ripple_fx1
New member
- Joined
- Dec 29, 2008
- Messages
- 2
Hello - searched to no avail....sorry.
I've run out of +5vdc current, and need to activate my non-polarized 100mw relay coils w/-24vdc in a circuit with both of these rails sharing a common ground.
logic goes hi, opens a transistor, which closes the relay.
easy with a bipolar if both Vcc's are +, but I'm not sure what type of discrete transistor to use in this case. National DS3680 would work for an integrated approach, but due to layout, I'd rather not....
Thanks!
I've run out of +5vdc current, and need to activate my non-polarized 100mw relay coils w/-24vdc in a circuit with both of these rails sharing a common ground.
logic goes hi, opens a transistor, which closes the relay.
easy with a bipolar if both Vcc's are +, but I'm not sure what type of discrete transistor to use in this case. National DS3680 would work for an integrated approach, but due to layout, I'd rather not....
Thanks!