hamfiles New Member Jun 22, 2003 #1 I'm building a dual regulator and I want to beef up the current capability using pass transistors. I have a good schematic from rason.org that shows how the transisrors are connected to the positive regulator chip. But I can't find a schematic for how to connect the pass transistors for the negative regulator side. I'm still unable to post diagrams here, they show up as a red x, but here is the regulator I want to beef up: http://www.geocities.com/hamfiles/DualPowerSupply.htm and here is a ciruit for the positive side: http://www.geocities.com/hamfiles/passtrans.htm Could I simply switch the PNP and NPN transistors, and connect it that way, to the negative regulator, or would I connect it an entirely different way? Thanks for any responses. :?:
I'm building a dual regulator and I want to beef up the current capability using pass transistors. I have a good schematic from rason.org that shows how the transisrors are connected to the positive regulator chip. But I can't find a schematic for how to connect the pass transistors for the negative regulator side. I'm still unable to post diagrams here, they show up as a red x, but here is the regulator I want to beef up: http://www.geocities.com/hamfiles/DualPowerSupply.htm and here is a ciruit for the positive side: http://www.geocities.com/hamfiles/passtrans.htm Could I simply switch the PNP and NPN transistors, and connect it that way, to the negative regulator, or would I connect it an entirely different way? Thanks for any responses. :?:
kinjalgp Active Member Jun 22, 2003 #2 Download this datasheet **broken link removed** It has schematic showing connection of series pass transistor for negative regulators on page number 9 & 10.
Download this datasheet **broken link removed** It has schematic showing connection of series pass transistor for negative regulators on page number 9 & 10.