Class D TL071 by LN Electronic

[surachit]

this circuit sell oscilator and class d frequency about 170khz vcc test +-55v

 

[dangus]

So, what kind of performance numbers does an open-loop class-D amplifier make?

 

[as_audio]

C4 wrong polarity

 

[surachit]

thank you r 3 large value, the circuit does not work If the value is small, the circuit consumes more current.

 

[surachit]

vdo sound test

 

[as_audio]

Please show scope pictures.

 

[HAYK]

120uH ! with 4 ohms????

 

[stewin]

this circuit sell oscilator and class d frequency about 170khz vcc test +-55v

nice project surachit , what can you do to use n channel fets only ?

 

[surachit]

VERSION2 TLO71 CLASS D frequency about 200khz at load 4 ohm v out 32vrms

 

[surachit]

Improved ver1, higher frequency from 170khz to 265khz, better waveform. getting better