deiana
Newbie level 2
battery safety circuit
I have a problem to do my project. I'm not sure which PIC that I should use to design the safety circuit. So, I need some advice from u all about this matter.
Below are the discription of the project:
1. Controller IC monitors each cell (or parallel cells) voltage & prevents the cells to overcharge/overdischarge controlling accordingly the cutoff switches. Voltage across the switches is monitors to prevent over current.
2. Control switches that usually comprises FET structures that cutoff the charge/discharge depending on the control signals of IC.
3. Temperature fuse that cutoff the current if the control switches experience abnormal heating.
4. Thermistor (PTC) that measure the battery temperature inside the pack. It's terminals connected to the charger, sense the temperature of the pack and control the charge current until the battery it's full charged.
I have a problem to do my project. I'm not sure which PIC that I should use to design the safety circuit. So, I need some advice from u all about this matter.
Below are the discription of the project:
1. Controller IC monitors each cell (or parallel cells) voltage & prevents the cells to overcharge/overdischarge controlling accordingly the cutoff switches. Voltage across the switches is monitors to prevent over current.
2. Control switches that usually comprises FET structures that cutoff the charge/discharge depending on the control signals of IC.
3. Temperature fuse that cutoff the current if the control switches experience abnormal heating.
4. Thermistor (PTC) that measure the battery temperature inside the pack. It's terminals connected to the charger, sense the temperature of the pack and control the charge current until the battery it's full charged.
