Figure Q.4(c) shows a Schmitt Trigger circuit. Assuming that the output will saturate at ±V_sat = ±12 V and V_i = 8 sin wt [V],
(i) Derive the expression for V_UTP and V_LTP.
(ii) Draw and label the output signal, V_o.
(iii) Draw and label the transfer characteristic, V_o vs V_i.

R2 = 10 k2 ww V Vo R1 = 5 kQ R2 = 20 k2 Figure Q.4(c)