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4hv.org :: Forums :: Projects
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High current capable Class D amplifier

Move Thread LAN_403
Experimentonomen
Sat Jan 19 2013, 08:46AM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
A triangular wave is preferred, a sawtooth wave produces a nonlinear pwm and hence distortion.
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Experimentonomen
Sat Jan 19 2013, 03:44PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
The boxing has begun:

Link2
Link2
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teravolt
Sat Jan 19 2013, 07:45PM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
my bench has more stuff on it. good work Experimentonomen and thanks
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Experimentonomen
Sat Jan 19 2013, 09:39PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
The work continues:

Link2
Link2
Link2
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teravolt
Sat Jan 19 2013, 11:53PM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
what is the outputs of the transformer
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Experimentonomen
Sun Jan 20 2013, 08:37AM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
4x30VAC or 2x60VAC 1500VA.
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teravolt
Sun Jan 27 2013, 08:16PM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
hows your project going
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Josh Campbell
Sun Jan 27 2013, 10:02PM
Josh Campbell Registered Member #5258 Joined: Sun Jun 10 2012, 10:15PM
Location: Missouri - USA
Posts: 119
Great progress! How's the case coming along?
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Experimentonomen
Sun Jun 16 2013, 08:01PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
Dug this beast outta storage and did some more work on it:
Link2

Testing the psu:
Link2

Some 5V regs and it might live again, however im contemplating rebuilding it to self oscillating post filter feedback UcD based rather than the current clocked topology as i generally dislike having to deal with triangular wave generators.
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