How to "Split" a 5v Signal
Thread Starter
Launching!
Joined: Apr 2010
Posts: 285
Likes: 0
From: Sand Springs, OK
How to "Split" a 5v Signal So, as the title suggests, I need to split a 5v signal.
Reason, I have an holley EFI, and a Fast EZ TCU. Both need a TPS signal.
Right now, I have a splice in the line, but, this is introducing a lot of noise causing odd behavior such as... Holley EFI not "Learning" as much as it should, and erratic shifting / Lockup in the transmission.
For the EE majors here,
How can a 0-5v signal be effectively split, without introducing a lot of noise.
And, before somebody says it, Yes, I am well aware there are remote-mount TPS systems, and other solutions involving a second TPS. However- there is a simple method to accomplish splitting the signal, using electronical components. I just don't know it.
Reason, I have an holley EFI, and a Fast EZ TCU. Both need a TPS signal.
Right now, I have a splice in the line, but, this is introducing a lot of noise causing odd behavior such as... Holley EFI not "Learning" as much as it should, and erratic shifting / Lockup in the transmission.
For the EE majors here,
How can a 0-5v signal be effectively split, without introducing a lot of noise.
And, before somebody says it, Yes, I am well aware there are remote-mount TPS systems, and other solutions involving a second TPS. However- there is a simple method to accomplish splitting the signal, using electronical components. I just don't know it.
Thread Starter
Launching!
Joined: Apr 2010
Posts: 285
Likes: 0
From: Sand Springs, OK
Oh, and before somebody links other pages...
https://ls1tech.com/forums/automatic...ignal-dbw.html
https://ls1tech.com/forums/generatio...e-jumping.html
https://forums.holley.com/showthread...ectronic-trans
https://forums.holley.com/showthread...4139#post84139
https://forums.holley.com/showthread...-transmissions
https://forums.holley.com/showthread...ntroller/page2
None of those answer my question.
https://ls1tech.com/forums/automatic...ignal-dbw.html
https://ls1tech.com/forums/generatio...e-jumping.html
https://forums.holley.com/showthread...ectronic-trans
https://forums.holley.com/showthread...4139#post84139
https://forums.holley.com/showthread...-transmissions
https://forums.holley.com/showthread...ntroller/page2
None of those answer my question.
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
You could use a 12V source with a 5V voltage regulator from an electronics store. But splitting the 5V source shouldn't be causing you any issues, there is likely something else going on. Most people with aftermarket ECU's have to split the 5V source 5-10 different ways, and have no issues.
TECH Enthusiast
Joined: Nov 2016
Posts: 711
Likes: 6
From: PNW
Twist the pair of wires. This is even more effective than shielded coax type wiring. This is how ABS sensor wiring is routed, it’s also what’s inside Ethernet cable. If you only have one wire, then run a ground wire with it that connects directly to both and twist them together, it’s called a “signal ground”
TECH Addict
Joined: Oct 2016
Posts: 2,513
Likes: 480
From: PDX-OR-USA
I believe the gadget you need is a 5V SIGNAL optical splitter/isolator is a 6 or 8 pin chip that gets a signal in+sig ground and a pair of signal out + grounds, your trying to isolate a dynamic signal.
I would have thought the Holley could repeat a signal for one input to another output but haven't messed with one. Your. other option is a couple of the TPS sensors have shafts that can be made to pass through the sensor, just stack 2 of them one for each black box.
I would have thought the Holley could repeat a signal for one input to another output but haven't messed with one. Your. other option is a couple of the TPS sensors have shafts that can be made to pass through the sensor, just stack 2 of them one for each black box.
