solar tracking device with MPPT using DC/DC converter

[himanshu1990]

hey there seniors....

m preparing a solar tracking device that i have to finish within this week..
i have already completed the major portion...
plz see attachment...

bt i want to make two improvements...

1.)incorporate another two LDR's for season mounting...
2.)incorporate a dc to dc converter (variable duty cycle) for MPPT...

the circuit shows for a single motor and a single LDR ...

but ill be using 2 for E-W mounting and another two for N-S mounting..

all inputs will go into the controller...

but for MPPT ill be needing a DC/DC conveter with variable duty cycle...
something called as the PWM technique etc...
but i cannot get the circuit for this converter and how to implement this....
kindly advice...
thanx....

 

[(*steve*)]

What are the purpose of the left and right sensors? Are they limit switches?

I'm presuming the IC is a PIC or some other uC.

I'm also presuming this is a school project -- am I right?

Does your uC have analogue inputs?

Are you now trying to add a sensor so this device can track the sun?

Why can't you use your uC to do PWM to control the motor speed (I think this is one thing you're after)