PSU for class D...how reference controller?

eem2am · 07:54 AM

If a Class D amplifier runs off split rails centred on 0V (eg -24V, 0V, +24V) then to which voltage rail is the associated control circuitry for the amplifier referenced…..is it to the 0V rail or the +24V rail.?

Hurtig · 30th June 2011, 08:35 AM

Typically it is the -24V for the gate-driver. But depends on the actual design.

eem2am · 2nd July 2011, 11:52 AM

Is anything referenced to the centre tap (i.e. 0V rail)?

eem2am · 19th September 2011, 06:34 PM

sorry to raise this again, because someone just told me their class d is referenced to the centre rail....surely this cannot be right.......?

How can you have a fet drive chip that drives one fet below its ground then one fet above its ground..?

30th June 2011, 07:53 AM	#1
eem2am diyAudio Member Join Date: Jun 2011	PSU for class D...how reference controller? If a Class D amplifier runs off split rails centred on 0V (eg -24V, 0V, +24V) then to which voltage rail is the associated control circuitry for the amplifier referenced…..is it to the 0V rail or the +24V rail.? Last edited by eem2am; 30th June 2011 at 07:54 AM. Reason: spelling

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Soundstream Reference Class A3.0 schematic needed	pigeon_snake	Car Audio	0	7th February 2011 06:36 AM
Samsung 1602VFD For CDROM Controller & Remote Volume Controller	slowgay	Swap Meet	2	22nd November 2008 02:44 PM
Soundstream Reference Class A 6.0	audiobahnkid592	Car Audio	0	9th January 2008 12:57 AM
PSU for REGA P9 (24V AC controller)	limono	Analogue Source	1	24th May 2007 02:20 PM
Int. Rect. Class D reference designs	stoc005	Class D	3	17th February 2007 03:51 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

30th June 2011, 08:35 AM	#2
Hurtig diyAudio Member Join Date: Feb 2005 Location: Denmark - Århus	Typically it is the -24V for the gate-driver. But depends on the actual design.

2nd July 2011, 11:52 AM	#3
eem2am diyAudio Member Join Date: Jun 2011	Is anything referenced to the centre tap (i.e. 0V rail)?

19th September 2011, 06:34 PM	#4
eem2am diyAudio Member Join Date: Jun 2011	sorry to raise this again, because someone just told me their class d is referenced to the centre rail....surely this cannot be right.......? How can you have a fet drive chip that drives one fet below its ground then one fet above its ground..?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)