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1. If the output load current of the LM7805 (U3) is 100 mA, what is the approximate peak-to-peak input ripple voltage at its input?
2. For (U2) to properly regulate, what is the minimum level of dc input voltage required?
Construct a horizontal line on your I versus V graph at the point I = 1 mA. This line will intersect each of the sloping lines at two separate points. Explain the significance of each of these intersections
A 6600V/230V, 50Hz single phase core type transformer has a core section 25cmX25cm. Calculate the approximate number of primary and secondary turns if the flux density in the core should not exceed 1.1Wb/m2.
An analog LTIC system with impulse response function h(t) = u(t+1)-u(t-2) is presented with an input x(t) = t(u(t) - u(t-2)). (a). Determine and plot the system output y(t) = x(t)*h(t)
A negative unity feedback loop with input R(s), output Y(s) and error E(s) is placed around the system \(H(s)=1/((s+p_{1})(s+p_{2})...(s+p_{q}))\)(a) Find the transfer function E(s)/R(s).
Each start/stop station contains one NO start pushbutton and one NC stop pushbutton.
Design a CMOS inverter taht has parameters Voh=12V, Vol˜0, and Vic=4V, where Vic is the cross over voltage. Specify Vtr, W,and L for each of the MOSFETs for a minimum line width of 1.5 μm.
A transmitter transmits an AM sinal with a carrier frequncy of 1530kHz. When an inexpensive radio receiver (which has a poor selectivity in its RF-stage bandpass filter) is tuned to 1530kHz, the signal is heard loud and clear.
Two 1-km fibers are spliced together. Each fiber has a 3-dB loss, and the splice adds 2 dB of loss. If the power entering is 2 mW, then how much power is delivered to the end of this combined transmission line
Write an instruction sequence to subtract the 4-byte number stored in memory locations 0x10-0x13 from the 4-byte number stored in memory locations 0x00-0x03 and store the difference in memory locations 0x20-0x2
D rectangular resonator. Write a 3D FDTD algorithm using Equations (4.18) and (4.19) in a 100 × 50 × 20 m box with perfectly conducting walls.
Calculate the drift current in cylindrical piece of material (crossection is 1cm2) with conductivity 10E3 1/Ohm*cm if the internal electric field directed along cylinder axis equals 10 V/cm.
Two-wattmeter method is used to measure the power absorbed by a 3-phase induction motor.- Find the power absorbed by the machine. - Find load power factor.
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