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- What is the difference between a diode and rectifier?a half-wave rectifier circuit in the figure below has a transformer inserted between the source and the remainder of the circuit. The source is 240 Vrms at 60 Hz, and the load resistor is 20 ohm. (a) Determine the required transformer turns ratio (Ns/Np) so that the average load current is 12 A. (b) Determine the average current in the primary winding of the transformer.A fully controlled three-phase rectifier bridge circuit supplies a dc load of 300V,60A, from 415V 3-phase ac supply via delta-star transformer. (i) Determine the required thyristor and transformer specifications. (ii) Draw the load and thyristor voltages when firing angle alpha = 60°. (ii) If a commutating diode is placed across the load, determine the FWD specification and then calculate the average load voltage and FWD average current when firing angle alpha = 45°
- For a Full wave rectifier circuit, the AC voltage input to transformer primary is 115V. Transformer secondary voltage is 50V. Load resistor is 25 ohms. Determine Peak and Average DC Component of load voltage. (Assume ideal diodes) a.VDC (peak) = 25.4 V; VDC (average) = 18.5V b.VDC (peak) = 35.4 V; VDC (average) = 22.5V c.VDC (peak) = 38.4 V; VDC (average) = 23.5V d.VDC (peak) = 50 V; VDC (average) = 34.5V1. A single-phase, 120V, 50Hz supply is connected to a controlled half-wave thyristor rectifier and series R-L load consisting of a resistor R of 350 ohms and inductor L of 150mH. The thyristor firing angle is 65 degrees. Assume the diode and thyristor are ideal. i) calculate the dc load voltage VDC and the load dc current IDC. ii) briefly explain why a freewheeling diode is often connected in parallel to an R-L connected load in rectifier circuitsCalculate the rms load current for the single phase uncontrolled half-wave rectifier when the source voltage of 200V at a frequency of 50Hz, and load resistance is 10ohm.
- i) Draw the circuit diagram of the single phase full wave controlled rectifier (RL load) with center-tapped transformer and compare its performance with uncontrolled rectifier operation. (ii) A single phase fully controlled bridge rectifier circuit has DC output voltage 175 V for an AC supply voltage of 210 V rms. Find the firing angle delay of the circuit for the following cases (a) Converter mode (b) Inverter modeA single phase full wave controlled bridge rectifier has a source of 800V rms and frequency of 50 Hz. This source is connected to the rectifier through a transformer of 4:1 voltage ratio. Assuming Lis very high and stable output current of 1.8A (a) Determine the value of the triggering angle to get 75% of the maximum power at the output of this rectifier (b) Find the value of R. (c) Specify the * required voltage rating of thyristorsCreate a schematic diagram for building an AC-DC power supply that uses a complete bridge rectifier, filter capacitors, and regulators and has a selectable output voltage. Keep in mind: When a load is attached, the power supply must be able to deliver at least 500mA of output current.
- Answer in Sentence/Paragraph form. Maximum of 5 sentences each. Lesson: Electronics: HALF-WAVE Rectifier with and without Filter1. What is the function of the filters?2. What is TUF or Transformer Utilization factor? 3. What is the average value of output voltage for half-wave rectifier? 4. What is the peak factor?What is the condition to obtain the maximum efficiency of a Rectifier? Neglecting the value of total resistance Neglecting the value of transformer resistance Neglecting the value of diode resistance Neglecting the value of load resistanceIn the circuit in the figure, an AC voltmeter will be made with full wave rectifier circuit structure. R = 50ohm and diodesResistance values in the direction of transmission are Rd = 100ohm. Inside of the DC ammeter to be used as indicatorthe resistance is very, very small. The AC mark to be measured is Vs = 100 Sinwt Volts.a- Draw the shape of the current passing through the DC Ammeter and calculate its maximum value.b- Find the average value of the current passing through the DC Ammeter.c- Analyze the voltage seen at the ends of diode D1 for both alternans.d- Find the Rms value of the voltage seen at the ends of the diode D1.