DUAL power supply (JFET)

Preferable choice for dual supply in low voltage electronic circuits

  • JFET

    Votes: 0 0.0%
  • Relay

    Votes: 0 0.0%
  • Zener+Transistor

    Votes: 0 0.0%
  • Comparators

    Votes: 0 0.0%

  • Total voters
    0

Thread Starter

nightcrawler218

Joined Dec 24, 2012
26
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
 

Attachments

Last edited:
Top