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- mechanical switching element 机械开关元件
- Mechanical switching is inherently slow and frequently unreliable. 机械开关速度有一种固有的缓慢性,而且经常不可靠。
- Vibration of mechanical switch contacts following closure, which results in a short period of intermittent conduction. 机械开关闭合时产生的振动,它会在短时间内引起间歇导电。
- This paper deals with a new type square wave power supply for A.C. arc welding in which very fast switching element IGBT is used for its inverter. 研究了以开关速度很快的IGBT作为逆变元件的交流方波弧焊电源。
- The switching element consists of a thin metallic membrane, which has the metal-isolator-metal contact with a capacitive shunt switch as SPST. 开关为一薄金属膜桥组成的桥式结构,形成一个SPST并联设置的金属-绝缘体-金属接触。
- A light tap on a smooth surface or the proximity of a hand replaces physical actuation of a mechanical switch. 在光滑表面上轻轻一触,或者用手靠近一下,就能代替机械开关的物理传动。
- The power control circuit comprises a delay circuit, a potential converter and a switch element. 电源控制电路包括延迟电路、电位转换器,以及开关元件。
- The dehumidifier for which the dual-site electric apparatus mechanical switch is adopted is uneasy to be damaged and has long service life. 除湿机这种采用双位的电器机械开关,不易损坏,使用寿命长。
- The PDP driving apparatus includes a high side switch element and a low side switch element which are electrically coupled in series. PDP驱动装置,包含被电性串联连接的高端开关元件和低端开关元件。
- In the thesis, the main research topic is mechanical switch, including SPST (Single Pole Single Throw), SPDT (Single Pole Double Throw) and keyboard switch. 本设计中主要研究的是机械类开关,包括单刀单掷开关和单刀双掷开关及键盘开关。
- The operating principle of a bridge type Pulse Width Modulation(PWM) power source,driving of switch element IGBT,overvoltage and overcurrent are briefly described in the paper. 概述了桥式脉冲宽度调制(PWM)功率源的工作原理,以及开关元件IGBT的驱动、过压、过流保护等问题。
- The bidirectional switch element is an element which can conduct current of a same direction when connection and not conduct current of different directions when disconnection. 双向开关元件,是接通时至少可以使一个方向的电流导通、断开时则不使双向的电流导通的元件。
- Voltage switching type SPD generally composed of discharging gap, gas discharging tube, thyratron (silicone controllable rectifier) and three-ending bidirectional silicone switching element. 电压开关型SPD常用的元件有放电间隙、气体放电管、闸流管(硅可控整流器)和三端双向可控硅开关元件。这类SPD有时也称作“短路型SPD”。
- First-generation computer A computer that used vacuum tubes as switching elements. 第一代电脑采用真空管做开关元件的电脑。
- Fixed trip mechanical switching device 固定脱扣机械开关装置
- First-generation computer: A computer that used vacuum tubes as switching elements. 第一代电脑:采用真空管做开关元件的电脑。
- trip free mechanical switching device 自由释放机械式开关
- metallic speech-path switching element 金属接点式话路开关元件
- Besides low noise, high input impedance and CMRR,this pre-amplifier features small size, high reliability and stability, no mechanical switched noise, and is suitable for micro-computerized physiologic signal acquisition system. 该电路除了具有低噪声、高输入阻抗和高共模抑制比外,还具有体积小、可靠性高、性能稳定、无机械噪声等优点,适用于微机化和小型生理信息检测系统。
- The noncrystalline material is used as the iron core of transformer and MOS-FET is employed for the main circuit switch elements. 该电源选用了非晶态磁性材料作为高频变压器的铁心;采用场效应管作为逆变器的开关元件;