Timing circuit is usually made up of power supply unit, panel circuit and timing board, it is the digital control part of power source.
定时电路一般由电源模块、面板电路和定时板组成，是功率源中的数字控制部分。
This article proposes the operating principle and the program block-diagram of the automatic switching control to the main circuit-breaker on board of each powered unit of the train at proper time.
本文介绍了该装置对列车各车组适时进行主断路器自动分合闸控制的工作原理及程序框图。
Preferably, the inverter unit further comprises a conductive plate (50) that covers the control board (17) and is electrically connected to the conductive pattern (92).
逆变器单元优选还包括覆盖控制基板（17）并与导电图案（92）电连接的导电板 （50）。
Every drive board can drive a diode laser. The function of control unit single chip in the driver board is to control the aging process of 16 laser diodes in current mode or in output power mode.
驱动板的控制单元-单片机实现对16个半导体激光器的老化过程进行监控，从而使激光器工作在上位机所指定的恒流状态或者恒功状态下。
Hardware circuit and printed circuit board of the electronic control unit ECU and internetworking ECU had been designed.
论文对电子控制单元ecu和网络互连ecu进行了硬件电路设计和电路板制作。
The utility model discloses an improved modular power unit, which mainly comprises a shell, a heat radiator, a large power device and a control circuit board.
本实用新型公开了一种改进型模块化功率单元，它主要由壳体、散热器、大功率器件和控制电路板组成。
On-board green-fence trimmer; Remote control system; Transmitting unit; Receiving unit;
车载式绿篱修剪机；遥控系统；发射单元；接收单元；
On-board green-fence trimmer; Remote control system; Transmitting unit; Receiving unit;
车载式绿篱修剪机；遥控系统；发射单元；接收单元；
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