how does linear mode power supply work
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Q: Using casioFX-991EX
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A: Step 1: Firstly we will calculate the thevenin circuit equivalent around the load ZL:Determination…
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Q: Calculate.
A: Step 1:*Formula picked up from Sedra Smith 6th ed Sec 4.5.4
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how does linear mode power supply work
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- 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 VSCA 120 – volt AC voltage is applied across a 20 – ohm resistive load. Find values of current, max voltage, peak–to–peak voltage, average voltage, maximum current, peak–to–peak current, average current, and power. draw the circuit diagramHalf wave rectifier.
- What is the advantage of alternating current over direct current?A three-phase half wave-controlled rectifier circuit is shown in the figure. It is operated from 3- star connected, supply transformer with a line to line ac supply voltage of 440 volts rms at 50 Hz. The thyristor are triggered at a delay angle of a = 30°. Assume continuous ripple free current. The average output current (in A) is Ro Yo Во No T₂ + Voc ∙Iac LoadExplain in detail DC and AC current.
- What are buck and boost converters and how are they used in power electronics?i need the answer quicklyQuestion (2) A controlled half-wave rectifier has a 240 V rms 60Hz ac source, The load a is R=30 Ohm resistor (a) Determine the delay angle such that the average load current is 2.5A (b) Determine the power absorbed by the load (c) Determine the power factor.
- For the full wave rectifier circuit shown in Figure 1, calculate: 1) The maximum current through the load. 2) The average current through the load. 3) The average voltage across the load. 4) The rms value of the current. 5) The rectification efficiency. Vms = 280V Vin RL= 12ks2 Vrms = 280V Figure 1Q5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across Ri, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diode have? (Use constant voltage drop model for the Silicon diode) IN4001 Ry OV 10k) D IN4001A 3-phase, half-wave thyristor rectifier with an inductive load is supplied by a three-phase source of phase voltage: van= 120sinwt V. The thyristor firing angle is 40 degrees. The inversion angle of the thyristor in degrees equals: