Sorry about multi reply due to first time visit 320Volt.com
The battery-powered fully modular amplifier I designed also uses a similar power amplifier architecture.
However, I replaced the BD139/140 driver stage with an LT1085 as a cross-current source and an OP base analog adder.
All OP use the AD815, which is originally used for driving ADSL transformers. Additionally, a DC-SERVO circuit is incorporated.
This circuit work perfectly with +/- 14.75V Battery supply to drive my TANNOY GRF Memory speaker (15″ coaxial horn speaker unit)
https://images.plurk.com/3DMyOJrRCz2ux4wuj7ujR5.png
https://images.plurk.com/5hRX2k1E2aiLCaK5MR7aNr.png
https://images.plurk.com/4L74vfbrFVItLvFGsPx1Dn.jpg
https://images.plurk.com/1mbb7cxOxD2ifShYXGCD9E.jpg
https://images.plurk.com/1zEhnlye7EapzcWDkqj5hu.jpg
https://images.plurk.com/5twPLfQ4AOhNbWJjFLvivL.jpg
https://images.plurk.com/26K... IRFP240 IRFP9240 Mosfet 400W Amplifier Circuit
@gevv:
Hi You're welcome,
The "Clip" connection will be the LED diode.
Optional additional protection circuit is connected to the "PRO" connection;
... 340W MOSFET Power Amplifier Circuit APEX HV 23
@Don Wilson:
Thanks for publishing the schematic. I do have a question about that as I'm unfamiliar with several of the abbreviations you have on it. On the power side of the schematic, you have "PRO" that is below the +75V input, "LDP" and "LDN" that comes off of Q21 (BC546) and "Clip" that also is at the same location (my assumption is that these are joined with a diode of some type between. What diode is used there?). What are the meanings of these and what do they do?... 340W MOSFET Power Amplifier Circuit APEX HV 23
Why the copper path in PCB watermarked?
Could you please send me the version of not watermarked path..... STK442-090 Amplifier Circuit
@vaishnav.s:
I think if you buy the tip "c" version instead of a or b then it has a Vce of about 100v, I bought a transformer of 40 0 40 after rectification it would be 56 0 56. So I think that is fine about the diff amp pairs A1015 at the input stage, which has Vceo of -50v mazing so I am also changing that with 2n5401 which has -150v Vce.... 2SA1943 2SC5200 200W Amplifier Circuit
And why is that zener net for? Fan Cooler?... 8-OHM 100W RMS Amplifier 2SC5200
Hi sir I am finding a 500watt MOSFET audio amplifier 48+48 volt... 200W Amplifier Low High Bass Control TIP3055 TIP2955
After I added this to my library, my Proteus 8.8 keeps turning off or shutting down every 2 or 3 minutes....What could be the problem.... Proteus Adjustable DC Power Supply Models Library
Salve, con questo circuito si possono controllare dei condensatori senza essere smontati dalla scheda madre?... ESR Meter Modified Analog Multi Meter 150 Khz
Sorry about multi reply due to first time visit 320Volt.com The battery-powered fully modular amplifier I designed also uses a similar power amplifier architecture. However, I replaced the BD139/140 driver stage with an LT1085 as a cross-current source and an OP base analog adder. All OP use the AD815, which is originally used for driving ADSL transformers. Additionally, a DC-SERVO circuit is incorporated. This circuit work perfectly with +/- 14.75V Battery supply to drive my TANNOY GRF Memory speaker (15″ coaxial horn speaker unit) https://images.plurk.com/3DMyOJrRCz2ux4wuj7ujR5.png https://images.plurk.com/5hRX2k1E2aiLCaK5MR7aNr.png https://images.plurk.com/4L74vfbrFVItLvFGsPx1Dn.jpg https://images.plurk.com/1mbb7cxOxD2ifShYXGCD9E.jpg https://images.plurk.com/1zEhnlye7EapzcWDkqj5hu.jpg https://images.plurk.com/5twPLfQ4AOhNbWJjFLvivL.jpg https://images.plurk.com/26K... IRFP240 IRFP9240 Mosfet 400W Amplifier Circuit
Hi You're welcome, The "Clip" connection will be the LED diode. Optional additional protection circuit is connected to the "PRO" connection; ... 340W MOSFET Power Amplifier Circuit APEX HV 23
Thanks for publishing the schematic. I do have a question about that as I'm unfamiliar with several of the abbreviations you have on it. On the power side of the schematic, you have "PRO" that is below the +75V input, "LDP" and "LDN" that comes off of Q21 (BC546) and "Clip" that also is at the same location (my assumption is that these are joined with a diode of some type between. What diode is used there?). What are the meanings of these and what do they do?... 340W MOSFET Power Amplifier Circuit APEX HV 23
Hi, Thanks for the feedback. Post edited.... LM3886 Amplifier Module
Thank you for this good source. By the way, in a few place, it is written "V" mistakenly instead of "Ohm".... LM3886 Amplifier Module
Hi, The file has been updated (pdf pcb drawing added). Download it again.... STK442-090 Amplifier Circuit
Why the copper path in PCB watermarked? Could you please send me the version of not watermarked path..... STK442-090 Amplifier Circuit
I think if you buy the tip "c" version instead of a or b then it has a Vce of about 100v, I bought a transformer of 40 0 40 after rectification it would be 56 0 56. So I think that is fine about the diff amp pairs A1015 at the input stage, which has Vceo of -50v mazing so I am also changing that with 2n5401 which has -150v Vce.... 2SA1943 2SC5200 200W Amplifier Circuit
Hi, ±12v is too low voltage. ±30v is recommended for testing... 2SA1943 2SC5200 200W Amplifier Circuit
Hi, 2x2,5Amp... 8-OHM 100W RMS Amplifier 2SC5200
Hi, Varies according to operating voltage... 2SA1943 2SC5200 200W Amplifier Circuit
100W on a 4Ohm Speaker and 200W on a 8Ohm Speaker? Wouldn't it be the other way around?... 2SA1943 2SC5200 200W Amplifier Circuit
Which is the transformer's current on the secondary?... 8-OHM 100W RMS Amplifier 2SC5200
Selamun Aleyküm lm 358 - TL 431 - ve BT 136 ile birlikte sürücü triyaklı olan Hakko 936 devresi var mıdır ? Yoksa ekler misin ?... 24V soldering iron Control circuit heat control to 450 degrees
Can I use ±12v power supply to check if amplifier works okay.... 2SA1943 2SC5200 200W Amplifier Circuit
Love your project ❤... TDA1562Q Car Amplifier Circuit
Hello. Can you advice how to improve this schematic for parallel using for increase of current up to 20a and more?... DC DC Boost Converter Circuit 12V to 24V 10A SG3524 PWM
What does P1 100K do?... Speaker Protection Circuit
Which purpose did you use mpu6050 in this circuit... Electric Bicycle BLDC Motor Control Circuits 500W 1000W
Hi, No sales. Files required for circuit construction have been shared. DIY.... DC to DC converter circuit 1400W SG3525
320volt.com... Crossover, Active Audio Filter Circuits NE5532 Opamp
Where can this module be found for purchase or assembly kit... DC to DC converter circuit 1400W SG3525
Zip file has protected.. what's the password?... Crossover, Active Audio Filter Circuits NE5532 Opamp
320volt.com... Simple SeriaL Port PIC Programmer Circuit programming ICprog
what is the password for "FILE DOWNLOAD LINK LIST (in TXT format): "... Simple SeriaL Port PIC Programmer Circuit programming ICprog
320volt.com... Frequency Meter Circuit LCR Meter ATmega328