900W H-class PA Amp with Limiter

[HighTec]

What is the use of posting the work which one is not ready to share with forum

No sharing here, only on ebay! 🙄

 

[andrewlebon]

Hi HighTec
greetings anything to share on ebay
warm regards
andrew lebon

 

[wattaniya]

hi apex sir,
can u tell me how to reduce the voltage base to gnd, on outputs

 

[rizqi]

hi apex sir,
can u tell me how to reduce the voltage base to gnd, on outputs

Hi Naziir,.... if u want make 2v or more, u must replace 680R with vr 1k and 100R replace with vr 1k too,. set vr 1k in 500R , then set 2v with adjust.
i hope this works😉

 

[ravpreet420]

hi apex sir,
can u tell me how to reduce the voltage base to gnd, on outputs

hi
plz add 1k variable on the place of 680r base resistance and reduce base voltage ...
i think main trans. voltage is ok

 

[ravpreet420]

and also set voltage on base transt. colector to emmitter 2v ,don't reference gnd ....

 

[wattaniya]

hi rizki and ravpeet i need 0.2v (200mv) base to gnd without vr.
if i put 560ohm instead 680 ohm resistor.

 

[andrewlebon]

TD CLASS

TD CLASS MAYBE SOMEONE TRY IT
warm regards
andrew lebon😉

 

[jose luis guerrero]

This system saying that I realized I used the design class ab amplifier model RAM BUX and put the injection system of the APEX H900 with IR2117. Please discuss this pcb fed back and tell me if it works.

 

[ravpreet420]

hi rizki and ravpeet i need 0.2v (200mv) base to gnd without vr.
if i put 560ohm instead 680 ohm resistor.

firstly add 1k pre set and set voltage according to need .first time set pre set in center and rotate slowly .....after set voltage on base . remove the pre set carefully and check the pre set on multimeter according the dmm reading you add resister on place of pre set....

 

[wattaniya]

firstly add 1k pre set and set voltage according to need .first time set pre set in center and rotate slowly .....after set voltage on base . remove the pre set carefully and check the pre set on multimeter according the dmm reading you add resister on place of pre set....

thanks for the reply ravpeet, i will try.

 

[clovi_kate]

for soerdjanto and Rohmad fauzi, may i know what type of metal you used for toroid core traffo?..i'm planning to build a transformer but i dont know which type of metal is good for 220v/60Hz line.

 

[Rohmad fauzi]

for soerdjanto and Rohmad fauzi, may i know what type of metal you used for toroid core traffo?..i'm planning to build a transformer but i dont know which type of metal is good for 220v/60Hz line.

CRGO sir..

 

[clovi_kate]

is that a silicon steel?..does it have common name?..i'll try to find it here,tnx sir..

 

[rizqi]

DETEX 2500

TD CLASS MAYBE SOMEONE TRY IT
warm regards
andrew lebon😉

nice designs,.. 🙂
where the schema for that,?..
thanks n regards

 

[andrewlebon]

detex never gives any schematic
warm regards
andrew lebon

 

[rizqi]

detex never gives any schematic
warm regards
andrew lebon

whether dertex tested well at TD class?

 

[sergiu_oct]

hi apex sir,
for this project may use an alternative voltage transformer which has 2 x 0 - 45 - 68Vac?

 

[apexaudio]

hi apex sir,
for this project may use an alternative voltage transformer which has 2 x 0 - 45 - 68Vac?

Yes 2 x 0 - 45 - 68vac is ok.

 

[nugroho]

hi miles,
can i use this modification of using 2 transformer but diferent size?
like this:

regard