Values ​​of Vg = 125 V, V0 = 75 V, f = 15 kHz, R = 10  are given for the buck converter. The switch, diode, coil and capacitor used are considered ideal. According to this: a) In order that the peak-to-peak value of the coil current ripple does not exceed 5% of the rated load current value the inductance (L) of the coil to be used and the average output voltage of the output voltage ripple. Calculate the capacity (C) of the capacitor that should be used to be 1% of the value.  b) This circuit must be used for continuous transmission (CCM) operation at 50% load. Find the minimum inductance value.

3. help please

In a three phase (50Hz) full converter, the ripple frequency in output voltage?

A load consists of  XL=70  and XC=150  are connected in parallel across 120 Volt supply.The reactive power of the circuit is.......

For the buck-boost converter, determine the duty cycle, the switching frequency, and the inductor current ripple. The output voltage ripple is about 1%. vs 10 V, mH, C 0.5 micro.F, Vout=-20 V, R-IO Q

EX2: (Buck dc-dc converter. Evaluation of the output voltage ripple) A buck converter has the following specifications: Vin= dc input voltage =50 V, D = duty cycle=D0.4, L=400 µH, C=100 µF f,= switching frequency = 20 kHz, R=20 2 Assuming that the converter is ideal, calculate: a) The output voltage. b) The maximum and minimum inductor current values. c) The output voltage ripple.

Q2) 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 2. Determine rsm voltage, rms current, ripple factor and dissipated power in the resistor R. If a = 45° and f = 50 Hz. %3D

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.

The three-phase full-wave converter shown below is used to rectify the three phase (Y-connection) source signals. The six Thyristor are triggered in the sequence shown. Sketch for firing angle (a=90°) the output voltage (Vo), the phase current, the current for any two Thyristor in any one leg, and the load current (Ia). Then calculate (a) Thyristor average and r.m.s current. (b) Supply average and r.m.s current. (c) The normalized average output voltage. (d) The maximum output voltage. [Vdc = [1 - cos(60+ a)] Vml T If the line-to-neutral voltages are defined as 11 T, T T STA T. Load I sin od sin() ex-> Solve the question sin(with your own hands the corresponding line-to-line voltages are √31% sin (out + ) ---√(4)

An RL load (R=0.2 Ohms, L=10 mH) is controlled by a converter. The supply voltage Vs is 600V and the chopper frequency is 200 Hz. The maximum peak to peak ripple current is equal to: Select one: a. 30A b. 55A c. 90A d. 75A