CPC Subgroup
G05F 3/04 wherein the variable is AC
Full Title
Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties > Regulating voltage or current > wherein the variable is AC
1 direct subcode
Child Classifications
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- G05F 3/06 using combinations of saturated and unsaturated inductive devices, e.g. combined with resonant circuit