D1 T1 c1 RL 15 3. The flyback converter shown, operates at 250 kHz. The 1 duty ratio ofswitch closed is D = 0.6. Determine: (a) Output voltage. (b) Average, minimum and maximum current in L1 (the mag...
VI 100 L 100 100 1000uF 3 2. The flyback converter shown, operates at 10 kHz. The duty ratio of switch closed is D -0.2. The Primary to secondary ratio is 5 to 1 (N /N, -1/5, the load resistance is 15 . Determine: (a) Output voltage. (b) Average, minimum and maximum current in LI - Lm (the magnetizing inductance). (c) The output voltage ripple.
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...