So we are back with an update to the NiMh battery charger. In this iteration, we are able to charge a single NiMh AA battery(more batteries would only require a different battery holder) in constant current mode. Charging is stopped when when the INA219 current sensor module detects a drop in the current (negative delta V).
Once We have this running reliably, the next step is to take what we learned here and apply it to a LiPo battery.
All of my sketches are available here: https://www.dropbox.com/sh/m6c40pu99fqxb5b/AAD1Gzn6F4Hy8v9RrTZSxQyHa?dl=0
Links to all of the modules used here:
INA219 Current Sensor:https://www.amazon.com/gp/product/B01ICN5OAM/ref=oh_aui_detailpage_o06_s03?ie=UTF8&psc=1
Solar Battery Charger MPPT base using Arduino UNO
2. Simulation with Proteus
3. PCB with Proteus
4. Video for help!
5. Gerber Files
I wanted to be able to charge 7 batteries using one trickle charger without changing anything on the trickel charger, so I used an Arduino Uno unit with 9 relays and a voltage regulator to create a multi battery charger unit
hello friends today I am going to show you how to make a portable charger for Arduino. You can use any battery voltage from 7V to 12. Make sure to use a suitable charger to charge it. You can also use it as a power bank. LIKE,SHARE AND SUBSCRIBE
MUSIC PROVIDED BY NCS:ALAN WALKER-FADE [NCS RELEASE]
QC3.0 is the new standard for charger used by many companies, and therefore we get lots of compatible power banks and wall chargers. They deliver up to 12 volts and later up to 20 volts. And the voltage can be adjusted. Sounds like ideal for a Lab or a Mobile power supply. But unfortunately, the standard is proprietary. So let’s hack it using an Arduino Mini or an ATtiny.
The old USB chargers were able to deliver 5 volts and around 2-amperes max. The new QC chargers provide up to 12 volts and 2A peak. And you can change the voltage on the fly. Sounds interesting and dangerous! I do not want to charge my trusted old iPhone with 12 volts. I assume this would not be accepted as a warranty case by Apple…
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This charger circuit charger the battery in two state i.e. Bulk State and Float state.
For Circuit Description and Software Code please visit the link
Making Video of Adjustable Power Supply circuit