使用完毕应将电源关断。
关断电源，在重新供电时按下用户按钮(离板的外边缘最近的按钮)。
Remove power, then hold down the user button (closest to the outside of the board) while reapplying power.
为了避免此类现象的发生，开发设计了基于硬件直接控制的防遗忘关断电源开关控制器。
In order to solve the problems, we designed switch controller guarding against forgetting to turn off power supply based on hardware.
微热型吸附式干燥机同时需关断加热器电源。
The heater's power supply also needs to be disconnected for micro heat absorption drier.
周期性关断电源的方式可以达到降低比较器功耗的目的。
To shut down the power periodically can reduce the power consumption of comparator.
关断汽车电源开关，前大灯自动断电，避免蓄电池电量耗尽。
While turn off the power of the car, the headlamp will power off automatically to avoid the power of storage battery use out.
自关断功率半导体器件在步进电机电源、交流变频电源等电子线路中应用广泛，而烧管子问题严重影响自关断器件工作的可靠性。
Automatic shutoff power semiconductor widely applied in electric circuit such as SM's power, ac variable-frequency power etc. But burning tube often affected its reliability.
功率步进电机的GTO驱动电源，采用了新型开关元件“可关断可控硅”（简称GTO）。
The GTO drive source of the power stepping motor is made up of the new-type of switching elements—the Gate turn-off Controlled Rectifier (GTO).
通过设置死区时间实现开关功率器件的零电压开通与关断，利用该变换器研制出GTO门极驱动用电源。
The turn-on and turn-off of power devices under zero voltage are realized with addition of dead time. The power supply for GTO gate driver is developed by use of the converter.
脉冲电源的形式和用途有多种，文章研究了一种软开关直流脉冲电源，主开关管可以实现零电流开通、零电压关断；
This paper research a soft-switch DC pluse power supply. The turning on of main switch can achieve ZCS, and turning off is ZVS.
本文电源的核心部件是飞盘式机械火花开关，利用该部件的开通与关断，就可以实现电源输出脉冲为矩形方波。
And the waveform of the output pulse looks like rectangular. The pivotal component of the power supply is Frisbee Mechanism Spark Gap Switch, which is never seen in other power supply before.
安全转换开 关断开，电源输入端导通电源输出端。
When the safety transfer switch is open, the power output end is conducted by the power input end.
安全转换开 关断开，电源输入端导通电源输出端。
When the safety transfer switch is open, the power output end is conducted by the power input end.
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