Threaded View
-
08-09-2023 #3
Thanks for the feedback, Rod's design produces a much shorter delay, he says the optimum is around 100ms, just 5 cycles. With the 100K variable resistor my version should produce a range of 0-500ms. The combined resistance of the parallel resistor bank is 50 Ohms. This should only protect against initial inrush, and hopefully won't cause much heating of the resistors. It won't do anything about the problem of remanance though. I guess a solution to that might be a switching circuit which is synchronized to the AC? This would involve zero cross detection. I know there are relays out there which have built-in zero cross detection. It still wouldn't solve the polarity though, it could start half a wave out of sync.
Last edited by TStar; 08-09-2023 at 05:10 PM.
Thread Information
Users Browsing this Thread
There are currently 11 users browsing this thread. (0 members and 11 guests)
Similar Threads
-
Soft limits over ride
By Pilsbury in forum Machine DiscussionReplies: 2Last Post: 01-12-2022, 01:36 PM -
Is there a 'standard' base design, or does everyone start from scratch?
By Richard in forum Gantry/Router Machines & BuildingReplies: 3Last Post: 27-10-2017, 09:13 AM -
Soft Start Advice
By GTJim in forum General ElectronicsReplies: 18Last Post: 15-01-2015, 08:47 AM -
RFQ: Panels cut from soft plywood
By Rockeyes in forum Projects, Jobs & RequestsReplies: 0Last Post: 12-04-2013, 04:38 AM -
Simple Current Limiter (LM317)
By Mad Professor in forum General ElectronicsReplies: 14Last Post: 13-07-2009, 10:01 PM
Bookmarks