时基电路

555单片集成时基电路在船舶中的若干应用

Some Applications of 555 Single Piece integrated Timer in Ships

综上所述，本设计采用频率在一定范围内可调的以时基电路NE555为核心的RC振荡电路。

In sum , this design adopts RC oscillation circuit centered by Time-base circuit NE555 , which is adjustable to a certain extent .

采用2片555时基电路，其中一片控制频率，另一片控制占空比.产生频率为30Hz～10MHz连续可调；

Using two pieces of 555 time base circuits , one control frequency another control width , produce adjustable series frequency in 30 Hz ~ 10 MHz .

本文介绍了一种只用一块NE555时基电路和少量分立元件，就能制作一个具有过压、欠压和断电延迟三种保护功能的全自动电冰箱保护器。

The author introduces the process of using NE555circuit and a few fittings to make a tutamen of automatic refrigerator with functions of over-pressure , deficient pressure , and delay .

555时基电路在毛布跑偏中的应用

Application of 555 time base circuit in felt error checking device

时基电路在医用电子治疗仪器中的应用一例

An Example of Time-Base Circuit Applied to a Medical Electronic Instrument

一种由555时基电路构成的多谐振荡电路

A Kind of Multivibrator with 555 Time - Base Circuit

555时基电路应用于台站观测实例

Several applying examples of 555 time - base circuit device

555时基电路在定时电路中的应用基于555时基电路的测温系统设计

Design of Temperature Measurement System Based on 555 Timing Circuit

时基电路555在脉冲电机上的应用

Application of N. E 555 to An Impulse Motor

机械定尺飞锯机中的555时基电路

555 time-base electrical circuit employed by flying sawing machine with mechanical length-measuring function

硬件设计方面，本文主要讨论了信号调理电路、A/D变换电路、时基电路及触发电路的设计等。

Signal condition circuit , A / D circuit , time-base circuit and trigger circuit are discussed .

内容包括时基电路、预置延时电路、输入接口、总清及加电复位等。

It includes the time-base circuit , time set and delay circuit , input interface , clear and reset circuit etc.

本文提出用集成运算放大器和时基电路产生大范围控制晶闸管导通角的触发信号，具有可靠性高，功耗小，调控范围大，调试容易等特点。

Trigger for controling turn-on angle of thyristor in large range is suggested by operational amplifier and time base circiut in the paper .

本文研究用5G7556-CMOS双时基电路产生对称方波的条件和实验调整方法。

This paper studies the conditions for generating symmetrical square wave by using5G7556-CMOS timer integrated circuit as well as their experimental and adjustment methods .

介绍一种晶闸管调功器，用集成运算放大器组成的变周期调制电路和由时基电路组成的晶闸管触发器。

A sort of thyristor power adjustor is introduced including the modulation circuit with varying cycle and thyristor triggers which are consisted of integrated operational amplifier and time-base circuit respectively .

系统内部采用了时基电路定时的方法储存年检信息，便于交通管理部门以及汽车运营单位对汽车进行管理和监督。

Systematic inside have adopted the method of time base with timing circuit storing annual examine information , then the traffic management department and the automobile operation unit can manage or supervise automobile easily .

数字存储示波器的核心是时基电路，超前/滞后控制电路是时基电路的核心。其设计是数字存储示波器的关键。

The core of digitizing storage oscilloscope is the time-based circuit , while the lead and lag control circuit is the core of the time-based circuit , the design of which is the crux of the digitizing storage oscilloscope .

该系统利用红外光敏对管作为传感器，采用中规模集成电压比较器、555时基电路及40110计数译码驱动电路，实现了对精密播种机工况的自动监控和播量累加数字显示。

It is composed of medium scale integral voltage comparators , 555 time base circuits , 40110 counting decoding drive circuits and infrared photodiode sensors . It can automatically monitor the working process of the precision drill and display seed rate in digit .

利用时基电路555的特性，设计保护电路，在塔钟自动控制系统失良的情况下，对脉冲电机实施保护。

Taking advantage of the properties of N. E 555 , this article presents a design of protection of circuit , which performs a function of protection to the impulse motor in a tower clock in case the automatic control system of it is out of order .

视频时基校正电路的设计与实现

Design and relization of time-base correcting circuit for video

基于所介绍的基本速率用户网络接口，设计了一种用于基本速率用户网络接口的时基发生电路，分析了整个时基模块，包括所产生时基的优、缺点。

The time base module is detailed and the advantage and disadvantage of the produced time base are analyzed .

介绍了一种以555时基集成电路和单片机构成的全数字化温度测量电路及其工作原理。

A kind of totally digitized temperature measuring circuit consisted of 555 time base integrated circuit and MCU and its operation principle are introduced .

其技术特征是：变频逆变电路由时基集成电路和三极管连接而成；

The technical characteristics of the device is : the frequency conversion invert circuit consists of the connection of a time base integrated circuit and a triode ;

本实用新型由时基信号电路、数字钟电路，时间显示屏，半导体存贮器，编程电路及执行电路组成。

The utility model is composed of a time signal circuit , a digital clock circuit , a time display screen , a semiconductor memory , a programming circuit and an executing circuit .

在超声波接收电路中设有信号触发锁定电路和时基控制电路。实现以各探头中最早收到的回波信号为本检测单元的有效信号，有效提高信噪比和检测精度；

Arranged signal activating lock circuit and time-base control circuit in the sound wave receiving circuit to take the initial signal of back wave as the valid one in the cycle , thus to improve the ratio of signal vs. noise and detective precision .

介绍一种适用于物理实验教学的新型弦振动装置，描述了其基本结构及工作原理，并给出时基信号控制电路部分的PSpice仿真波形。

The paper introduces a kind of new physics experimental teaching equipment on string vibration , mainly describes its basic structure and work principle , then gives the simulation wave form of the time-control electric circuit based on PSpice software .

在分析时基误差产生原理的基础上，利用帧存和PAL（逐行倒相）编解码芯片及CPU和FPGA（现场可编程门阵列）控制逻辑设计实现了视频时基校正电路。

Based on the principle of the time base error producing , using frame memory , PAL coded chip , CPU , FPGA control logic , the video time base correct circuit is realized .