1. Convert the current source in the following figure to a voltage source o a 1-20...
See Figure 8.1. When the current source is converted to a voltage source, the equivalent voltage is 0.3 V 3000 V 3.33 V 30 V
Use superposition to find the voltage across the 6 A current source in Figure 3.
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase the output resistance of the current source. If Q, is operating at gm 1 mA/V and has VA-= 10 V, and if the maximum allowed de voltage drop across R, is 0.3 V, what is the maximum avail- able output resistance of the current source?...
1. Design an approximate current source from an ideal voltage source and a resistor in series with it. The short circuit current should be 20 mA which should drop to no lower than 18 mA when a 10 kS2 load is attached. What is the open circuit voltage VTh and series resistance VTh
For the circuit in Figure 1, you need
to calculate the current I2 and the voltage
across the current source. (10 marks).
B1. For the circuit in Figure 1, you need to calculate the currently and the voltage across the current source. (10 marks). R2 = 6.222 12 R 512 R4 8.212 2.5 A R3 34.7.12 E 10 V
7. In a PARALLEL Circuit, with Source Voltage, Vs, Source Current, Is, that contains N Resistors, which of the following is true? a) There is 1 current and N Differential voltages = Source Voltage, Vs. b) There are N currents and 1 Differential Voltage = Source Voltage, Vs. c) There are (N+1) currents and 1 Differential Voltage = Source Voltage, Vs. d) There are (N-1) currents and 1 Differential Voltage = Source Voltage, Vs.
6. In the circuit of Figure 6.21, the voltage source is VG 10 sin ot V, where the fre- quency of the source is 20 kHz. (a) Find the current through the resistor. b) Find the current through the inductor. (c) Find the amplitude of the total current flowing out of the source. (d) Find the phase between the voltage of the source and the current flowing through it. 32 mH
The frequency of the sinusoidal voltage source in the circuit in Figure 1 is adjusted until the current i, is in-phase with v. a) Calculate the value of (f) in Hertz at which both the voltage and current are in phase. b) If vg = 30 cos(2nft) V[where'f' is the frequency obtained in part a ), Determine the steady state expression for current, i, (50/3) kN2 1.2k12 w 50 nF 200 mH Figure 1
Using source transformations, find the current I and the voltage Vab of the circuit in Figure 9 (Ans: -0.2A, 8V) R60 ab 40 2 E224 V E348 V Figure 9
3) Carry out the following conversions (a) Convert -30 dB to voltage (or current) ratio (b) Convert 30 dB to voltage (or current) ratio (c) Convert 0.125 voltage (or current) to dB (d) Convert 1000 voltage (or current) to dB Solution