FPC to COR

121

02:00:43

*** Incomplete ***
Need assistance configuring the zener diodes and relay. Using 2N7000 values from: https://everycircuit.com/circuit/5282567524450304/36........library-of-fet-s..............36

Description:
Controlling a Circuit Opening Relay (COR) without a fuel pump controller by using the 5v PWM output (FPC) from the engine ECU for safe operation of the fuel pump.

Reference:
http://wilbo666.pbworks.com/w/page/43601575/Toyota%20FPC%20to%20COR%20Wiring

MOSFET: 2N7000
Zener diodes: 1N4746A
Relay:
http://hellahd.com/index.php/default/electrics/relays/mini-280-relays/electrics-product-11/

published 5 years ago

MatthewKessler

5 years ago

The voltage applied to the relay is constant. For the relay to work, apply an oscillating voltage to the relay.

BillyT

5 years ago

Can get it to work, but there is a lot of things that need to be done, basically in EC that pulse needs an earth and as shown it is negative at the gate of the fet it needs to be positive, and the fet hasn't got enough grunt to drive the relay, work on those problems first, you may need to put in a fet driver transistor.

ntd_

5 years ago

Thanks, appreciate the replies. I am new to EC and have limited knowledge of circuit design. My experience is more with computer software and automotive wiring. I was using the guide from the last link in the description so was curious to see how it works. Looks like I need to learn more about EC and how to adapt their diagram.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.