Type of inductor coil | Electronics › Electronics › Type of inductor coil This topic has 1 reply, 2 voices, and was last updated 9 years, 8 months ago by AJISH ALFRED. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 21, 2014 at 5:39 am #3091 ManuParticipant Which type of inductor coil is used in AC to DC adaptors? July 9, 2014 at 3:27 am #11884 AJISH ALFREDParticipant Normally step-down transformers are used, if you are talking about 230V AC to DC adaptors. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In