"The Wire AMP" Class A/AB Power Amplifier based on the LME49830 with Lateral Mosfets

[AndrewT]

Can we have comparable test results for a linear PSU+Amplifier combination, so that we can reach our own conclusion on which compromises we want to accept?

[AP2]

Originally Posted by AndrewT

This abominable behaviour completely rules out this PSU for any situation where mains power could be interrupted before it reaches the household distribution board.

For any SMPS PSU to behave like this is plain and simple "BAD DESIGN"

You've read the previous posts, or come with the usual blah blah ..?
the failure to restart it happens after I changed the connection of a resistor (I did not notice the defect using the remote control, which is perfect) (I have not tried to unplug the AC cable after last modify... I'm sorry)
yes, you and some other it will take 10 years to create this compact SMPS ..just have bad design

[AndrewT]

You released an SMPS specifically to work with this amplifier.
The PSU as supplied fails to operate properly.

Do not try to excuse that bad operation.
You designed it badly for the duty you supplied it for.

[AndrewT]

BTW,
I know my limitations.
Just one of many is designing SMPS.
I will never try to compete with you in designing any SMPS.

[AP2]

Please Owen, it is very simple replace resistor connection in first smps i sended. switch on and disconnect ac cable. you see led (it reflect voltage in primary side) switch off clean (no re-start occur).
thank

regards

[AP2]

Originally Posted by AndrewT

You released an SMPS specifically to work with this amplifier.
The PSU as supplied fails to operate properly.

Do not try to excuse that bad operation.
You designed it badly for the duty you supplied it for.

I not release this smps..i sended to Owen for adjust it on this amplifier.
this dps-400 creted in 2005, usefull for D class, then problem is in startup with bias current >150mA related this amplifier.

Obvius that have adeguate performances even it is limited to 150w amp.
and is not comparable with other smps for...lamps

[AndrewT]

Do not make excuses.
You supplied the SMPS for a specific amplifier.
The test result is abominable.

[opc]

AndrewT:

AP2 is correct in stating that I am working with an engineering sample, and in all fairness to him, the previous iteration of the DPS-400 he sent me did not have the shut-down problem and did manage to start-up with 400mA of bias.

It seems these are the two biggest issues for people, so in the interest of moving this along I'll change the resistors on the board when AP2 sends instructions and I'll re-test to verify that the start-up and shut-down both work properly.

AP2:

Please send me very specific instructions on exactly what to change, and I'll take a crack at it today providing I have the parts on hand.

Regards,
Owen

[AP2]

Originally Posted by AndrewT

Do not make excuses.
You supplied the SMPS for a specific amplifier.
The test result is abominable.

Sorry, what are the tests abominable?
I have no interest except to convince you. just to prove your pointless blah blah ... I'm not wrong in this project (create in 2005,not now).
I really hope Owen can prove that the defect is not part of this original SMPS
Please, in old dps-400, you have solder an resistor on bottom of pcb. remove it and assemble at original in top of pcb (see top layer white). value is 100-150K and try.

[AndrewT]

post1079 quotes the test result from post1075.