Engineering, 30.03.2020 19:24, ynclankaedon
One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be able to see from your results in part 1 that it has a DC component that depends on the duty cycle, D. If the voltage is applied to a system that is low pass in nature, it will respond to the DC component of the signal while being largely unaffected by the other frequency components. Assume the PWM signal is applied to the low-pass system represented by the frequency response function H(j omega) = 1/j omega tau + 1, where the time constant tau. Show that the sinusoidal steady-state output y(t) can be expressed as y(t) = C_o + sigma_n=1^infinity C_n/squareroot (omega_0 n tau)^2 + 1 cos[n omega_o t + theta_n - tan^-1 (omega_0 n tau)].
Answers: 3
Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Engineering, 04.07.2019 18:20, krojas015
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
Engineering, 04.07.2019 19:10, Calliedevore
The proportional limit is always greater than the yield strength for a material. a)-trune b)- false
Answers: 3
One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be ab...
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Social Studies, 07.01.2020 04:31