Supply voltage: V1=10Vpp sin( 2πf ) Undercut frequency fc1=2137.5 Upper cut frequency fc2=34200 Design the RLC Band-Pass Passive Filter circuit? BW=? R=? C=? L=?

The buck regulator in the next figure has an input voltage Vs = 15 V. The required average output voltage Va = 6.5 V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, O the filter capacitor C, and (d) the critical values of L and C. Q1 +eL iL + + ile io,la 10 Control Dm C Vc vo. V Load

Acos (wit) u pass PR ·Vo Is this a low pass or high pass filter and where is the 3dB down point? 6087)

Explain the significance of anti-aliasing filter and anti-imaging filter. The spectrum of a discrete time signal is shown in the bellow figure. Draw the spectrum of the signal if it is up-sampled by I=3. -2π -π -ποι 2 X(ejw) W π π 2π 2