Pergo my friend THANKS just want to ask you for bridged Dclass amp dc protector need to cut off both outputs so 2 dc protector circuits to be used
An externally hosted image should be here but it was not working when we last tested it.
My DC-protection schematics works only if bridged outputs have 0Vdc at idle.
In that case, you can use only one circuit for both outputs: just add another 33k input resistor for the "out-of-phase output".
In case you have a bridged amp supplied at +HV to 0V (without negative rail), at idle output has +HV/2 voltage so my circuit will not work.
dETEX AUDIO FULL BRIDGE SMPS
https://www.facebook.com/photo.php?...3690158.49717.100002145681469&type=1&theater;)
https://www.facebook.com/photo.php?...3690158.49717.100002145681469&type=1&theater;)
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here you go . lukas smps is great and many others below to choose from
http://www.diyaudio.com/forums/power-supplies/69111-offline-full-bridge-smps-need-help.html
http://www.diyaudio.com/forums/power-supplies/69111-offline-full-bridge-smps-need-help-127.html
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http://www.diyaudio.com/forums/power-supplies/69111-offline-full-bridge-smps-need-help.html
http://www.diyaudio.com/forums/power-supplies/69111-offline-full-bridge-smps-need-help-127.html
diysmps
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Hi Pergo
greetings finished dclass bridged amp will try your dc protector
warm regards
Andrew Lebon
Hello sir.
Today i tested my dpa2400 d amp.
But have a dc at OP at 1 side. Wht is the problem............?
Ciao Fede!
I didn't know that this is your schematic. I wanted to use IR2110 because I've tried it (ejtagle schematic). Do you suggest a new design with IRS20957 or you can help me with IR2110 and DC protection ? I want to use it with 8FE200 by Faital (previously I had autotek 7600bts <3).
I didn't know that this is your schematic. I wanted to use IR2110 because I've tried it (ejtagle schematic). Do you suggest a new design with IRS20957 or you can help me with IR2110 and DC protection ? I want to use it with 8FE200 by Faital (previously I had autotek 7600bts <3).
IR2110 has fixed deadtime so you've to tune up the gate driver (charge and discharge) for good performance. You spend more time.
IRS20957 has variable deadtime (set by a resistor network) so it's easy to tune.
Also it has internal overcurrent protection for output mosfets and it needs only one logic PWM input (for example 0-3V or TTL) referred to signal ground (not to negative rail). So you don't need level shifting (Q1 and Q2 in your schematic).
For more infos, contact me via email or PM.
IRS20957 has variable deadtime (set by a resistor network) so it's easy to tune.
Also it has internal overcurrent protection for output mosfets and it needs only one logic PWM input (for example 0-3V or TTL) referred to signal ground (not to negative rail). So you don't need level shifting (Q1 and Q2 in your schematic).
For more infos, contact me via email or PM.
