Acronym Finder

Frequency drive-variable or (VFD) that its main purpose is to control the speed of the engines, alternating current. This drives in addition to the application to control the speed of the drives can be used at low speeds, the characteristic curve of torque-speed is very desirable similar machine, the DC found, and in many applications can be using this method, engines, DC engines, si Cage, the squirrel replaced.

one of the important parameters in determining the speed of the engines, alternating current., the frequency of the input voltage to it is that drives the variable frequency is also based on the same work. Since that change frequency reactance induction motor also changes. drive, should the voltage of the sync frequency setting.

more drives, variable frequency to adjust the frequency, the prime power input, a direct current conversion work, and then again to make it alternate with the frequency of the desired him back. That drive for power conversion DC to DC from what way to a large extent to producer, date of production and the size of the motor that the drive should control it does depend on. the voltage output usually in the form of a square, which is for engines, in case of a particular problem does not cause, however, some manufacturers use a single additional waveforms, stair, and brought them up to shape of the sine wave gets closer....

Engine (SRM) is a mode function of the car . and the car mode, the latter of which is the same as mode function is that it (SRG) say.

the basis of the creation of this engine to the year 1842 ad pitted (when Scottish inventor named Robert Davidson from the engine as the main stimulus locomotive used), but the initiative of RE-it because of the benefits of expensive not-being and progress implements with high power (electronics power), etc. became possible and, from 1969 (est. engine variable in order to applications, variable speed was proposed.

although this engine is identical because the speed of rotor field rotating typical synchronous motor, but has new features certain can be that it of the synchronous motor, typical distinct. Also this motor to the stepping motor, also very much resembles, but its function is different. This motor has a winding, the field, the same DC motor for winding, the stator is on the rotor, its winding or magnet. (stator) and (rotor), the both have poles highlights. hence, from this car as the car bumps, Double be remembered.

When a pair of Poles of the stator, which is opposite the? triggering? of the rotor with the pole, coax. In a magnetic circuit at the moment of incitement. piece rotating (here the order of the rotor machine, switch .) give preference to the situation come that the lowest magnetic. When the two poles of the rotor coaxial with the two poles of the stator. set the other poles of the rotor relative to the poles of the other stator coax are not. Then to make each one of these sets, the pole, the stator coaxial with the poles of the rotor. respectively are aroused. With this arrangement, incessant stream into the winding, the stator cause the rotor to be permanently rotated.

the most important disadvantages of this type of motors having ripple torque and High create acoustic noise (acoustic) too much. that with the different methods of control, correction and optimization of the engine design it can be improved the alliance....

SDHC and SDXC different types of SD that are based on the standards of the Society of SD are made.

card SDXC to organize space information of the file system exFAT. Devices and cards, SDXC in addition to the interface UHS that SD and SDHC are used. of standard UHS-I and UHS-II also supports that fast up to 104MB/S and 312MB/S for exchange of information make it possible....

SDHC and SDXC different types of SD that are based on the standards of the Society of SD are made.

memory cards SDHC in capacity of between 4GB to 32GB and SDXC cards with capacities over 32GB of production are....

Mounts EF in 1987 by Canon Inc introduced. This mounts the same, is something that the company is in cameras full-frame category top of herself, such as D Mark IV5 and D Mark II6 advantage of it. Each EF lens has a motor, auto focusing is internal and don't have this two, letter stands for Electro-Focus, meaning the Focus Electric. You products Canon lens with this mount, and without the ability to auto-focus domestic find never miss. But this thread is about the company, the third party applies not and some products and then for the mounts, EF of manual focus benefit. If the lens you see that for Canon camera supplied and details of certain of the Prudential offer? can almost be sure that it was the lens for mounts, EF is designed.

Mount EF-M by Canon for use in Series mirrorless cameras, the company, such as M100 is designed. These lenses just and just on the mounts, EF-M usable they will be. If you desire to use EF lenses or EF-S, TAKE NOTE, You can use the adapters for it on Mount EF-M install....

VR to. virtual reality. in a device for the virtual game or watching a movie. goes to work....

Canon of the three types of Mount lens the use. Mounts, the original and the standard EF and two mounts, derived and ancillary EF-S and EF-M.

mounts EF in 1987 by Canon Inc introduced. This mounts the same, is something that the company is in cameras full-frame category top of herself, such as D Mark IV5 and D Mark II6 advantage of it. Each EF lens has a motor, auto focusing is internal and don't have this two, letter stands for Electro-Focus, meaning the Focus Electric. You products Canon lens with this mount, and without the ability to auto-focus domestic find never miss. But this thread is about the company, the third party applies not and some products and then for the mounts, EF of manual focus benefit. If the lens you see that for Canon camera supplied and details of certain of the Prudential offer? can almost be sure that it was the lens for mounts, EF is designed.

mounts, EF-S by Canon in the camera, the sensor crop, such as 7D Mark II, 80D, and 1300D are used. It is the place where the sensors in these cameras are smaller. lenses, the mounts can also be smaller and lighter. A lens EF-S on the mounts, EF will not work, but this photo, honest, not a EF lens without any problems on the camera that mounts EF-S will be used....

Devices emitting rays of electromagnetic...