Awesome way cost effective. Amazing how the pricing has gone down so much for the RC hobbies and wishing more get into electronics in healthy, safe and generally well being ways.
Thanks for the video! At 5:34 it looks like the FB on the XL4016 is connected to a PWM output on the Arduino. Is this correct? The data sheet says that the "Feedback Pin (FB). Through an external resistor divider network, FB senses the output voltage and regulates it".
That is correct. The resistor network is removed and the FB pin is connected to the Arduino PWM pin. There is also a capacitor connected on this pin, this capacitor makes from the PWM frequency and voltage. On this way we could regulate the XL4016 with the Arduino (Mppt algorithm).
Would you be willing to share the arduino code? I have a few questions about how you've achieved it. Reference voltage is 1.25v, which would correspond to a value of 64 for analogWrite. How far above this value to you set to decrease or increase pulse width in the buck converter?
I have uploaded a new video with the code. I have also calculated the 64 value, but during testing we found out that there is a different value. This is because the PWM value is not linear with the voltage. I have not yet measured the voltage. During testing we came out on a 146.
Did you consider powering the motor directly from the solar panels and not having a battery? No battery and no DCDC would be a big weight saving. I tested this using a trust stand ruclips.net/video/bTIRTGlTLms/видео.html As the throttle is increased the thrust increases until you reach a certain point where the power drops off (as you might expect). Inverting the aircraft could be problematic. Maybe a small battery only for the servos and radios?
Awesome way cost effective. Amazing how the pricing has gone down so much for the RC hobbies and wishing more get into electronics in healthy, safe and generally well being ways.
Thanks for the video! At 5:34 it looks like the FB on the XL4016 is connected to a PWM output on the Arduino. Is this correct? The data sheet says that the "Feedback Pin (FB). Through an external resistor divider network, FB senses the output voltage and regulates it".
That is correct. The resistor network is removed and the FB pin is connected to the Arduino PWM pin. There is also a capacitor connected on this pin, this capacitor makes from the PWM frequency and voltage. On this way we could regulate the XL4016 with the Arduino (Mppt algorithm).
@@fpvdrone3159
Какая частота ШИМ?
I do not hear your voice, but music. how to understand how it works ?
your music is TOO LOUD and your voice too soft
Hi. I have a thesis project. I need to do Mppt buck converter. Have you ever done Mppt buck converter? Can U help me about this issue.Thank U.
Do we need to remove / disolder the potentiometer, 1k resistor and the capacitor from the circuit?
+1
Would you be willing to share the arduino code? I have a few questions about how you've achieved it. Reference voltage is 1.25v, which would correspond to a value of 64 for analogWrite. How far above this value to you set to decrease or increase pulse width in the buck converter?
I have uploaded a new video with the code. I have also calculated the 64 value, but during testing we found out that there is a different value. This is because the PWM value is not linear with the voltage. I have not yet measured the voltage. During testing we came out on a 146.
amazing
Amazing good job em
Что делаете вывод D6?
Можно увидеть код программы?
Did you consider powering the motor directly from the solar panels and not having a battery? No battery and no DCDC would be a big weight saving. I tested this using a trust stand ruclips.net/video/bTIRTGlTLms/видео.html As the throttle is increased the thrust increases until you reach a certain point where the power drops off (as you might expect). Inverting the aircraft could be problematic. Maybe a small battery only for the servos and radios?
XL4016 datasheet is here: www.xlsemi.com/datasheet/XL4016%20datasheet.pdf
This is the link to the resistors www.ebay.co.uk/itm/64-values-1280pcs-1-ohm-10M-ohm-1-4W-Metal-Film-Resistors-Assortment-Kit/261374861457
music louder next time
impossible to hear anything
Music is annoying AF