Air Supply P1 Controller Movement of E Control Regulated Steam Set Value Positioner Reducing Valve Pressure Valve Stem Pressure P2 0.2-1 bar

! Required information Problem 03.093- The dc output voltage in the half wave rectifier The half-wave rectifier in the figure given below is operating at a frequency of 60 Hz, and the rms value of the transformer output voltage is 19.6 V ± 10%. Assume the value of R to be infinite. ли D₁ CR Problem 03.093.a - The dc output voltage in the half wave rectifier Calculate the nominal value of the dc output voltage Vo if the diode voltage drop is 1 V. (Round the final answer to one decimal place and Include a minus sign if necessary) The nominal value of the dc output voltage Vois 29.5 V AURA T 5 + VO Q Search 6 P & 7 A S Po JA R

Q1. a) An SCR based AC power controller circuit is given in Figure 1. The circuit connects a 240V 50Hz AC source vi to a resistive load with resistance of 100. If the delay angle is a-15°, draw the waveforms of the load voltage Vo, and the voltage across SCR2. Calculate the power supplied to the load. + Vi Va + 2 SCR2 H₁₁ SCR₁ Figure 1 SCR based AC power control circuit Va + 2 io b) Figure 2 is a single phase 2-level voltage source converter (VSC) with a DC voltage Vd-200V. A PWM scheme, by comparing a reference value with a 10kHz triangle waveform, is used to control the switches S₁ and S2. The modulation index of the PWM is m=0.8. With the aid of graphs explain how pulse signals for the switches are generated, sketch the output voltage Vo, determine the duty cycle, and calculate the average output voltage. + Vo + Vo √ ₂ == Figure 2 A single phase VSC

Find VDc if VAN = VBN = VCN= 120 volts... Half-wave Three-phase Rectifier Conduction Waveform Periodic Time (T) A B 180 360 90° 450 540 time 270 VAN VeN VAN VEN Voc Vrc 30 120 150 270 390 510° time Output Voltage Waveform B

the power dissipation can effects the thyristor optimization O true O false In this type the mounting of the SCR is processed between two heat sinks O Stud mounting O Bolt – down mounting O Press – fit mounting O Press – pak mounting

exercise 2

A single-phase controlled bridge rectifier is supplied from 120-V (rms) at 60-Hz utility. What is the rms voltage across the 24-Ohm load resistor if the delay angle is set to 121 degrees?

Determine the Q-point for the circuit. Find maximum peak value of base current for linear operation. Assume Boc = 200. ... week 12-2.jpg Rc 330 Ω RB Vcc 20 V 47 kN V BB 10 V IBQ = Blank 1 uA ICQ = Blank 2 mA %3D VCEQ = Blank 3 V

solve 27

Define and describe the various circuit stages required to design a DC power supply(specifically, explain the required circuit stages of the empty boxes as shown below). Your answershould include names of the circuit stages, a schematic of an appropriate circuit to accomplisheach stage (no need to define values), and a short description of each circuit stage.