Determine the peak-to-peak ripple current

An Rl load as shown in figure below is controlled by a chopper. If load resistance R=0.25 ohms, inductance L=20 mH, supply voltage Vs=600V, battery voltage E=150V, and chopping frequency F=250 Hz, determine the peak-to-peak ripple current (delta I). See Attached File.

Calculate the delay angle (alpha)

The three-phase half-wave converter in figure below is operated from a three-phase wye-connected 220V, 60 Hz supply and the load resistance is R=10 ohms. If the average output voltage is 25% of the maximum possible average output voltage, calculate the delay angle (alpha). See Attached File.

[16]Power electronics. The Dc converter shown below has a resistive load, R = 20 Ohms and input voltage Vs=220V.

Power electronics. The Dc converter shown below has a resistive load, R = 20 Ohms and input voltage Vs=220V. Please see attached tiff file. ===================================== OTA: please take only if you can show step by step problem solving. thank you.

[17.18] Power electronics

[Power electronics] The measured values of a diode at a temperature of 25 Degrees Celsius are: Vd=1V at Id=50A, Vd=1.5V at Id=600A. Determine (i) the emission coefficient n, and (ii) the leakage current. ============================================== Answers: a. (a) n=6, (b) Is=0.2A b. (i) n=5, (ii) Is=1A c. (i) n=8, (ii) Is=0.347A d. (i) n=8, (ii) Is=1A ################################################## The reverse recovery time of a diode is trr=5 usec, and the rate of fall of the diode current is di/dt = 80A/usec. If the softness factor is SF = 0.5, determine (i) the storage charge Qrr, and the peak reverse current Irr: ================================================ a. (i) Qr... click for more

[9.11] Power electronics

[Power electronics] A six-phrase star rectifier has a purely resistive load of R=10 Ohms. The peak supply voltage Vm=170 V, and the supply frequency f=60 Hz. Determine the average output voltage of the rectifier if the source inductance is negligible. ============================================== Answers: a. Vdc = 150.21 V b. Vdc = 162.34 V c. Vdc = 180.43 V d. Vdc = 159.42 V =============================================== Answers: a. Vd=120.13 V b. Vd=113.32 V c. Vd=150.42 V d. Vd= 80.41 V ============================================== OTA: please take this only if you can show step by step problem solving . thank you.