Hello,
Please see my comments below.
? ? said: Could you please confirm if there are any issues with my hardware design?
-The REGN pin requires a 4.7uF capacitor to GND
I do not see any clear issues with the rest of your hardware design beyond…
Part Number: TIDA-01556
Recently I’ve been trying to develop a solar battery charging system with MPPT for a camera project, but I don’t have a PV panel for now. So I want to use the model circuit of PV panel to verify the MPPT algorithm in TIDA-01556…
Part Number: TIDA-01556 Hi
I am learning the TIDA-01556's video and reference-design. And I have a question about how to visualize your outdoor test result like TI did in PPT page 19 which has curve for tested input current, input power and charging…
Part Number: TIDA-01556 Other Parts Discussed in Thread: MSP-EXP430FR4133 , BQ25895 Tool/software: Code Composer Studio We purchased the MSP-EXP430FR4133 and connected as instructed in the guide to our BQ25895 demo board, but still haven't got it working…
Hi TI-CSC,
Unfortunately, those are the only 2 options Ti has at the moment. You can write host software to use any of our chargers' VINDPM feedback loop in a sweep similar to BQ25750. An example is at https://www.ti.com/tool/TIDA-01556 . If you choose…
HI Jyrki,
The BQ25756 family has a more robust MPP algorithm but it still has intervals in the minutes range.
https://www.ti.com/lit/ds/symlink/bq25756.pdf
Fast perturb and observe requires a processor which none of TI's chargers have. Host processor…
HI Kip,
I apologize for the confusion. The most accurate perturb and disturb algorithm's require a microprocessor with memory and software. Battery chargers have a state machine, not a processor, and no memory (other than I2C registers). Most battery…
Hi Yeongjun,
BQ25792 does not have fractional open circuit MPPT feature but BQ25798 does. If you want to write your own algorithm, I recommend taking a look at https://www.ti.com/tool/TIDA-01556 . The same concepts can be used for the BQ25792.
Regards…
Hi Yeongjun,
You can write software to implement fractional open circuit MPP. You could use similar logic as was used to implement this with BQ25895 at the link below:
https://www.ti.com/tool/TIDA-01556
Alternatively, you can switch to pin2pin and…
HI Jasper,
The closest reference design we have is using a buck based battery charger and host software to implement MPPT at https://www.ti.com/tool/TIDA-01556 . Hope this helps.
Regards,
Jeff
