2020-11-26 10:54 AM
Hi,
In the evaluation board of SPV1050 (STEVAL-ISV020V1), it is mentionned that the maximum voltage from the PV cell (VMP) is to be equal 9V, but there is no indication about the absolute values that I can be supported without damaging the board.
I'm working with a PV cell having an open circuit voltage of 9.6V with a voltage at the maximum power point of 9.2V.
Would you think under these conditions, the evaluation board will be damaged ?
Thank you for your reply.
Georgina
Solved! Go to Solution.
2020-11-27 04:00 AM
Don't worry, the 9.5V is just 500mV outside the recommended range for which the MPPT is optimized.
/Peter
2020-11-26 11:49 AM
No, it doesn't get damaged.
The databrief of the STEVAL-ISV020V1 mentiones at the first page under features:
In addition you can find in the datasheet of the SPV1050 for IN_HV the absolute max rating of 20V.
The 9V you mentioned was probably that statement from the databrief of the STEVAL-ISV020V1:
The STEVAL-ISV020V1 board is optimized to:
When your question is answered, please close this topic by choosing Select as Best.
/Peter
2020-11-27 03:11 AM
Thank you Peter for your answer.
And yes I meant the part where the STEVAL-IS020V1 board is optimized to:
Since I'm not going to change anything in the board for the first step (resistors or capacitor) so I am not going to extend the features of the charge controller to 18V maximum input.
Shouldn't I just follow the limitation of the board ? if it is mentioned maximum of 9V, I was wondering if 9.5V would damage it.
Thank you so much for your patience and help.
Georgina
2020-11-27 04:00 AM
Don't worry, the 9.5V is just 500mV outside the recommended range for which the MPPT is optimized.
/Peter