My class D amp

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#501
Hi Sandeep,

Nice work

Hi all,

My Car AUD400 coming now🙂(Mono block)

DC converter o/p +/-45V 10A
1010W @ 2R Load
500W @ 4R Load
253W @ 8R Load

DC protect only

Regards
MANOJ
 

Attachments

  • CAR AUD400.JPG
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#503
Hi Aman,

All my designs are sold out.

Pls wait for few more days, My new AUD1000SD (all SMD) PCB will come after MAY 15th

New AUD1000SD

PCB size 100mm x 160mm
Layers: 2
Thickness: 1.6 mm
Material: FR-4
Finished Copper: 1 oz Cu
Surface Finish: Immersion gold
Solder Mask: Blue
Silk Screen: White

Regards
MANOJ
 
#506
Hello sir MANOJ, Iam going to build ur "AUD250SF" amp. I prefer 250W @ 8ohm for sub woofer. sir i have some doubts on this..
1. Do i need to add lowpass filter to this amp for subwoofer.if no then what is the cutoff frequency.
2. can you provide PCB of Power Supply Unit & DC protection for this amp.
3. sir ,for this amp what will be the wattage of Subwoofer i would buy
i mean is Subwoofer below the amp rating or higher the amp rating.

Regards
Yedu
 
#507
Hi Yedu,

are you in kerala?

1. Do i need to add lowpass filter to this amp for subwoofer.if no then what is the cutoff frequency.
2. can you provide PCB of Power Supply Unit & DC protection for this amp.
3. sir ,for this amp what will be the wattage of Subwoofer i would buy
Click to expand...

1. Yes You need Low pass filter
2. Yes you can use my AUD600 power board (max. supply volt DC +/-45V)
3. 8@250W FTC RMS (Supply Rail +/-45V 7A)

Regards
MANOJ
 
#508
Hi all,

Now arrived new AUD1000SD gold plated PCB🙂

PCB 141425A , PCB 141425F is blue mask and immersion gold
and PCB 141425L is green mask and solder.

141425A for AMPLIFIER
141425F for FILTER (use for SUB)
141425L for Volume and Limiter with LED indication

Regards
MANOJ
 

Attachments

  • AUD100SD.jpg
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  • AUD1000SD-2.jpg
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#509
hi Manoj sir, thank you sir for your replay.Oh yes, im from Trivandrum.sir sorry to ask again ,because iam not clear about some sections..

1. Selection of SubWoofer...i meant that, For this amplifier what will be the wattage rating for the Subwoofer. ie below 250w or higher than 250w.
Because iam newbie in selection of subwoofers.

2. For PSu, you mentioned aud600 psu. But its output is +/-75 so how toreduce to +/-45.
sorry for asking again..

Regards
Yedu
 
#512
🙂

New PCB(all SMD) is working good @300KHz FSW no heat and best sound quality.
Test mode
supply--- +/-65V DC
load---- 2.6 Ohm speaker ( 3x 8 Ohm)
without signal fsw=323KHz(323KHz first switch on then it reduced to 302Khz). with signal fsw=297Khz
FET used IRFP250N
start oscillating without signal.😉

Regards
MANOJ
 
#515
I am starting a project with the TAS5630 can some one tell me which is a more effeiceint board the shure 2 x 300 Watt 4 Ohm Class D Audio Amplifier Board TAS5630 300W Stereo Power Amp | eBay

board or this one Assembled TAS5630 +OPA1632DR 300W+300W Stereo Class D Audio Power Amp Amplifier Board-in Amplifier from Electronics on Aliexpress.com

I already have the power supply do I need anything else Input Voltage: 100~120V AC, 200~220V AC (Preset 230V)

Output Voltage: 48V DC

Output Current: 7.5A
 
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