Gate Driver Transistors Cadence ZRS7500 similar to Hifonics - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 5th November 2012, 02:18 PM   #1
diyAudio Member
 
Join Date: Feb 2004
Location: Jamaica
Default Gate Driver Transistors Cadence ZRS7500 similar to Hifonics

Anyone familiar with this amplifier. I recently got this amplifier which is totally burnt out; all 12 output fets and gate resistors 4 gate transistors and the 105 cap along with 12 outputs were burnt.
What I am not sure of is the type of driver transistors to use, Hifonics has 2 NPN and 2 PNP the PNP is connected collector to the ground and NPN collector to the positive of the 12v supply . In this amplifier the collector of the front and back transistor is connected to the ground of the 12v supply and the two in the middle is connected to the ground of Secondary Transformer windings.
Attached Images
File Type: jpg IMG-20121031-00048.jpg (598.8 KB, 78 views)
File Type: jpg IMG-20121105-00058.jpg (705.3 KB, 72 views)
File Type: jpg IMG-20121105-00059.jpg (688.4 KB, 64 views)
  Reply With Quote
Old 12th November 2012, 12:50 PM   #2
diyAudio Member
 
Join Date: Feb 2004
Location: Jamaica
Default Problem solved

It is the same design as the hifonics, It has the NPN connected to the positive 12v and PNP connected to the ground both bases driven by the power supply pwm card and emitters together through a 47 ohm resistor for each output two transistors drives one side of each bank for both power supply. -+62volts
  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
Defect Transistors in Hifonics Brutus BX1500D JoergST Car Audio 98 30th May 2014 11:55 PM
Hifonics 1206 driver board blazer40 Car Audio 2 20th July 2012 10:57 PM
Need help, gate driver! jeppson Class D 5 24th April 2011 09:55 AM
Gate driver simulation maverick_123 Class D 1 22nd September 2007 08:18 AM


New To Site? Need Help?

All times are GMT. The time now is 07:45 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2