Explain the following code. What language? What does it do? What is the result?
SELECT date_trunc('month',date),avg(value)
FROM rain
GROUP BY date_trunc ('month',date)
ORDER BY date_trunc('month',date);
In: Electrical Engineering
Design a bandpass active filter to pass frequencies between 700 Hz and 2100 Hz, and with K= 63.
Please include the transfer function, blot plot, multisim, and the matlab code.
In: Electrical Engineering
In ATmega328P What register are available? Address? Data? Special? Other?
Hello, Do you mind to list the registers as classified under either address, data , special and others
In: Electrical Engineering
Q13. A buck converter is constructed with a MOSFET which has an on-state resistance of 75m?, and a diode with a forward voltage drop of 1.3V. The MOSFET exhibits switching rise and fall times of 50ns. The converter operates from an input voltage of 400V and. The converter supplies 1.2kW at an output voltage of 300V and switches at 150kHz. The MOSFET and the diode are mounted onto separate heatsinks. The ambient temperature in which the power converter operates is 45°C.
Other thermal data are:
MOSFET Junction to case thermal resistance, R?jc 0.5°C/W, Case to heatsink thermal resistance, R?chs 1.2°C/W
Diode Junction to case thermal resistance, R?jc 0.8°C/W ,Case to heatsink thermal resistance, R?chs 1.5°C/W
(a) Calculate the power dissipation in the MOSFET.
(b) Calculate the power dissipation in the diode.
(c) Calculate the thermal resistance of each heatsink if the temperature of the devices’ junctions is to be restricted to 110°C.
In: Electrical Engineering
6.2 Name the three key components of a phase locked loop and write a brief explanation of how each component works.
In: Electrical Engineering
6.2 Name the three key components of a phase locked loop and write a brief explanation of how each component works.
In: Electrical Engineering
Briefly describe how strain gauges may be used to measure the following signals:
(a) Force
(b) Displacement
(c) Acceleration
(d) Pressure
(e) Temperature.
In: Electrical Engineering
1) Illustrate an NMOS transistor channel condition for 3 different regions of operation when 1) VGS<VTN . (12 points)
2) Illustrate and Briefly explain saturation phenomenon when VDS> VGS-VTN in an NMOS. (10 Points)
In: Electrical Engineering
Write C18 program to get bit RB3 and send it to RC2.
In: Electrical Engineering
(TCO 5) Briefly describe the operation of an electromagnetic relay.
In: Electrical Engineering
Design an "L" type network using discrete components (inductors and / or capacitors) to couple a load of ZL = 150-j200 Ohms to a system with Zo = 100 Ohms. Choose 1 GHz as the center frequency.
a) Show the entire procedure step by step using the Smith Chart and clearly marking where you got the results from. Calculate the values of the inductance and / or corresponding capacitances.
b) Simulate with ADS your circuit and clearly show the frequency for which you designed the coupling network. It must be clearly marked in the ADS plots.
c) Now use commercial components (standard values) of
capacitors and inductors closer to your results of part b, and
simulate again. Indicate if there is any difference between the two
simulations. Justify your answer referring to the results
obtained.
In: Electrical Engineering
discuss how it is possible to achieve the benefit of large low cost and high speed memory with the cache-main memory hierarchical organization? Discuss the two properties of computer programs that make it feasible to meet this goal
In: Electrical Engineering
1. Design a sequence detector, a Mealy finite state machine to detect the serial bit sequence 1101, where the most significant bit (MSB) comes first and the least significant bit comes last.
A) Draw the state diagram
B) Draw the state table
C) The circuit is to be implemented using JK flip-flops and combinational logic circuit. Derive the Boolean expression necessary for this implementation.
D) Sketch the circuit diagram for your design. This should show all the flipflops, logic gates and interconnections.
In: Electrical Engineering
Explain in detail using diagrams and schematic, the process of calibrating PX-70 Differential Pressure Transmitter (DPT) to measure pressure in the range 0 to 4 psi.
In: Electrical Engineering
I have a sim 808 (fona 808) breakout connected to an adruino uno. write a code that makes it pick up automatically when called from certain numbers.
In: Electrical Engineering