Ujt Diagram. How to use an ujt for triggering an scr. Two bases and one emitter.
How to use an ujt for triggering an scr. The ratio of rb1 to the total interbase resistance rb1 rb2 will fix the value of the voltage at the cathode terminal of the emitter base junction. The fundamental components of this type of triggering circuit is depicted in the below shown diagram 6.
The ujt circuit proven in the below shown diagram resembles the relaxation oscillator circuits explained in the a couple of previous segments apart from that its rc constants happen to be selected to provide quasi square wave output similar to that of a standard transistorized astable multivibrator.
The ujt circuit proven in the below shown diagram resembles the relaxation oscillator circuits explained in the a couple of previous segments apart from that its rc constants happen to be selected to provide quasi square wave output similar to that of a standard transistorized astable multivibrator. The schematic diagram symbol for a unijunction transistor represents the emitter lead with an arrow showing the direction of conventional current when the emitter base junction is conducting a current. How to use an ujt for triggering an scr. One relatively popular application of the ujt is for triggering power device such as the scr.
