baileychic
Advanced Member level 3
I need help in designing 9V to 12V Boost Converter. Currently I am only testing it in Proteus. Later after simulation works fine I will build the circuit. For simulation purpose I am using 2 KHz PWM. For final hardware circuit I will use say 100 KHz or 200 KHz PWM to reduce the Inductor value.
The problem I am having in simulation is that the output voltage keeps increasing and never stops.
My Topology as calculated at daycounter.com
Find the attached Proteus Simulation file. I have not yet added a Microcontroller (PIC) to the circuit because it will slow down the simulation but in the actual hardware circuit there will be PIC18F46K22.
The problem I am having in simulation is that the output voltage keeps increasing and never stops.
My Topology as calculated at daycounter.com
PHP:
Topology: Boost
Inductance based on the specified minimum load current.
Item Value Units
Volts In 9 V
Volts Out 12 V
Load Current 0.5 A
Freq. 2 KHz
Vripple 0.12 V
Duty Cycle 31.746031746032 %
Ipp Inductor 0.15 A
Ipk Inductor 0.575 A
Irms 0.42720018726588 A
L 9100.5291005291 uH
C 661.37566137566 uF
Find the attached Proteus Simulation file. I have not yet added a Microcontroller (PIC) to the circuit because it will slow down the simulation but in the actual hardware circuit there will be PIC18F46K22.