A regulator voltage , is a electrotechnical Organe or a Electronics component which maintains, within certain limits, at its exit a constant tension, independently, Charge and tension of entry.
Electromechanical regulators
Until in the years 1970, the Automobile S used an electromechanical regulator to control the output voltage of their Dynamo or their Alternateur. These regulators use several relay commutating resistance S in order to vary the operate current of the alternator and to thus make its output voltage independent of the mode of rotation of the engine and electricity consumption. Associated with a dynamo its role was also to insulate the dynamo with low mode, so that the latter does not discharge the battery while behaving like an engine.The recent vehicles use an alternator comprising an integrated electronic regulator, dismountable in the event of failure.
Linear regulators
A linear regulator, is a regulator voltage based on an active component working in its linear zone or on a passive component, like a Diode Zener, working in his opposite zone.
See also: Regulating linear
Regulators with cutting
A regulator with cutting, is a regulator voltage based on an active component working in commutation.
See also: Food with cutting
Comparative regulators linéaire/à cutting
The regulators with cutting fill the principal defect of the linear regulators: their poor yield. Indeed, the principal disadvantage of the linear regulators compared to the regulators with cutting, is that they behave like resistances variable thus dissipating much energy. The regulators with cutting thus replaced the linear regulators for the applications requiring a minimum of power (a few Watts). The principal disadvantages of the regulators with cutting are their greater complexity and consequently cost as well as the noise HF which they generate at exit.
See too
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Regulating linear
- linear Food
- Food with cutting
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