Question

Circuits

Vg is applied when the initial energy is zero and t=0.

Qustion) Write Ia, Ib and Vo include Vg.

Vcc is large enough that no saturation occurs.

p.s) Secondary differential equation for V0 I solved.

C C ia R/2 R Ib • V cc R 20 - V cc Vo

d^2V0/dt^2 = - Vg/R^2C^2

Answer 1

Apply VaA VO + Vg. - Va= Ng X R/2c R//2c +R Rllac R 25C R+ R L 2 SCR + 1 C کد va R 2SCR+1 Vg x Vg PISCR+1) R QSCRAI +R

a = Varo So R Vg R KCR+1) KCL at node B Apply 60-0) SC + V [Vo-vo)SC =0 + R/2 SC Vo - SCR Vo V. Ř + 25C 2(1+SCR) But (ub-o) sc ia Vo 2(SCRIR So Vs 2(SCRH) SCR - SCR 2(1 + 'SCR) vo V, SCR (SCRH) 82 xuo R? 2 v. s = d., 5² d² dt² RC2Vg dt? ib= (vo-Volsc SCR V. -V. -Vo) sc QC1+CR) ib= Vosc.. 2- SCR 2-SCR 2(1+S CR) Plitrer) 2-SCR ib • Vg 2014 SCR) SCR?