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Old 10th April 2006, 03:09 PM   #1
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Default 500w Class D

500W@4 OHMs,1kHz,THD+N<1%
Min THD+N:0.05%
BW:20-20,000Hz
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Old 10th April 2006, 03:38 PM   #2
Ryssen is offline Ryssen  Sweden
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Nice.
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Old 11th April 2006, 03:29 AM   #3
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Default Re: 500w Class D

Quote:
Originally posted by drzhuang
500W@4 OHMs,1kHz,THD+N<1%
Min THD+N:0.05%
BW:20-20,000Hz

What dat???

First Mueta???

MUETAAAA!!!!!!!!!!!!!

No really, tell us about it would ya? Schematic?
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Old 11th April 2006, 06:41 AM   #4
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Looks like a Hip4080 design.
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Old 11th April 2006, 11:55 AM   #5
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The topology is different from orthers.
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Old 11th April 2006, 11:55 AM   #6
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THe module plug into main board is named DR500FB. The schematic is in secrecy. Demo of DR500FB will be delivered.
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Old 11th April 2006, 12:30 PM   #7
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Let's see. It's not class-D, not class-AD, not class-BD, as well as all other classes as tabulated by Karsten Nielsen.

Class-D is dead. Long live class-Zhuang!
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Old 11th April 2006, 01:32 PM   #8
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Quote:
Originally posted by koolkid731
Let's see. It's not class-D, not class-AD, not class-BD, as well as all other classes as tabulated by Karsten Nielsen.

Class-D is dead. Long live class-Zhuang!

Heh.... I think he just meant to say it differs from the as seen on the data sheet hip4080. Not so sure it uses that at all either.

From google translator:

Overview :

DR500 Providing high-quality D Type power amplifier required preparation and control functions, external hard disk power MOSFET Configuration flexibility to meet 500W The different power output.

Features :

Escape PWM Preparation, frequency 250kHz

In response to the bands

Single power supply, wide voltage range of work

3A Driven currents

THD+N F 0.2%

Efficiencies : 92%@250W C 8 @ Island

88%@500W C 4 @ Island

Export direct current spaces -

1 4 feet separate plug-ins module

Guozaibaohu



Applications :

Active box amplifier

Vehicle-mounted power amplifier

Bass amplifier

Broadcasting system

@

Quotations :

1000PCS at : 32 yuan RMB

Reference design model unit : 210 Yuan RMB

http://translate.google.com/translat...language_tools
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Old 11th April 2006, 01:35 PM   #9
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Quote:
Originally posted by koolkid731
Let's see. It's not class-D, not class-AD, not class-BD, as well as all other classes as tabulated by Karsten Nielsen.

Class-D is dead. Long live class-Zhuang!

The topic is "500W CLASS D". There is't class-Zhuang. IS it clear?
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Old 11th April 2006, 01:39 PM   #10
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Quote:
Originally posted by drzhuang



The topic is "500W CLASS D". There is't class-Zhuang. IS it clear?

Sooo you're saying it's a class Z??

Why not tell us what makes class Z unique? We don't need ze schematic.
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