Some years back, I came across a "Power Pump", converting 120VAC to 13.8 VDC, in a CB magazine. A DIY project that used a wave bridge and a 120V to 25V transformer - then circuits to make a 'rock solid' voltage. The "pump" also had an ampmeter to show how much power was being used. Look into that IF it suits your purpose / not as mobile but works quite well. The output can be adjusted by reststors & NOT affected by power surges, etc.
thanks for the suggestion. Here my problem is to supply voltage for microcontroller (5v) , driver ic (9v) , and voltage for the kit (12v). so that i need a general power supply to compensate these requirements. Give some suggestions to make it simple and easy...
thanks for the suggestion. Here my problem is to supply voltage for microcontroller (5v) , driver ic (9v) , and voltage for the kit (12v). so that i need a general power supply to compensate these requirements. Give some suggestions to make it simple and easy...
They say that this Chinese battery is "much more better". Their Engrish is horrible.
The poorly translated sales sheet contradicts itself:
1) The pcb limits the discharge current to 7A.
2) The polyswitch limits the discharge current to 2A.
3) The max discharge rate is only 0.6A (that is the max charging rate).
The battery does not have a connector for balancing the cells.
They say that this Chinese battery is "much more better". Their Engrish is horrible.
The poorly translated sales sheet contradicts itself:
1) The pcb limits the discharge current to 7A.
2) The polyswitch limits the discharge current to 2A.
3) The max discharge rate is only 0.6A (that is the max charging rate).
The battery does not have a connector for balancing the cells.
1) the PCB limits the PEAK discharge to 7A
2) the polyswitch limits the CONTINUOUS discharge to 2A
3) they are apparently the same.
So what? these are LiFePo4s not LiPOs. take a look at the spec: a standard safety test is to overcharge at 3A and then hold at 12V for an hour for a SINGLE CELL.
another is to DRIVE A NAIL THROUGH THE FULLY CHARGED BATTERY with no FLAMES
in short these cell in a pack tend to SELF BALANCE and charge as SLAs (for most charge methods, float charge being the exception) SAFELY.