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Old 7th August 2010, 12:40 PM   #541
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then
the HV+,MV+
HV-,MV-
and ground to psu
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Old 7th August 2010, 01:52 PM   #542
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Quote:
Originally Posted by coolet View Post
@ apex tnx got it )

tnx Angel.. I'll make a new layout

so what is the +/-MV voltage? for B500
Post #537: +/-45V, do you reed it? I suggest to use for +/-MV half of +/-HV, and you can use same all caps in series for PSU.
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Old 7th August 2010, 01:55 PM   #543
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Originally Posted by engel dela pena View Post
sorry for my lines
hope this make sense
apex pls. correct me if i'm wrong
You are wrong +/-MV connect to +/-MV not to +/-OVD. That is simple and clear I hope.
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Old 7th August 2010, 06:27 PM   #544
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ok I hope this will be fine now.

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the PSU is here...

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Old 7th August 2010, 06:29 PM   #545
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Add step driver with TL072 to B500, you can use PSU from H900, and you get class H amp with same power as H900.
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Old 7th August 2010, 06:34 PM   #546
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Quote:
Originally Posted by coolet View Post
ok I hope this will be fine now.

Click the image to open in full size.

the PSU is here...

Click the image to open in full size.
Yes, you have some wrong notification ( 33pF ), and why you don't try to design PCB with both circuits on it? Something like DJ.DUMY in thread:
900W H-class PA Amp with Limiter
post #435
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Last edited by apexaudio; 7th August 2010 at 06:49 PM.
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Old 7th August 2010, 06:52 PM   #547
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thanks Apex it should be 100N. I will try to incorporate the step driver to B500 PCB.

so i will use 4x40 volts ac ... how about the tx capacity? do I reduce it?

BTW: thanks for the explanation about your Protect circuit. I check it tomorrow.

Last edited by coolet; 7th August 2010 at 06:55 PM.
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Old 7th August 2010, 06:52 PM   #548
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Step driver with TL072 instead with IR2117, and many diyers will be hapy and greatfull :-)
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Old 7th August 2010, 06:56 PM   #549
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Originally Posted by coolet View Post
thanks Apex it should be 100N. I will try to incorporate the step driver to B500 PCB.

so i will use 4x40 volts ac ... how about the tx capacity? do I reduce it?
I use 1800VA transformer for stereo H900, put in 2U case with two fans. Add VI limiter, then it can be use with any protection, as I can see many diyers do not like to use protection, but B500 and H900 must be use with my original protection for PA. Fuses is not enough, but with add VI limiter will work.

Last edited by apexaudio; 7th August 2010 at 07:06 PM.
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Old 7th August 2010, 07:03 PM   #550
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Wow! I will have a B500 Class H... thats nice. I will do the same layout as yours since it is easy to fix in heatsink.
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