用乐音控制参数用算术方法形成乐音波形数据并把该乐音波形数据送给数/模转换器作用的CODEC电路。

Based on the analysis of micro -bolometer resistance -temperature characteristics, a new readout circuit was proposed. It allowed micro -bolometer operate without a temperature stabilizer over a wide range of ambient temperature. And it need a Flash memory to store the correcting factors of different temperatures and a temperature sensor to detect the ambient temperature of the micro -bolometer. By utilizing the factors in the Flash memory, Digital Analog Converter controls the micro -bolometer bias current to compensate the fluctuation of ambient temperature.

通过对微测辐射热计的电阻温度特性的分析，设计了一种新型无需温度稳定装置的读出电路，该电路的Flash存储器存储不同温度下的校正系数，温度传感器实时检测探测器的环境温度，从Flash中取出相应的温度校正系数送入数模转换器，通过DAC的电压输出来控制探测器偏流以进行环境温度补偿。

The transformation between digital signal and DC voltage was made with D/A converser and high voltage amplifier; varactor s were used for tuning components; the bandpass filter was a combline microstrip line one, its dimension was presented.

采用数模转换器和高压运放实现数字信号与直流电压的转换；以变容二极管作为调谐元件；带通滤波器采用梳状微带线结构，并给出了结构参数。

These A-D converters are available in addition to our existing 100MHz digitiser and DSP acquisitionunits.

在我们现有的100MHz数据转换器和DSP采集单元基础上可另加这些数模转换器。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。