IR2010 amplifier-New Project

[zox2003]

Eva,

What components are you looking for (RF elimination)?
On Botom side I have 6 bypass SMT capacitors (0.1uF---3 per rail) very close to output FET's (collector to GND and emmiter to GND).Additionaly each rail has 1000uF and 0.22 uF capacitors to GND.

PS.

Can you give me a link with your oscilloscope captures so I can compare them to mine?

Regards,

 

[Eva]

My waveforms:

http://www.diyaudio.com/forums/showthread.php?postid=1364013#post1364013

The last two pictures show some 100Mhz local resonance in Vds because the probe is connected directly to the TO-220 metal tab of the low side transistor and some internal package resonance is unavoidable. It does not progpagate outside TO-220 legs, though (as gate waveform tells).

 

[zox2003]

On Botom side I have 6 bypass SMT capacitors (0.1uF---3 per rail) very close to output FET's (collector to GND and emmiter to GND).Additionaly each rail has 1000uF and 0.22 uF capacitors to GND.

Output FET's are IRF540z.

 

[Eva]

I also use IRF540Z, three 100nF 50V SMD chip capacitors per rail and channel, 1uF 100V "dampers" and 4700uF 35V main capacitors.

I'm really curious about your waveforms.

 

[ionutgaga]

Why would I if everything works fine?
PCB is double sided also...

Because it will pick-up noise from vdd... and your waveforms will look ugly in comparision with Eva scope results...

 

[zox2003]

First, happy new year to everybody...and last night I used my amps to power up two sets of profesionall speakers (3 way) including bass speaker two.No issues at all.They were running for 4 hours (new year eve) on full power ..get warm.I will post pictures soon of compleated amplifier (in box).I am very happy with results and sound quality.I love them.

Regards