Hello,
I am trying to do a simple modification in a standard circuit by adding dual-power supply with automatic selection ( Since I dont want to manually setup the jumper wires for power port selection.) JFETs are my choice for making this alteration.
The purpose:
The device will take the first power source. If both the power sources are connected accidentally, the device will draw current ONLY from the first connected source & the second source will be entirely blocked.
Suggestions & Help:
I have attached the circuit & datasheet of the P-Channel JFET (2N5460) with this post. Any suggestions regarding modifications & alteration of the circuit will be appreciated.
2N5460 Datasheet - http://www.eng.yale.edu/ee-labs/morse/compo/datasheets/2n5460-d.pdf
Thanks in Advance
I am trying to do a simple modification in a standard circuit by adding dual-power supply with automatic selection ( Since I dont want to manually setup the jumper wires for power port selection.) JFETs are my choice for making this alteration.
The purpose:
The device will take the first power source. If both the power sources are connected accidentally, the device will draw current ONLY from the first connected source & the second source will be entirely blocked.
Suggestions & Help:
I have attached the circuit & datasheet of the P-Channel JFET (2N5460) with this post. Any suggestions regarding modifications & alteration of the circuit will be appreciated.
2N5460 Datasheet - http://www.eng.yale.edu/ee-labs/morse/compo/datasheets/2n5460-d.pdf
Thanks in Advance
Attachments
-
180.1 KB Views: 32
Last edited: