MrDEB
Well-Known Member
can a person build a power supply with several 78xx in parelle with each other to increase current?
one 78xx is only good for 1 amp w/ heat sink but if I put 3 78xx in parelle then we have 3 amp capacity??
of coarse add several capacitors
reason is I have a spectrum analizer schematic that I was/ am playing with using 10 - lm3916 chips. 10 leds per chip and a 2watt 15 ohm resistor connected to 9v+ and all the leds. the 3916's are sinkimg current.
I recall audioguru helped with design but the question was raised about power supply for all the LEDs??
I would post schematic but presently on different computer and can't get hoversnap to post attachement??
maybe just wait until I return to Idaho??
one 78xx is only good for 1 amp w/ heat sink but if I put 3 78xx in parelle then we have 3 amp capacity??
of coarse add several capacitors
reason is I have a spectrum analizer schematic that I was/ am playing with using 10 - lm3916 chips. 10 leds per chip and a 2watt 15 ohm resistor connected to 9v+ and all the leds. the 3916's are sinkimg current.
I recall audioguru helped with design but the question was raised about power supply for all the LEDs??
I would post schematic but presently on different computer and can't get hoversnap to post attachement??
maybe just wait until I return to Idaho??