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If the raw supply changes by 1.0 V, what is the corresponding change in the regulated output voltage?
Find VZ0 of the zener model. Find the zener voltage at a current of 10 mA and at 50 mA.
What is the regulator output voltage when the supply is 10% high? Is 10%low? What is the output voltage when both the supply is 10% high .
For both designs, the supply voltage is nominally 9 V and varies by ± 1 V. For the first design, assume that the availability of supply current .
Calculate values for the line regulation and for the load regulation for this circuit using the numerical results obtained in this problem.
At what forward voltage does a diode conduct a current equal to 10,000IS?
If a current of 1 Ma is drawn away from the output terminal by a load, what is the change in output voltage?
What is the effect on the forward voltage of the diode if an identical diode is connected in parallel?
Find the currents ID1 and ID2 that flow through the two diodes, and the voltage VD that appears across their parallel combination.
What relative junction areas should these diodes have if their currents must have binary-weighted ratios, with the smallest being 0.1 mA?
What value of V results? To obtain a value for V of 60 mV, what current I2 is needed?
Using the constant-voltage-drop (VD = 0.7 V) diode model, find the voltages and currents indicated.
Analytically, find the voltage corresponding to your estimate of current. By how much does it differ from the graphically estimated value?
What do you expect the voltages VR1 and V2 to become at 0°C and at 40°C?
A designer of an instrument that must operate over a wide supply-voltage range, noting that a diode's junction-voltage drop is relatively independent .
What is the apparent rise in junction temperature? What is the power dissipated in the diode in its final state?
A "1-mA diode" (i.e., one that has vD =0.7 V at iD = 1 mA) is connected in series with a 500O resistor to a 1.0 V supply.
Assuming the availability of diodes for which vD = 0.75 V at iD = 1 mA, design a circuit that utilizes four diodes connected in series.
What two current estimates would result from the use of the two values of VD? What is their percentage difference?
Suggest a combination of series and parallel diodes that will do the job as well as possible.
Assuming that the diodes in the circuits of Figure are deal, find the values of the labeled voltages and currents.
The connection is between the diode cathode and the positive terminal of the battery and the anode and the positive terminal are connected?
What are its positive and negative peak values? =positive terminal are connected?
If the peak value of vI is reduced by 10%, what do the peak and average values of iB become?