frequency control circuit的例句大全

The source consists of a microwave phase-locked loop and a new type of automatic frequency control circuit. Chief factors to influence spectrum purity of microwave output signal and phase noise are analyzed.

该稳定本振源由一个微波锁相环路（PLL）和一种新型自动频率控制电路（AFC）组成，文中分析了影响微波输出信号频谱纯度和相位噪声的主要因素。

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coaxial ring-stick electrode system was adopted in the thrust unit and control system by which thrust velocity and water supply could be dominated was advanced. the control system was made up of ac phase voltage regulating and frequency control circuit.

水射流等离子弧推进单元采用同轴式环-棒电极系统；控制系统利用自行研制的交流相位调压电路以及频率控制电路，实现了对等离子弧推进模型的速度及供水的控制。

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The article introduces a kind of dual threshold frequency control circuit for digital control device.

文章介绍了一种数控装置的双门槛频率控制电路。

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At same time this program-controlled intelligent function generator is on basis of direct digital synthesize technology ( DDS), and this technology is a breakthrough in the domain of frequency synthesize technology with the development of computer, digital integration circuit and micro-electronically technology.

同时该程控智能函数发生器以直接数字频率合成技术（DDS）为基础的，此技术是随着计算机、数字集成电路和微电子技术的发展，在频率合成技术领域的新的突破。

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In the compensation current tracking control, the system adopts hysteresis control method of timing comparison, which can make the output current of main circuit track the directive current and limit the maximum switching frequency of the main circuit switching device.

对于补偿电流的跟踪控制，采用定时比较的滞环控制法，使得主电路的输出电流能够跟踪指令电流的变化，并且限制了主电路开关器件的最高开关频率。

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The paper mainly put forward a new control method of stepping motor which character-, ized by equal-stepped fine division, and then design a constant frequency PWM driver circuit.

提出一种等步距角的细分控制方法，并据此设计了恒频脉宽调制细分电路。

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Based on many experiments, by applying the theories of electric circuit and plasma chemistry, a double frequency reaction control system for the organic exhaust gas decomposition by plasma has been presented in this paper, which has distinct effects and well-designed circuit structures.

本文基于大量实验，将电路原理与等离子体化学相结合，提供了一种效果明显、电路设计合理的等离子体降解有机废气的倍频式反应控制系统。

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This article in view of ordinary frequency meter existence reading difficult, measuring accuracy not higher shortcoming, proposed one usability strong the high accuracy numeral frequency meter control circuit system realization method which controls with the monolithic integrated circuit, has the broad application prospect.

针对普通频率计存在读数难、测量精度不高等缺点，提出了一种实用性较强的用单片机控制的高精度数字频率计控制电路系统的实现方法，具有广阔的应用前景。

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The frequency control device of the blower motor for the Soviet BJI85 electric locomotive is introduced in regard of its energy saving efficiency and operation principle of the circuit.

本文介绍了苏联（？）85电力机车风机电动机变频调速装置的节能效果及其电路的工作原理。

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Microprocessor Control Active Band Filter& Impletation. of a Digital Low Band Filter Mixed with Analogue Circuit Central Programmable Frequency

微处理器控制有源带通滤波器&一种数字与模拟电路相混合的低频带通中心频率可编程滤波器的实现

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Closed circuit control for expanding governing limits of universal frequency converter

通用变频器扩大调速范围的闭环控制

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the control-circuit has the functions of oscillation frequency set, current leading edge blanking, over-current protection, temperature protection, and soft-start. at last this paper presents an application in 220v/ 20a switched power supply.

主要介绍了UC3825A/B的管脚功能，设计了控制电路，可实现精确的振荡频率设定、尖峰电流消隐以及过电流、热保护和软启动等功能，并给出了在220V/20A开关电源中应用方法。

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In order to make circuit varies with frequency, we adopt PI adjuster to gain changeless electromagnetic moment in control circuit.

为了保证当频率变换时，电流能够相应地变化，在控制电路中，采用PI调节器以获得恒定的电磁力矩。

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A shell body is arranged outside the frequency converter control circuit and is provided with a wiring terminal, a control switch, an indication light and a displaying screen.

所述的变频器控制电路外部设置有壳体，在壳体上设置有接线端子、控制开关、指示灯和显示屏。

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According to the topology structure of main circuit, design the control circuit. It includes design of locking signal circuit, lacking phase detection circuit, locking phase and frequency multiplication circuit, and PWM pulse-width modulation circuit.

根据主电路拓扑结构，设计了其控制电路，包括同步信号电路、缺相检测电路、锁相倍频电路和PWM脉宽调制电路的设计。

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In this paper the linear induction motor model is given on the basis of equivalent circuit compensating the end effect. In addition, the concept and the method of constant slip frequency control of linear induction motor are analysed.

根据把端部效应考虑在内的等值电路，建立直线感应电机的数学模型，分析直线感应电机的恒转差频率控制的思想和实现方法，并对控制系统进行仿真。

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The main circuit is composed of a non-controlled rectifier and a single-phase full-bridge IGBT inverter circuit to regulate the frequency and power.

主电路采用单相不控整流IGBT全桥逆变电路，调节频率调节功率。

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Three-phase alternating frequency modulation control signal produced by 8051 CPU is magnified to control the switch of the silicon controlled rectifier in inverse main bridge circuit, thereby constant pressure speed-adjusting is realized.

由8051CPU产生三相交流调频控制信号，经放大来控制逆变主桥路中可控硅晶闸管的通断，从而实现恒压调速。

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The design mentality is to control the output frequency of inverter by way of analog control circuit, so that the motor of artificial atmosphere is controlled.

设计思路是通过模拟控制电路来控制变频器的输出频率，并由变频器控制温湿空调电动机，以实现纺织厂的恒温恒湿环境。

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The analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit;

振荡器和控制电路中尖峰脉冲噪声抑制、两分频电路及死区时间设定；

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