signal control circuit

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.

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；

The wireless reception circuit which placed elsewhere receive warning signal and single chip microprocessor control alarm.

置于他处的无线接收电路接收报警信号,由单片机控制响应报警.

The whole test system includes AC source, signal acquisition and regulate circuit, LED electronic load, ARM control circuit, LCD interface circuit, switching value circuit and communication interface circuit.

整个测试系统包括交流源电路、信号采集与调理电路、LED电子负载电路、ARM处理器控制电路、液晶显示接口电路、开关量接口电路和通信接口电路。

The touch-sensitive panel is specially provided with an impedance circuit and a control chipset for signal processing, which are electrically connected with the touch-sensitive panel.

其中，上述一触控板上特别设计有一阻抗电路，及一处理信号的控制芯片，并与该触控板有电性连接；

It consists of a Boxcar integrator, a latch, a pulse-width modulatior and a signal control circuit.

它由Boxcar积分器，锁存器，脉冲宽度调制器和控制信号电路组成。

Control circuit is taking pulse wide modulation circuit as core. By comparison of given signal and feedback signal of overvoltage, get the width-adjustable pulse signal for regulating output of welding power source so as to realize the colsed-loop control to arc-welding inverter.

控制电路以脉宽调制电路为核心，通过电压给定信号和反馈信号的比较，获得宽度可调的脉冲信号，调节焊接电源的输出，并实现对弧焊逆变器的闭环控制。

The discrete control signal which it is output by the computer is transformed to the continuous control signal through output signal circuit and D/ A transformation.

将飞控计算机输出的离散控制信号经输出信号电路和D／A电路转换为滑翔弹的连续控制信号。

The paper presents a circuit structure and control methods of controller of STATCOM based on SA4828 PWM signal generator.

介绍了一种采用三相PWM脉冲发生器SA4828组成的STATCOM控制器的电路结构和相应的控制策略。

Infrared absorption methane concentration alarming device is comprised of microcontroller systems, light modulation module, signal conditioning module, digital display module, sound and light alarm module, remote control receiving module, standard output module interface circuit.

该红外吸收式的甲烷浓度报警器由单片机系统、光源调制模块、信号调理模块、数码显示模块、声光报警模块、遥控接收模块、标准频率输出模块等电路组成。

The main control system includes the synchronous signal generating circuit 、 the testing circuit of thyristor cut-off voltage and the trigger circuit of the thyristors etc.

论述了主要硬件电路的设计方案，其中包括晶闸管两端电压检测、三相电源同步信号检测等。