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IPC Subgroup
H03J 1/18

Control by auxiliary power

Introduced: September 1968

Last revised: January 2006

Full Title

Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general > Control by auxiliary power

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

2 direct subcodes

Child Classifications

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  • H03J 1/2 the auxiliary power being switched on as long as controlling current is switched on
  • H03J 1/22 with stepping arrangements actuated by control pulses