Question

Find R in the network in the figure below in order to achieve maximum power transfer. 2 ΚΩ ΑΛΛ- 4 ΚΩ +2V 4 ΚΩ 1 ΚΩ RL RL k2 the tolerance is +/-2%

Answer 1

Calculate the VG = The vinan's voltage between open circuled load. 2kn v 4kr th 十 zw ukr | Кл Vte Let V, Vte are no de voltases Apply KCL at nude v V-2 V V-vth + 2K + UK CO UK av-4 +V+ -vthao 4V-VA? = op lp Apply Kel at No de Vih th-v Чk Vih + Vth-vthVie=0 54th = =v

4 (suth) - Yth = 4 2outh-VH = 4 194th=4 Vth= 4 volts 1 y volts Rth calculation Voltage source short circuit 4kn ako Akr lkr Roth 4kr 472 8 ller eta -kir You = 1 kr kr Reh (674) km = 1 keer Rth= 5%! 16 3 16 19 okr 3 1 apr 16 19

Rie= 16 ke 19 VG = 4 la ti Maximum power trauber occurs when R = Rie 16 19 ka=0.842 kg R=0.8421kn