.~ Phase controlled switching using electronic tube or a three or more terminal semiconductive device {8}
238
.~.~ With soft start
DEFINITION
Classification: 323/238
With soft start:
(under subclass 237) Subject matter wherein at the time of start up of the system, the output is gradually increased over a plurality of cycles from zero to the desired level.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321, for soft start of external or operator controlled systems.