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Transcript
How to read the value of a resistor? 22 ohm 470 x 0.1 From http://www.token.com.tw/resistor/resistor-color-code.htm 1 0 00 1 0 0 0 1k resistor: or What resistor value is (a) (b) Recap: Vin R2 Voltage divider Vout = I R1 R1 = Vin R1 R1 + R2 Thevenin’s equivalent Rth Vth Rload How to avoid voltage droop? To appear in Quiz Method 1: apply kirchoff’s law Method 2: use Rth = Vth/Is Is is the short circuit current. When we short the output to ground, what is the current through R4? Q = CV I = C dV/dt Zc = 1/jZC ZL = jZL ZR = R I tan 1 §¨ © zL · z R ¸¹
