How are the ions arranged in an AC vs. a DC plasma?
How are the ions arranged in an AC vs. a DC plasma?
Homework Answers
Answer : In a DC discharge the sheath height is constant, and so all the ions strike the electrode with the maximum sheath voltage. But in an AC plasma, the sheath is oscillating, and at low frequencies, therefore, the sheath may decrease in width to its minimum value for a significant portion of the time.
AC VS DC ?
AC VS DC ?
For sputtering-cleaning and sputter-depositing a metal, would you use an AC or DC plasma? Explain your...
For sputtering-cleaning and sputter-depositing a metal, would you use an AC or DC plasma? Explain your answer.
Single phase square to supply an ac load from dc power supply with source voltage VS...
Single phase square to supply an ac load from dc power supply with source voltage VS = 20 volts wave full bridge inverter will be designed. The load resistance is R = 24 ohms and L = 240 milliHenry. Exit the frequency of its voltage will be 25 Hz. With the minimum value of the load current at t = 12ms and t = 30ms Calculate the values.
Explain how the DC side power is processed into AC power. Use necessary equations in explaining...
Explain how the DC side power is processed into AC power. Use necessary equations in explaining your answer pay attention to the unfolding circuit and the DC link capacitor
QUESTION 1 While connecting a DC system to the AC system using an inverter, the DC...
QUESTION 1 While connecting a DC system to the AC system using an inverter, the DC voltage is lower than the voltage at the AC system O True O False
Question 2 Why use dc motors when ac power is delivered on the line? a. dc...
Question 2 Why use dc motors when ac power is delivered on the line? a. dc motors are grandfathered in from a time when dc power was delivered to the customer. b. dc mototrs maintain a higher efficiency while having a wide torque-speed charateristic. c. ac motors are more complicated and challenging to make than dc motors. d. None of the above.
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors....
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors. b) Calculate the overall voltage gain Avs o/vs c) Find s(max) which produces maximum undistorted output voltage. 20V Q1 Q2 hFE=htp= 100 100k2 Rc 1k R VBE 0.6V R2>100k Q2 R. Cc Q1 Co 1kn o Vo R1 10k RE2 1k RL1K2 RE1 1kn CE Figure 13.6: An AC-coupled two-stage BJT amplifier for Example 13.4.
Example 13.4: For the figure below, a) Draw AC...
In an AC to DC rectifier circuit, the output DC signal of the rectified wave was...
In an AC to DC rectifier circuit, the output DC signal of the rectified wave was measured to be VDC= (9.1±0.6)V and its ripple voltage was measured to be Vripple=(0.14±0.03) mV. What is the uncertainty on the quality factor of the rectifier? (Report your final value to 2 sig figs)
Why DC mean voltage is zero for AC signals
Why DC mean voltage is zero for AC signals
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system ...
part g
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system is including a transformer, a rectifier and a capacitor input filter. The AC input voltage is 110 Vrms at 60 Hz. (a) Draw the full wave bridge rectifier circuit with transformer which steps down voltage to safer and lower levels that are more suitable for use with diodes (b) Show how the capacitor input filter connects to the rectifier output in the...
QUESTION 1 While connecting a DC system to the AC system using an inverter, the DC voltage is lower than the voltage at the AC system O True O False
Question 2 Why use dc motors when ac power is delivered on the line? a. dc motors are grandfathered in from a time when dc power was delivered to the customer. b. dc mototrs maintain a higher efficiency while having a wide torque-speed charateristic. c. ac motors are more complicated and challenging to make than dc motors. d. None of the above.
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors. b) Calculate the overall voltage gain Avs o/vs c) Find s(max) which produces maximum undistorted output voltage. 20V Q1 Q2 hFE=htp= 100 100k2 Rc 1k R VBE 0.6V R2>100k Q2 R. Cc Q1 Co 1kn o Vo R1 10k RE2 1k RL1K2 RE1 1kn CE Figure 13.6: An AC-coupled two-stage BJT amplifier for Example 13.4.
Example 13.4: For the figure below, a) Draw AC...
part g
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system is including a transformer, a rectifier and a capacitor input filter. The AC input voltage is 110 Vrms at 60 Hz. (a) Draw the full wave bridge rectifier circuit with transformer which steps down voltage to safer and lower levels that are more suitable for use with diodes (b) Show how the capacitor input filter connects to the rectifier output in the...
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