regulator

as in controller
a mechanism for adjusting the operation of a device, machine, or system the voltage regulator will make sure your car's alternator gets the right amount of electricity

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“Regulator.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/regulator. Accessed 30 Jan. 2023.

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