A relaxation ascillator using a UJT is to be designed for triggering an SCR. The UJT has following data: 1 = 0.6 mA, V = 18 V, V, 1 V, Rbb = 5 kn, n = 0.72, C = 0.04 μF, firing frequency is 2 kHz, normal leakage current with emitter open is 4.2 mA. Compute the values of R, R₁ and R₂.

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BJT (Bipolar Junction Transistor)

A BJT is a semiconductor device with 3 terminals that consist of a p-n junction diode that can amplify the signal or current. It is a current-controlled device. The three BJT terminals are base, collector, and emitter. The BJT works with the charge carrier, the two type of carriers in the BJT are holes and electrons, the charge carriers flow by the process of recombination. The signal to be amplifier is generally given as the input at the base terminal and an amplified form of it is available at the collector terminal.