voltage regulator

English Thesaurus

1. a transformer whose voltage ratio of transformation can be adjusted (noun.artifact)

hypernym	:	transformer,
definition	:	an electrical device by which alternating current of one voltage is changed to another voltage (noun.artifact)

part meronym	:	electrical system,
definition	:	equipment in a motor vehicle that provides electricity to start the engine and ignite the fuel and operate the lights and windshield wiper and heater and air conditioner and radio (noun.artifact)