Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

switching solenoid noise spikes

Status
Not open for further replies.
E

engineer1000

Advanced Member level 4
Joined
Aug 16, 2012
Messages
106
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
2,060
I am switching an AC 230V solendoid on and off using a relAy to drain a tank of water. The problem is when the solenoid turns off I get a large spikes on the output of by 7805 reg. The nuetral is permanently connected to the solenoid with the relay contact switching the Live .
Anyone got any ideas of how to suppriss the noise spikes?
 

If the relay is DC, you need to have a flyback diode across the coil. If the noise is from the solenoid, put a snubber across the relay contacts.
 

barry said:
If the relay is DC, you need to have a flyback diode across the coil. If the noise is from the solenoid, put a snubber across the relay contacts.
Click to expand...

The solendoid is a 230V ac one
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top