查询词典 by-product circuit

The voltage wave of open circuit is 1.2/50 μs and the current wave of short circuit is 8/20 μs , which are generated by the combination wave generator through calculating and simulating circuit parameters.

通过计算回路参数及仿真，此组合波发生器能够产生1.2/50μs 的开路电压波和8/20 μs 的短路电流波。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

The invention relates to an amplifier circuit containing a high-frequency transistor (1) and having a circuit (2) for adjusting the operating point, which provides a base current for the high-frequency transistor (1) according to the voltage released at a resistor (3) which is connected in the collector ring of the high-frequency transistor (1). The circuit (2) has a differentiating unit (20), fed by the supply voltage, which compares the voltage released at the resistor (3) with a reference voltage.

带有高频晶体管(1)的放大器电路具有一个用于工作点调整的电路(2)，其依赖于在连接在高频晶体管(1)的集电极电路中的电阻(3)上下降的电压为高频晶体管(1)提供基极电流，电路(2)具有一个由供电电压馈电的差分节(20)，其把在电阻(3)上下降的电压与基准电压比较。

For the design of the power circuit frame, the in-series resistance plan is applied in commutate circuit to restrain the voltage pulse caused by rising arc; while the parallel connection switch is adopted in inverted circuit to guarantee the reliability of the power at work.

在主电路拓扑设计中，整流电路采用了串联降压电阻的方法来抑制起弧时的电压脉冲；逆变电路采用了双并联开关组方案，以进一步提高电源工作的可靠性。

Experimental design of the circuit - the transistor triggered by a single node of the single-phase half-controlled bridge rectifier circuit, through the step-down, rectifier, output waveform, circuit design including DC motors, Thyristor, single crystal, such as rectifier circuits.

实验设计电路-由单结晶体管触发的单相半控桥式整流电路，通过降压、整流、输出波形，电路设计包括直流电动机，晶闸管，单结晶，整流电路等。

By analyzing the pulse transformer and ideal drive electric current wave, we try to improve the rate of changing-over, discuss the damped oscillation, point out existing circuit design error, and working a new circuit design which can reduce the common circuit circulation and switch loss.

通过对脉冲变压器及理想激励电流波形的分析，如何提高转换速率，阻尼振荡予以讨论，指出目前存在的设计误区，做出减少共态导通与开关损耗的新设计。

Every designable circuit parameter and statistical variation are swept one by one with circuit simulator in order to determine the ranges of these parameters variation in which the circuit has based performances.

本方法首先对电路的关键参数进行扫描，确定满足电路基本性能时的参数变化范围。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

由计算机分别连接并控制I/O端口和A/D转换器，I/O端口分别连接并控制X、Y轴步进电机驱动电路和半导体激光器，X、Y轴步进电机驱动电路分别连接并控制X、Y轴步进电机，从而控制二维位移平台，半导体激光器的光束经过设有直径0.1mm小孔的聚焦镜筒形成＜0.1mm直径的光斑，光斑照射于设在XY二维位移平台上的探测器表面使其产生响应的电信号，探测器表面经放大器连接A/D转换器，电信号经放大器放大后，由A/D转换器转换为数据信号送计算机处理。

By the author of the main circuit design, control circuit design,MCU trigger circuit design, and supporting a complete circuitdesign to meet the requirements of the elevator shaft DC drivecontrol system.

作者通过对主电路的设计，控制电路的设计，单片机触发电路的设计以及辅助电路的设计完成了符合要求的矿井直流提升机传动控制系统。

The module has function of short-circuit,when the module output short-circuit,output by limited current,exclude the factor of short-circuit,the module return to normal output automatically.

模块具有短路保护功能。当模块输出短路时，限流输出。短路因素排除后，模块自动恢复正常输出。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。