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- Design of a DC-DC Converter. The Circuit Below shows a basic Buck-Boost Converter with a highly inductive Load. With a Deliberate mistake in the configuration of the Circuit Connection. The Value of L1 is 22mH, C1 is 10uF, R1 is 220 and L2 is 10mH. The circuit operates with a switching frequency of 20KHZ. The Duty cycle of the Clock signal V2 is given by the function below: ( 17 ) х0.2 Duty Cycle, k = 0. 55 + 100 Your Unique Duty Cycle = %3D Buck-Boost Converter Q1 IRG4BC10U D1 R1 222 1N4009 C1 LV1 12V L1 22mH 10µF L2 10mH a) Find the mistake in the configuration of the circuit and correct the connection error.A step-up chopper has input voltage of 220 V and output voltage of 660 V. If the conducting time of the IGBT based chopper is 100 micro- sec, then duty cycle will be a. -0.66 b. 0.7 c. 1.66 d. 0.66Q2) A 3-phase, half-wave thyristor converter is connected through a voltage source 150 V as input voltage and used to supply resistive load of 10 N. Determine rsm voltage, rms current, ripple factor and dissipated power in the resistor R. If a = 45° and f = 50 Hz.
- A chopper circuit drives an inductive load from 390 DC supply. Given the load resistance as 8 Q, the average load current as 23 A and operating frequency is 480 Hz. When the chopper is ON, 7 V is dropped. Calculate (a) conduction period (in milliseconds) (b) blocking period of the chopper (in milliseconds) (c) duty cycle of the chopper (d) draw the ON and OFF time period waveform (ii) Draw the circuit diagram of the single phase bridge rectifier which is used in two quadrant operation (RL load) and explain its operation.A synchronous generator with a synchronous reactance of 1.15 p.u. is connected to an infinite bus whose voltage is one p.u. through an equivalent reactance of 0.15 p.u. The maximum permissible active power output is 1.2 p.u.A. Compute the excitation voltage E.B. The power output is gradually reduced to 0.7 p.u. with fixed field excitation. Find the new current and power angle δ.A load consists of XL=70 and XC=150 are connected in parallel across 120 Volt supply.The reactive power of the circuit is.......
- A step down de chopper is connected to an R5 2 and L-10 mH. The de supply voltage is 100 V. The chopper is switching at a frequency of 1 kHz with a duty cycle of 50%. Determine the load current, lo and the peak to peak ripple current as an absolute value and as percentage of de value.(i) A chopper circuit drives an inductive load from 360 DC supply. Given the load resistance as 8 2, the average load current as 20 A and operating frequency is 480 Hz. When the chopper is ON, 7 V is dropped. Calculate (a) conduction period (in milliseconds) (b) blocking period of the chopper (in milliseconds) (c) duty cycle of the chopper (d) draw the ON and OFF time period waveform (ii) Draw the circuit diagram of the single phase bridge rectifier which is used in two quadrant operation (RL load) and explain its operation. · Duty Cycle ON period OFF period) A chopper circuit drives an inductive load from 120 DC supply. Given the load resistance as 6 0, the average load current as 52.5 A and operating frequency is 450 Hz. When the chopper is ON, 5 V is dropped. Calculate of (a) conduction period (in milliseconds) (b) blocking period of the chopper (in milliseconds) (1. (c) duty cycle of the chopper (d) draw the ON and OFF time period waveform tic (ii) Draw the circuit diagram of the single phase bridge rectifier which is used in four quadrant operation (RL load) and explain its operation. ( Duty Cycle ON period OFF period
- Draw dc load line :Derive the average and rms values of output voltages and currents for three phase semi converter. Power ElectronicsA single phase full wave AC voltage controller has a resistive load of 5 ohms and an input voltage of Vs = 240 V (RMS), 50 Hz. The delay angles of both thyristors are set to 45 degrees. The maximum RMS and average current ratings of the thyristor are equal to: Select one: O a. 33.94A and 21.6A O b. None of these O c. 24A and 10.8A O d. 48A and 26.09A Clear my choice