premkumar9
Member
Hi,
I have developed an equipment whose current consumption is about 400 mA. Now it is required to add a battery back up for 4Hrs backup. Can I just connect a 12 V battery after my bridge rectifier (parallel to the present rectified DC). 5 voltage regulator is already there after this.
If I connect as above, will it cause damage to my transformer and 1N 4007 diodes (presently using 500 mA transformer) as the discharged battery may take more current? in that case is there any simple method to limit the charging current?
Somebody may please help.
I have developed an equipment whose current consumption is about 400 mA. Now it is required to add a battery back up for 4Hrs backup. Can I just connect a 12 V battery after my bridge rectifier (parallel to the present rectified DC). 5 voltage regulator is already there after this.
If I connect as above, will it cause damage to my transformer and 1N 4007 diodes (presently using 500 mA transformer) as the discharged battery may take more current? in that case is there any simple method to limit the charging current?
Somebody may please help.