Go Back   Home > Forums > >

Class D Switching Power Amplifiers and Power D/A conversion

ICEPower 500A Evaluation Module Question
ICEPower 500A Evaluation Module Question
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
Old 31st December 2015, 12:11 AM   #1
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Default ICEPower 500A Evaluation Module Question

Hello all,

I have an ICEPower Evaluation Module that comes without SMPS, but with caps and rectifier for a Linear Power supply (just add your transformer). There is an AC Input connector that is same type of connector used for the 500A Voltage power rail and speaker outs.

There are 8 pins, and looking at the connector, the top left pair of pins go to AC on rectifier, and kitty corner to these is another pair of pins that connect to the other AC connection of rectifier. This is where I will put the 0V - 50VAC transformer winding to make the 72VDC rail. The pair just below the power connection are common and connect to the PS ground pins on caps and audio ground.

Now the other pair to the side of power connectors are not "shared", and I think they should be for 12VAC and 12VAC transformer connections (me thinks) that make up the +/-15VDC. I cannot trace these as they disappear under the modules...

Can anyone confirm these connections?? Don't wanna blow these up...
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V

Last edited by john65b; 31st December 2015 at 12:59 AM.
  Reply With Quote
Old 31st December 2015, 01:01 AM   #2
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
This is what I believe the connections should be...
Attached Images
File Type: jpg Capture.jpg (35.6 KB, 358 views)
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V
  Reply With Quote
Old 31st December 2015, 02:03 PM   #3
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Nobody? I have seen these Evaluation Modules for sale before here...
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V
  Reply With Quote
Old 1st January 2016, 08:35 AM   #4
Cresnet is online now Cresnet  Jordan
MicroAudio
diyAudio Member
 
Cresnet's Avatar
 
Join Date: Nov 2012
Location: AMMAN - JORDAN
ICEPower 500A Evaluation Module Question
I am really not sure if any of these modules will accept AC voltage, to the best of my knoledge, these modules usually takes DC voltage from the ASP-1000.

However, I found this for you Class-D amplifiers, opinions please - Page 3


Also you can go back to the manual
  Reply With Quote
Old 1st January 2016, 01:39 PM   #5
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Yes, thanks - I should have made myself more clear - I have built tons of ICEPower amps - ones with their own SMPS and regular amps based around the non powered amp modules (ie 500A) building a separate Linear Power Supply with 72VDC and +/-15VDC.

What I have is a ICEPower Evaluation Module that consists of two 500A modules on a larger PCB with PS caps, rectifiers, pair of XLR Jacks and Neutrik Speakon speaker out connections.. This evaluation Module has an AC Input Connector that allows the connection of a transformer (all other components of a linear power supply are already on the board).

These modules do not come up that often. See pic (not mine - from another member here that posted these for sale years ago)

The ones in front of pic are like the evaluation modules I have. This was a pic from a member here years ago that sold his modules. The evl modules in front are the (dual) 500A and ones in back are (singular) 1000A...

The single square steel object in middle of 500A eval module is the heat sink fitted over the main PS rectifier for the Vp. Behind it is the AC Connector. I have not yet found the rectifier for the +/- 15VDC from tracing the board...

At first sight I thought these were made for subwoofer use maybe? But why two channel? I hope the PCB circuits do not have frequency limitations limiting the Eval module for subwoodfer duty only, like the 1000A modules (amplify to 3khz only). I have removed the actual 500A modules and compared them to regular 500A modules and look fine...but was hoping to build an amp by just adding tranny - like a Henry Ho H20 Amp (500A based amp with Class A Linear power Supply)...

I am just too lazy to get my camera to take the pic. New years res to be less lazy.
Attached Images
File Type: jpg icepower set.jpg (84.3 KB, 318 views)
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V

Last edited by john65b; 1st January 2016 at 02:00 PM.
  Reply With Quote
Old 2nd January 2016, 09:57 PM   #6
Cresnet is online now Cresnet  Jordan
MicroAudio
diyAudio Member
 
Cresnet's Avatar
 
Join Date: Nov 2012
Location: AMMAN - JORDAN
ICEPower 500A Evaluation Module Question
Most of the ICEPOWER amplifiers are full range, they use digital X-Overs for the Sub woofer or the Bi-Amp configuration.
  Reply With Quote
Old 10th January 2016, 01:47 AM   #7
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
OK, I got the voltages correct - my previous post was incorrect - just the mirror image of what I posted - confirmed by the voltages at the alternate connections on side (+15V GrndA -15V and Vp - Grndp)

Anyway, looks like the modules are still not working - the Vp is getting to the modules, but the 15VDC -0 - -15VDC are not getting to module - the external control connection header probably needs a trigger to allow these to connect to the module....

No one has the pinout connections for the external control pinouts?
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V
  Reply With Quote
Old 10th January 2016, 04:56 PM   #8
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Ha! I finally got it. The slow ramp up to 70VDC and +/- 12VDC on variac was preventing the system from completely turniing on. Once I left variac at 120VAC and switched power on, the whole system started up perfectly.

And just in case anyone was still interested, the correct AC pinout on unit is now corrected, and also a pic of where the rectifier for Vp and AC connector is
Attached Images
File Type: jpg Corrected.jpg (36.5 KB, 236 views)
File Type: jpg icepower set r1.jpg (127.2 KB, 229 views)
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V

Last edited by john65b; 10th January 2016 at 05:09 PM.
  Reply With Quote
Old 13th January 2016, 05:58 PM   #9
Nisbeth is offline Nisbeth  Denmark
diyAudio Member
 
Nisbeth's Avatar
 
Join Date: Jan 2001
Location: Denmark
ICEPower 500A Evaluation Module Question
Missed this but I should have the EVM schematic if you are interested?

/U.
__________________
DIY projects blog
  Reply With Quote
Old 15th January 2016, 03:16 AM   #10
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Yes, as I would still like to confirm my connections - Thanks!!
__________________
I Speak Spanish to God, Italian to Women, French to Men, and German to My Horse. Charles V
  Reply With Quote

Reply


ICEPower 500A Evaluation Module QuestionHide this!Advertise here!
Thread Tools

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
ICEPower 500A modules john65b Swap Meet 2 8th November 2015 01:42 PM
For sale: ICEpower 500A Modules Stanray Swap Meet 6 20th April 2015 10:23 AM
ICEPower 500A Modules john65b Swap Meet 8 8th December 2011 02:43 AM
WTB : ICEPower 500A module YCLee Swap Meet 3 15th October 2009 01:53 AM


New To Site? Need Help?

All times are GMT. The time now is 09:06 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki