Question

The answered before but it was wrong, I can't figure it out how to find Tp= Ton+ Toff0.1 F, R C 100 k2, V_c = 6 V R Vo V+ AM OK

C = 0.1 uF, R = 100 k12, V_c=6 V AM 10K2 & loks

4. (continuation) Determine the exact oscillation frequency by making use of the exponential charge and discharge functions of an RC circuit. Note that the power supplies are V_c = +6 and V_e = -6 volts. Insert your answer in units of Hertz.

Answer 1

M voltage - to - frequency converter. When supply given, cl the AMU is in one of its Quasi state. When Va > Vc => Vo = +Vsat. Voe < Vc → Vo = -Usat. Let 'c' is initially unchanged, Ve=0. Ra I Vx = Vo (Ritra) 2 R2 . w ß (assume) Va = B vo ?

Frequency of oscillations : - f + Ti+T2 = T. T :- Jo calculate Ti consider charging of capacitor. Vc = Vf + [vi --Vf]et/al Vi = - Busat · V = +Vsat T= Rc at t=T,VC B Vsat. Bvsat - Vsat + [- A vsat -Vsat ]ēti/rc. RC ß = 1+(1+6) -T/Rc (I+Besi- eTorre (178) Tin en(4).rc. TT - RC. Incite Ta - To calculate to consider discharging of capacitor. Vi = pusat ; Vf = - Vgat ;-RC. At t-t, Vc = -p Vsat .. -Ta. - BVgat : - car (PVsat + Veat ) *** -ß ---+ (B+1) Talac Talle 1 Ta = RC. en ( 17 ) Ta = RC en (148) + P

uds T-T2 —— The op waveform is symmetrical square wave. T = Titto 1+ B • R2 RITR2 Rita R2 - == . Ta arc en (hte). 18. It (Rizky) - a - T = arc en (1+ 2R2) It a R2 R2 = 1+ ay r R2 RI - RitRg. frequency of oscillations — f- arc en (1+2R2) RI

100kr mu OUME #Tsuk loker & tol 3 lokz c 2Rc ln (1+2 B2) " 2 x 100x103 xo.lxlob in (H+ 2x10x103 ? 10x103 10.2 in 3 uo 55 HZ