OUTPUT CONNECTION FOR NEUROSTIMULATION AND ELECTROANAESTHESIA

摘要

The output connection arrangement consists of an excitation circuit (1) of high-frequency current, which is connected with the base of the first transistor (4) of totem-pole power output stage, where the base of the second transistor (5) is connected into the centre of divider consisting of the first resistance (8) and of Zener diode (9). Between the transistor collectors (4, 5) the primary winding of output transformer (7) with brought out centre is connected, which is further connected through the second resistance (3) with base of the first transistor (4) and with the second terminal of the first resistance (8). Between the transistor emitters (4, 5) the third transistor collector (6) is connected, in whose emitter a serial combination of the third resistance (10) and a diode (11) in forward direction is connected. The base of the third transistor (6) is connected with the output of low-frequency current excitation circuit (2). Secondary winding of the output transformer (7) is the general output of the whole connection arrangement. The solution can be used in devices for electro-analgesia and intracerebral electrotherapy.<IMAGE>