TERMOREGULATOR INNEFATTANDE EN BRYGGA OCH ETT VERMEELEMENT MED TEMPERATURBEROENDE RESISTANS

摘要

A temperature regulator consisting of a bridge, the one branch of which consists of a heating element (1) with a temperature-dependent resistance and whose input diagonal branch is connected to an electric power source. The bridge's output diagonal branch is connected to a controllable valve (5). Via the controllable valve (5), the heating element (1) is connected to the power source. The branch (3) of the bridge that is opposite the branch formed by the heating element (1) is shunted by the output of an amplifier with positive feedback (6), whose input is electrically connected to the output diagonal branch of the bridge.