Toshiba amps "ripple capacitor" - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 14th December 2014, 11:20 PM   #1
phase is offline phase  United States
diyAudio Member
 
Join Date: Oct 2004
Default Toshiba amps "ripple capacitor"

I've noticed a common component in the toshiba (TA7250, TA8210)chip amps is a"ripple capacitor", but I don't know what this is connected to inside the chip. One side is tied to ground, so maybe the power to the input gets or whatever they have?
Any guesses?
  Reply With Quote
Old 15th December 2014, 06:34 AM   #2
yajnaS is offline yajnaS  India
diyAudio Member
 
Join Date: Jan 2011
from: TOSHIBA - datasheet pdf page 4:

Quote:
5. Capacity of ripple filter
The on / off time constant of the protector of this IC is determined by the capacity of pin(6) ripple filter terminal.
Therefore, with the capacity expansion of the ripple capacitor, the ripple rejection is improved, however, the
following two problems arise.
(1) Interruption of sound at excessive input.
(2) Reduction of the protector strength at VCCshort, GND short or outout short. Consequently, the capacity of
the ripple capacitor is recommended to by 0.033μF.
Sounds like the ripple capacitor determines the time constant of the overcurrent protection circuit.
I would use the exact value they've specified or smaller.

Last edited by yajnaS; 15th December 2014 at 06:36 AM.
  Reply With Quote
Old 15th December 2014, 04:01 PM   #3
phase is offline phase  United States
diyAudio Member
 
Join Date: Oct 2004
Thanks for looking at this, I understand the timing function part, just was curious as to whether it was tied to anything that would affect the sonic qualities of the amplifier.
I should have asked more specific I suppose...
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Commercial Solid State Amps with jumper controlled Modes "without NFB" and "with NFB" tiefbassuebertr Solid State 12 28th February 2014 05:27 PM
BLACK GATES BRAND NEW CAPACITOR 100uF 100V "FK" SERIES merlin el mago Swap Meet 22 21st July 2013 11:22 AM
FS 1 BLACK GATES USED CAPACITOR 100uF 100V "FK" SERIES merlin el mago Swap Meet 1 24th January 2013 08:49 PM
Toshiba SD-3980 "purring" DreadPirate Digital Source 4 17th January 2007 01:20 PM


New To Site? Need Help?

All times are GMT. The time now is 03:30 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2