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Old 14th April 2010, 07:06 PM   #191
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Quote:
Originally Posted by Valenca View Post
Apex, Could you send the schema and PCB of power?
What do you mean "power"?
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Old 15th April 2010, 10:35 AM   #192
Valenca is offline Valenca  Brazil
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Sorry, the "power" the same as "Amplifier" in brazil.
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Old 15th April 2010, 10:58 AM   #193
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Quote:
Originally Posted by Valenca View Post
Sorry, the "power" the same as "Amplifier" in brazil.
U can find circuits and pcbs in my threads,
900W H-class PA Amp with Limiter and 500w PA amplifier with Limiter
http://www.diyaudio.com/forums/searc...earchid=963131
Regards

Last edited by apexaudio; 15th April 2010 at 11:25 AM.
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Old 15th April 2010, 11:13 AM   #194
Valenca is offline Valenca  Brazil
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My friend, The link not work.
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Old 15th April 2010, 11:30 AM   #195
Valenca is offline Valenca  Brazil
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OK, thanks !

I found.
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Old 16th April 2010, 08:33 PM   #196
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Default PSU for MOSFET Amplifier

Quote:
Originally Posted by Valenca View Post
Apex, Could you send the schema and PCB of power?
This PSU was used in time when I building this mosfet amplifier. There is PSU, DC and overload cut-out protect for each channel and soft-start for toroidal transformer. This circuit can be used with any amplifier.
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File Type: jpg APEX MOSFET PSU.jpg (688.8 KB, 1931 views)
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Old 19th April 2010, 10:52 PM   #197
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Default HV-23 20kHz

APEX MOSFET HV-23 screen from sim.
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Old 23rd April 2010, 05:03 PM   #198
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PA Protect can be used with Hi-Fi amps also. For silent operation 47R/5W do not stafed, and fan do not work on low speed, when heatsink temperature is over 60deg it will turn on to high speed, and even without fan when heatsink is over 90deg protect will cut-out speakers anyway.
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File Type: jpg P1010421.JPG (664.3 KB, 1456 views)
File Type: jpg APEX%20PA%20PROTECT.jpg (226.1 KB, 2379 views)
File Type: jpg APEX%20H900%20Protect%20Component%20layout.jpg (664.6 KB, 1441 views)
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Old 23rd April 2010, 05:52 PM   #199
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Short circuit protect cut-out speakers, and not turn on again until amplifier was turn off, and turn on again (power on reset). DC protect turn on speakers when DC gone, and thermal protect turn speakers again when amp get cold.
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Old 27th April 2010, 11:09 AM   #200
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Hallo apex, My HV350 is almost done, I wonder with this amplifier adjust the BIAS. could you help me?
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