Determine the maximum value of V; that will maintain the Zener diode in the 'on' state given Vz=15V, Izm=69MA, R=2580, RĻ=1.2k0. R R.
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- How is a solid-state diode tested? Explain.A silicon diode is in connected to a DC voltage source with Forward biased, the net currentflowing through the diode is (25mA) where the applied voltage across the terminals of thediode is (820mV). Determine diode temperature, if Is "dark saturation current", the diodeleakage current density in the absence of light is 3.4 × 10−10 AA diode is biased by a 0.9-V dc source, and its current is found to be 100 μA at T = 35◦C. (a) At what temperature will the current double? (b) At what temperature will the current be 50 μA?
- Consider the diode circuit shown below. If in the given circuit, Vs is replaced by a 12V battery and diodes D1 & D2 are considered ideal, what is the potential Vout equal to?Make a sketch of the I–V characteristic curve for a diode with Is = 0.02 pA for VD values from zero to 0.7 V. Use the approximation ID = Is e^(Vd/VT) What is the slope of a line tangent to the curve at ID = 2 mA?a) Use the diode’s characteristic equation,ID=Is exp(VD/VT), to determine the currentsourceIso that the output voltage is 1.5 V. b) If a load is attached to the output that draws 1 mA, what is the output voltage? c) If the circuit heats up to 40◦C, what is the output voltage without a load?
- A diode with n =1.6 conducts 45 mA at 0.75V at room temperature. Find the saturation current Is at room temperature (using the exponential model).For the diode applied in the circuit has a knee current of 5mA, and a maximum allowed power dissipation of 300mW. What are the maximum and minimum load currents that can be drawn safely from the circuit with constant voltage output Vo of 6V?A silicon diode has a forward current (IF) of 8.2 mA and a bulk resistance (RB) of 5Q. What is the value of diode forward voltage VF?
- A diode has wdo = 1.5 μm and φj = 0.8 V. (a) What is the depletion layer width for VR =5V? (b) For VD = −10 V?A diode is doped with NA=1018/cm3 on the p-type side and ND=1018/cm3 on the n-type side. (a) What are the values of pp, pn, np, and nn? (b) What are the depletion-region width wdo and built-in voltage?A 0.5 W zener diode is rated to have VzT = 4 V at a test current of IzT =11.0 mA. Its incremental resistance r, = 68.0 Ohms. What voltage will result when conducting a reverse current of Iz = 21 mA? What is the maximum safe current, using the linearized model and including the effect of rz?