desperate urgent help needed!!!
I need to design a boost DC-DC from scratch but is totally lost by the overwhelming information i can find online... i need help in choosing the correct diode specifications, power mosfet the inductors rating, the filtering capacitors at input and output, the correct sensing resistors to use and the calculation for the PWM frequency which is controlled by the PIC16F876.
My specifications are as below; would appreciate if some guys could direct me to the correct calculations cos I need to finish my project in 3 months time...
Input voltage: 18V
Input current: 1A
Output voltage: 50V
Efficiency: 90-95%
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I need to design a boost DC-DC from scratch but is totally lost by the overwhelming information i can find online... i need help in choosing the correct diode specifications, power mosfet the inductors rating, the filtering capacitors at input and output, the correct sensing resistors to use and the calculation for the PWM frequency which is controlled by the PIC16F876.
My specifications are as below; would appreciate if some guys could direct me to the correct calculations cos I need to finish my project in 3 months time...
Input voltage: 18V
Input current: 1A
Output voltage: 50V
Efficiency: 90-95%