Hello. I am new to this forum and need some help.
I am trying to create a simple Linear Regulator that will convert 12 VDC(13.8 VDC from car) to about 8 VDC.
I am attaching circuit schematic below.
I am using an LM1084 to do the regulating and will be using a heatsink to dissipate.
Here is the issue. Current draw. The lights I am trying to dimly light are normally run at 12 volt 27 watts (2.5 A). When I convert to 8 volts, this increases to 4 Amps. I have to drive 2 of them so I need current to be min 8 amps, preferably 15 amps to be safe. (I hope my math is correct in all this above)
I am somewhat new to circuits so I don't know how to accomplish this. Can someone please give me some guidance. Have thought about using transistor to boost amperage but not sure where to start.
Thanks for any help on this.
Franklin
I am trying to create a simple Linear Regulator that will convert 12 VDC(13.8 VDC from car) to about 8 VDC.
I am attaching circuit schematic below.
I am using an LM1084 to do the regulating and will be using a heatsink to dissipate.
Here is the issue. Current draw. The lights I am trying to dimly light are normally run at 12 volt 27 watts (2.5 A). When I convert to 8 volts, this increases to 4 Amps. I have to drive 2 of them so I need current to be min 8 amps, preferably 15 amps to be safe. (I hope my math is correct in all this above)
I am somewhat new to circuits so I don't know how to accomplish this. Can someone please give me some guidance. Have thought about using transistor to boost amperage but not sure where to start.
Thanks for any help on this.
Franklin