Hey, guys please help here. It's urgent, Me and my friends are doing this project and the problem that we are facing is:
1- We needed a constant current source and sink that we have made (as shown in the figure) but now the current output from both of these is few mA like below 5-6mA but we need current outputs of almost Ampere or at least greater than 500mA so that the battery would charge and discharge quickly.
We have tried with LM317 but it was not working with Arduino(microcontroller).
So, please guys can u tell me what to do. What changes should I do to get high output current values?
I have to submit the project o 20 April 2018.
NOTE: We have removed that Voltage sensor and attached the 2.2Kohm resistance directly to Ao pin of Arduino.
The battery is of 3.7 V so we are providing a threshold of 3.2V above which charging would(that is constant current source circuit would start ) and below that discharging would start with a current sink.
1- We needed a constant current source and sink that we have made (as shown in the figure) but now the current output from both of these is few mA like below 5-6mA but we need current outputs of almost Ampere or at least greater than 500mA so that the battery would charge and discharge quickly.
We have tried with LM317 but it was not working with Arduino(microcontroller).
So, please guys can u tell me what to do. What changes should I do to get high output current values?
I have to submit the project o 20 April 2018.
NOTE: We have removed that Voltage sensor and attached the 2.2Kohm resistance directly to Ao pin of Arduino.
The battery is of 3.7 V so we are providing a threshold of 3.2V above which charging would(that is constant current source circuit would start ) and below that discharging would start with a current sink.
Attachments
-
100 KB Views: 15
Last edited: