The invention concerns an apparatus comprising a housing having an exchangeable housing part, a keyboard and a support located in the housing. Switching means assigned to the keys of the keyboard are disposed on said support. When the keys are pressed, said switching means trigger a corresponding switch impulse.
本文描述了一种装置，它具有一个具有一个可更换壳部的外壳、一个键盘、一个位于该外壳中的且具有设置于其上的且属于键盘按键的开关器件的载板，其中这些开关器件在压下相应的按键时分别发出一个开关脉冲。
A predetermined electrical timing impulse is given to the light; the switch inside the mechanism selects a color; and the light changes color.
一个事先决定好的定时电脉冲输给电灯，机械装置内的开关选择颜色，而电灯改变颜色。
Combing the SCM hardware resources with the software process, the system design completes the control functions such as digital impulse spring, digital logical switch and digital feedback, achieves a reversible adjustable-speed regulating control of DC electromotor, and improves the precision and control capability of reversible adjustable-speed regulating system.
利用单片机的硬件资源与软件程序相结合，完成数字脉冲触发、数字逻辑切换及数字反馈等方面的控制功能，实现对直流电动机的可逆调速控制，提高可逆调速系统的精度和控制性能。
A foot-controlled current regulator can be affixed to our welding machines in the WSE series. During welding, the welder can freely regulate the soldering output current by using his foot, so that he can increase the current to speed up the heating during the start of welding and adding of welding wire. He also can reduce the current at the end of welding enabling the formation of welding stria. The application of foot-controlled switch can enhance the welding efficiency, reduce difficulties and ensure welding quality. Another option is the pulse welding operation by fixing an impulse foot control to the machine.
WSE系列焊机还可以配置脚踏电流调节装置，这样焊工可以在焊接时用脚来随心所欲的调节焊接输出电流，这样在焊接初始及添加焊丝时可以加大电流从而加速加热，而在焊接结束时减小电流而有利于焊纹的成形；脚踏开关的使用有助于提高焊接效率，降低焊接难度，保证焊接质量，而且还可以配置脉式脚踏开关进行脉冲焊接。
To solve the current impulse problem when the non-contactor switch on or cut off the capacitance, we particularly design the main circuit and the trigger circuit and use the open-off ratio control ways to eliminate impulse current.
其中针对无触点开关投切电容遇到的电流冲击问题设计了专门的主电路和触发电路，并结合通断率控制来消除冲击电流；
Study on Eliminating Low Frequency Ripple of Switch Power Supply with Impulse Control Technology
冲量控制技术消除开关电源低频纹波的研究
By analyzing examples of circuits, this paper is drawn a conclusion that switch elements will consume circuit energy when there is a step voltage across the switch and an impulse current through the switch.
本文通过电路实例进一步讨论了开关元件的电路特性，得出了在某些情况下，即开关元件两端存在电压跃变，且有冲激电流流经时，开关元件将消耗电路的能量的结论。
The CCD timing-driven impulse is designed by the CPLD device; the CCD integration time can be modified by the dial switch for the environment of different light intensity.
利用CPLD器件实现了CCD驱动时序脉冲的设计，针对不同光强环境设计了利用拨码开关实现对CCD积分时间的修改方法。
To realize small impulse current and quick generator parallel-in, the established synchronization model has the function to regulate differences of voltage virtual value, frequency and phase between two ends of the parallel-in switch to zero.
发电机同期并网时要求冲击电流要小，并网后发电机能迅速进入同步，因而文中建立的同期模型具备调节功能使得并网断路器两端的电压有效值、电压频率、相角3个分量的差为零。