电子类读书笔记英文翻译

桂林航天工业学院

毕业设计

英文资料翻译

专业：电子信息工程技术

姓名：黄莉珊学号：201004520121

指导教师：潘丹青

20 13 年 5 月 10 日

英文翻译要求：

1．要求所选用的英文资料必须是专业技术资料。

2．必须附上英文资料原文。

3．英文原文和翻译的中文格式、字体同读书笔记。

4．用A4纸打印，装订后放入档案袋交指导教师。

桂林航天工业学院电子工程系

Reading notes: power electronic technology By reading the power electronic technology, I realized, power electronic technology is a new and applied in the field of power electronic technology, is the use of power electronics device (such as thyristor, decision, IGBT, etc.) for power transformation and control technology. Power electronics technology "power" of the transformation power but to hundreds MW even GW, can also be small to a few W even below 1 W, which is mainly composed of information processing and information electronic technology power electronic technology is mainly used in power transformation. And power electronics technology is divided into power electronic device manufacturing technology and communication technology (rectifier, inverter, chopper, inverter, a disguised form, etc.) two branches. In the module power technology, reading, I learned that power electronic technology is the use of power electronic devices to realize industrial scale electrical energy transformation technology. In general, it is a form of industrial electrical energy is converted into another form of industrial electricity. Will, for example, communication can transform electrical energy into direct current or dc can transform into ac electricity; The industrial frequency power conversion equipment for the required frequency of power supply; In the normal ac power is interrupted, using inverter (power converter) battery dc can transform into power frequency ac electricity. Application of power electronic technology can realize the conversion between electric energy and electric energy. For example, the use of solar cells convert solar radiation into electricity. With the electronic technology, power electronic technology transform electricity as energy rather than as a carrier of information sensing. So people focused on the conversion of electrical power.

Reading notes 2: electric fan speed control method is discussed Fan speed control function is one of the basic function of the electric fan, is also one of the important ways of energy saving. Fan speed control methods based on the use of the motor. Single-phase capacitor motor and cover pole motor of the electric fan, electricity KangFa by tapping method, capacitance method and electrical method for speed control. Tap adjusting speed, reaction speed and capacitance is the basic principle of speed regulation by changing the winding each v number of turns to speed the reduce winding voltage to reduce magnetic field strength to realize the speed control.

Tap method used more widely, it is characterized by less consumption, with makings provinces, light weight, but the winding, wire, wire is more complex, use scope is limited to a certain. Tapping speed regulation of motor has a primary winding, the middle three kinds of coil winding and the auxiliary winding. According to the middle winding connection position is divided into L, T, H. Desk fan, wall fan, floor fan adopts the tapping speed control method is more, as the raw material price fluctuations, however, due to insufficient number of turns of the fan motor winding, affected each fell down a winding circle number, lead to speed than can not meet the standard requirements.

Reactor control method through the string into the different inductive reactance value of reactor per volt changing winding circle number to speed, it is the feature of each block speed adjustment easy, winding is simple and convenient maintenance; Disadvantage is can't follow one's inclinationsly regulation.

Capacitance vice winding speed regulation method is by changing the voltage phase Angle of the relationship between indirect change main winding voltage to control the size of the motor windings to produce torque, achieve the purpose of regulating the main winding is constant voltage, and vice winding is a variable. Capacitance of governor at low cost, light weight, electromagnetic noise is small, but the short service life and low speed gear is hard to start. Ceiling fans and fan due to installation position limits, most use reactance or capacitance timing.

Electronic governor is to use semiconductor principle of silicon controlled rectifier, it by changing to the two-way thyristor control