Hi
I have spent all day trying to find out whether or not my proposed circuit plan will work or not. I have a very basic understanding of some electrical components. I have spent the last few days trying to design a circuit for my planned project involving sequential LEDs using a Picaxe microcontroller, NPN transistors and P-Channel JFETs.
I have used EagleCAD, CircuitMaker, DesignSparkPCB and numerous online programs to try and simulate my circuit but NONE have helped me.
So where should I turn? The schematic of my circuit is attached if anyone would like to help. It's a relatively simple circuit so I can't see why this has been so difficult for me.
For reference: the picaxe output pins are to be programmed such that the base of each transistor receives power at a different interval. Output pins that are attached to a transistor and a JFET are meant to power the base of the LED's transistor and the gate of the previous LED's JFET, effectively opening the previous LED's connection to GND and allowing the current to flow to the next LED (when the transistor allows current to flow from C to E).
Any help would be GREATLY appreciated. Many thanks.
I have spent all day trying to find out whether or not my proposed circuit plan will work or not. I have a very basic understanding of some electrical components. I have spent the last few days trying to design a circuit for my planned project involving sequential LEDs using a Picaxe microcontroller, NPN transistors and P-Channel JFETs.
I have used EagleCAD, CircuitMaker, DesignSparkPCB and numerous online programs to try and simulate my circuit but NONE have helped me.
So where should I turn? The schematic of my circuit is attached if anyone would like to help. It's a relatively simple circuit so I can't see why this has been so difficult for me.
For reference: the picaxe output pins are to be programmed such that the base of each transistor receives power at a different interval. Output pins that are attached to a transistor and a JFET are meant to power the base of the LED's transistor and the gate of the previous LED's JFET, effectively opening the previous LED's connection to GND and allowing the current to flow to the next LED (when the transistor allows current to flow from C to E).
Any help would be GREATLY appreciated. Many thanks.
Attachments
-
59.5 KB Views: 17