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Download generators - ingles-escrito-uah-08
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Transcript
An electric network is excited when there is an answer, that means, there are currents in its electric branches and voltage in its branch points. GENERATORS A generator is a device whose function is excite the electrical circuits. These devices can be classified in: Voltage generators and Current generators And they can be classified in real ideal The real voltage generator To study this device, it is equal to an ideal voltage generator in serial with a resistance. In this type of device, the potential difference in its terminals depends on the current that flows through it. In the practice these generators can be built but they can be considered as an ideal generator for many purposes. For example: A battery A common collector transistor The real current generator To study this device, it is equal to an ideal current generator in parallel with a resistance. Example A common base transistor This generator sets a current through its terminals that depends on the potential difference existing between them.
