
Irrigation Step-Down
STDIrrigation Step-Down
241
0
0
0
Mode:Full
License
:Public Domain
Creation time:2024-05-12 05:07:34Update time:2024-06-14 01:56:00
Description
Step down AC voltage from +27V to +24V. Line smoother to prevent ringing with AC Pump Start Relay.
A common issue with irrigation pump start relays being located too close to the controller which introduces EMI noise during initial 60A in-rush current that causes relays to quickly latch and unlatch. This should hopefully solve the issue by dropping the 27VAC+ source to 24VAC nominal with a voltage divider and smooth any AC line ringing with a heavy duty shunt resistor.
Design Drawing

BOM


Add to Album
0
0
Share
Report
Project Members
Followers0|Likes0
Related projects

Comment