I re-read the OP first post two times and can't seem to locate anywhere it mentions 1A at 50V?
hi,
it was my lecturer's instruction to output a higher current, but pardon me for being dumb... but i have a few questions hoping for some enlightment...
1. Is it impossible for me to boost the output current if the input current is 1A? maybe abt 5A?
2. The other requirement is to use a battery at the output to store the energy from the boost-ed supply. but I have not gone into tat yet. <-- any suggestions on the type of battery to use?
3. I'm using equations from
Boost Switching Converter Design Equations to obtain the inductance and the Irms, Inductor value and the capacitor values...
i input my requirements for Vf for diode to be 0.95V and transistor voltage drop be 2.6V (using power mos BUZ11) and got the following results. the Inductor Current Ripple and Output Voltage Ripple were set to 5%.
Volts In 18 V
Volts Out 50 V
Load Current 1 A
Freq. 300 KHz
Vripple 2.5 V
Duty Cycle 68.148914167528 %
Ipp Inductor 2 A
Ipk Inductor 2 A
Irms 0.577 A
L 17.49 uH
C 0.908 uF
4. Btw, Are there any parameters I need to calculate? before i get my components?
5. Attached is a reference circuit i've found, prob using it to design for my requirements. I'm not reali sure abt the following
- the current amp at the input, wat is it used for?
- is the voltage divider at the output for error feedback?
Thanks a million...