Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Power soft start board / amp delay soft start board   what is it ???
Power soft start board / amp delay soft start board   what is it ???
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 18th September 2016, 01:54 AM   #1
thesaintxxx is offline thesaintxxx  Thailand
diyAudio Member
 
Join Date: Oct 2014
Default Power soft start board / amp delay soft start board what is it ???

Power soft start board / amp delay soft start board

what is it ??? thk
  Reply With Quote
Old 18th September 2016, 03:52 AM   #2
Old'n'Cranky is offline Old'n'Cranky  Australia
diyAudio Member
 
Join Date: Aug 2009
Is the search function no longer working ?
  Reply With Quote
Old 18th September 2016, 03:54 AM   #3
Tromperie is offline Tromperie  Australia
diyAudio Member
 
Join Date: May 2015
Location: Melbourne
What is the question?
  Reply With Quote
Old 18th September 2016, 04:56 AM   #4
thesaintxxx is offline thesaintxxx  Thailand
diyAudio Member
 
Join Date: Oct 2014
Default 1000W 220V Power Amplifier Protection Board Power Delay Soft Start Circuit

Quote:
Originally Posted by Tromperie View Post
What is the question?
1000W 220V Power Amplifier Protection Board Power Delay Soft Start Circuit





https://www.aliexpress.com/item/1000...999.272.R9Sl5d
  Reply With Quote
Old 18th September 2016, 05:30 AM   #5
vzaichenko is offline vzaichenko  Russian Federation
diyAudio Member
 
vzaichenko's Avatar
 
Join Date: Jan 2010
Location: Moscow, Russia
Power soft start board / amp delay soft start board   what is it ???
Quote:
Originally Posted by thesaintxxx View Post
Power soft start board / amp delay soft start board

what is it ??? thk
Normally, power amplifier's PSU has got a high-power transformer (500-1000 VA) and impressive bank of DC filter capacitors (100-300 mF). Its power-on requires gradual aproach - first, you connect PSU to the mains via an inrush resistor, limiting the current, charging the filter capacitors. After a few seconds delay, inrush resistor is shorted and PSU operates at full power.

In many cases, soft start board is combined with protection board. During the power-on sequence, the speakers are disconnected from the amplifier's output. As soon as power-on is complete (one more delay runf off), the board connects the speakers to the amplifier.

During the operation, protection circuit monitors the amp for such events as:
- DC offset at the output;
- Output stage over-current;
- Heatsinks over-temperature;
- AC failure (mains blackout).

In case of trouble, the board disconnects the speakers and shuts down the amplifier.

See the info on soft start / protection boards here:
21-st century control boards

And here is how it all started:
21-st century boards thread

Cheers,
Valery
__________________
If you can't explain it simply, you don't understand it well enough (c) Albert Einstein
http://vzaudio.com/
  Reply With Quote
Old 18th September 2016, 06:38 AM   #6
thesaintxxx is offline thesaintxxx  Thailand
diyAudio Member
 
Join Date: Oct 2014
thk , i am starting build mx50 se amp board with +
NOVER Electric Capacity Rectifier + Loudspeaker AIO Board

Description:
- Adopting original 2510 rectifier
- Electrolysis capacitor signal main loop adopts Taiwan brand, main filter adopts NOVER professional capacitor10000UF*4/50V, guarantee the constant driving support
- PCB adopts 1.6mm thick two sides board, 2.0 oz copper thickness, tin plated machining, good current passing performance, high quality of PCB board
- Adopting 12A large current imported relay, more stable performance, more durable



? is i need to add Power soft start board / amp delay soft start board or not for safety reason

thk very much againd
  Reply With Quote

Reply


Power soft start board / amp delay soft start board   what is it ???Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Power Supply Soft Start Board (V3) Jason The diyAudio Store 284 20th June 2018 08:16 PM
Class A soft start delay temperature protection board (with switch function) deafbykhorns Solid State 7 8th November 2015 04:44 PM
Power Supply Soft Start Board (V2) Ana The diyAudio Store 194 18th September 2014 08:42 AM
Soft Start PC Board organics1 The diyAudio Store 2 29th March 2013 04:18 AM
Commercial Soft Start board wytco0 Parts 0 5th August 2005 04:26 PM


New To Site? Need Help?

All times are GMT. The time now is 01:55 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki