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It is required to design the circuit to provide an output current IO = 1 mA at VO = 1 V. What values of IREF and R are needed?
Find the voltages at all nodes and the currents through all branches in the circuit of Figure
Using the ideas embodied in Figure, design a multiple-mirror circuit using power supplies of± 5 Vto create source currents of 0.2 mA,
Find the values of gm and ro at the bias point. If terminal Z is grounded, terminal X is connected to a signal source having a resistance
Figure(a) has gm = 10 mA/V and a large ro. Find the open-circuit voltage gain and the output resistance.
Using the topology of Figure, design an amplifier to operate between a 2-kO source and a 2-kO load with a gain vo/vsig of -40 V/V.
Explore the possibility of improvement by reducing the loading of the source by the amplifier input.
What base-to-collector open-circuit voltage gain does your design provide? If Rsig =RL =20 kO, what is the overall voltage gain?
Find the value of RE to establish a dc emitter current of about 0.5 mA.Find RC to establish a dc collector voltage of about +0.5 V.
Determine the dc collector current and dc collector voltage of each transistor.
Find the dc collector current and the dc voltage at the collector.Replacing the transistor by its T model, draw the small-signal equivalent circuit
Find the input resistance Rin and the voltage gain vo/vsig. Assume that the source provides a small signal vsig and that ß=100.
Figure, the BJT used is specified to have ß values in the range\ of 50 to 200 (a distressing situation for the circuit designer).
Find the dc emitter current. Assume ß=100. Neglecting ro, find Rin , the voltage gain vo/vsig, the current gain io/ii , and the output resistance Rout
Repeat (b) for the case when capacitor CB is open-circuited. Compare the results with those obtained in (b) to find the advantages of bootstrapping
If the circuit is fed with a source having a 100-kO resistance, find the transmission to the base of Q1:vb1/vsig.Find the overall voltage gain vo/vsig.
Upon cooling, at what temperature would the first solid appear?What is the first solid phase to appear, and what is its composition?
Calculate the batch composition (in weight percent) necessary to produce a final microstructure that is equimolar in silica and mullite.
Find the required value of (IDRS) and VG to limit ?ID/ID to ± 5%. What value of RS is needed if ID is 100 µA?
Provide a design that biases the transistor at ID =1 mA, with VDS large enough to allow saturation operation
Consider the single-supply bias network shown in Figure. Provide a design using a 9-V supply in which the supply voltage is equally
Find how low ß can be while the value of IC does not fall below that obtained with the design of Problem 7.106 for ß=90.
This can be achieved by connecting a resistor between base and emitter, as shown in Figure Design this circuit for ß = 100.
voltage gain for a high-resistance load is shown in Figure. Find the values of I and RB to bias the BJT at IC =1 mA and VC = 1.5 V. Let ß=100.