Question 2 A transistor is used as a switch and the waveforms are shown in Figure 2. The parameters are Vcc = 225 V, VBE(sat) = 3 V, IB = 8 A, VCE(sat) = 2 V, Ics = 90 A, td = 0.5 µs, tr = 1 µs, ts = 3 µs, tƒ = 2 μs, and f 10 kHz. The duty cycle is k 50%. The collector- emitter leakage current is ICEO = 2 mA. Determine the power loss due to the collector current: = = = (a) during turn-on ton = td + tr VCE Vcc (b) during conduction period tn V CE(sat) 0 toff" ton Ics 0.9 Ics (c) during turn-off toff = ts + tf (d) during off-time tot (e) the total average power losses PT ICEO 0 IBS 0 Figure 2 V BE(sat) 0 主 * td tr In Is If to iB VBE T= 1/fs

Question 1: The beta (B) of the bipolar transistor shown in Figure 1 varies from 12 to 60. The load resistance is Rc = 5. The dc supply voltage is VCC = 40 V and the input voltage to the base circuit is VB = 5 V. If VCE(sat) = 1.2 V, VBE(sat) = 1.6 V, and RB = 0.8 2, calculate: (a) the overdrive factor ODF. (b) the forced ẞ (c) the power loss in the transistor PT. IB VB RB + V BE RC Vcc' Ic + IE Figure 1 VCE

I need help in creating a matlab code to find the currents

I need help fixing this MATLAB code: as I try to get it working there were some problems:

I need help in construct a matlab code to find the voltage of VR1 to VR4, the currents, and the watts based on  that circuit.

Q2: Using D flip-flops, design a synchronous counter. The counter counts in the sequence 1,3,5,7, 1,7,5,3,1,3,5,7,.... when its enable input x is equal to 1; otherwise, the counter count 0.

From the collector characteristic curves and the dc load line given below, determine the following: (a) Maximum collector current for linear operation (b) Base current at the maximum collector current (c) VCE at maximum collector current. lc (mA) 600 ΜΑ 60- 500 με 50- 400 με 40- 300 μ Α 30- Q-point 200 ΜΑ 20- 10- 100 μ Α 0 VCE (V) 1 2 3 4 5 6 7 8 9 10 [6 Pa

Procedure:- 1- Connect the cct. shown in fig.(2). a ADDS DS Fig.(2) 2-For resistive load, measure le output voltage by using oscilloscope ;then sketch this wave. 3- Measure the average values ::f VL and IL: 4- Repeat steps 2 & 3 but for RL load. Report:- 1- Calculate the D.C. output vcl age theoretically and compare it with the test value. 2- Calculate the harmonic cont :nts of the load voltage, and explain how filter components may be selected. 3- Compare between the three-phase half & full-wave uncontrolled bridge rectifier. 4- Draw the waveform for the c:t. shown in fig.(2) but after replaced Di and D3 by thyristors with a 30° and a2 = 90° 5- Draw the waveform for the cct. shown in fig.(2) but after replace the 6-diodes by 6- thyristor. 6- Discuss your results. Please solve No. 4 and 5

Please I want solution by handwritten