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There are several.
Some use an A/C inverter. The DC is put through an oscillator using a coil. A switching transistor then charges a capacitor, while a dedicated power supply chip controls the mark/space ratio of the pulses, to regulate the voltage and current.
Simpler devices, like the 7805, are power transistors which have a zener base reference, to control the voltage passed by the transistor. These just add resistance to a higher voltage and reduce it to a lower one. They run quite hot and have heat sinks.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoA mechanical voltage regulator works by using resistance and heat to adjust and regulate voltage. As certain conductors of electricity change the conductive properties when a change in temperature, this changes are used to regulate and adjust voltage.
Wiki User
∙ 14y agoA Voltage Regulator is just a Zener Diode that is wired across the alternator terminals.
... no.
Doing this will blow the zener - don't try it at home or anywhere else.
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