HiFi Power amplifier Circuit (Hybrid )

Closed Posted 2 years ago Paid on delivery
Closed Paid on delivery

I am currently building a variable power supply:

Voltage: 60-82vdc

Current: 20-40 amp

I need someone or team to develop the following audio amplifier circuit to pair with it…

Frequency Response: 1hz-180khz, +0db

Input sensitivity: 1v

Power: 1000w rms minimum @ 8ohms, where at the first 10-30watts the circuit is using the Class A architecture .

Gain: 45db (without clipping)

Impedance : 16ohm – 0.5ohm

.01% THD or less

Signal to noise ratio: 120db or better

Damping factor 350

Class-A Input:

Discrete Mosfet based circuit, with professional level fidelity, that is flat across the entire Frequency range.

Fidelity is very important, get this right before moving to next step.

Gain Stage:

Three stage Darlington circuitry to reduce distortion.

Class AB Output

Quad push pull amplification design on output stage. It must have a flat output Impendence across the entire audio band.

Take all steps needed to ensure switching is undetectable electronically when compared to the Class A Stage.

(If you are capable of converting the output stage to a Class D, with the same quad amplification design I would prefer it)

Protection:

Have the required protection form noise and protection for output . (Noise suppressor for power supply input etc )

This should also have: clipping indicator, output level indicator, blown fuse indicator.

Additional features:

Allowance for an increase in voltage from base of 60vdc to 82vdc (circuit should able to handle the increase and simply increase its out wattage in response.)

Please make your best attempt to separate hot components from the rest of the main board if a passive board level heat sink will not be enough to cool it.

Your PCB layout should be 6 layers or higher with oversized pathways, coming as close as the board will allow to “point to point" connections.

This project will take time, so I’m not going to be moved by sweet talk of a 3day delivery time… What would give you the edge is being able to do this with a Class D Output Stage hitting or exceeding all the other goals .

If your design is impressive you will be asked to do 3 variations, (changing only the input power and output in watts)

Electronic Design Electrical Engineering PCB Layout Circuit Design Engineering

Project ID: #30733606

About the project

13 proposals Remote project Active 2 years ago

13 freelancers are bidding on average $277 for this job

avigupta0061

Best Circuit Design Expert at your doorstep! Dear Client, We have lots of experience in Circuit design so that we able to do this project for you. We can provide HiFi Power amplifier Circuit (Hybrid ) with Frequency ( More

$500 USD in 2 days
(35 Reviews)
7.2
olaideejiwole

Hello sir/ma, I'm interested in taking this task up for you. I am an Electrical Engineer with a masters degree and I have high proficiency knowledge in: FPGA firmware in VHDL and Verilog for Altera/Actel/Xilinx FPGAs a More

$35 USD in 2 days
(55 Reviews)
6.2
HarimohanG

FREE OF COST CONSULTATION Dear Client, I have extensive experience in Circuit design so I can design HiFi Power Amplifier Circuit (Hybrid ) for you with meeting all requirements in a quality and timely manner. Please More

$200 USD in 2 days
(3 Reviews)
5.2
etalhak

Hello, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems' design. So far I have designed many amplifiers and I am experienced with EMI as well. I have just More

$250 USD in 7 days
(21 Reviews)
4.8
engrhassanwali

Hi! I have seen that you need an experienced Electrical Engineer for Matlab. I am a professional Engineer with more than 8 years experience in Matlab. My professional experience contain simulink, model designing, sim More

$250 USD in 7 days
(11 Reviews)
4.9
fawadazeem1

Hello, I am bidding based on your invitation. I am Dr. Fawad Azeem PhD in Electrical engineering. I have seen the requirements and I am fully confident that I can provide you the layout diagram of the circuit.

$140 USD in 7 days
(12 Reviews)
4.9
intellisenseIN

Hi there, We can surely design a HiFi Power amplifier Circuit. I came across with your requirement very carefully. I have specialization in Power electronics. We have skills in:- 1. IOT products development 2. Micro More

$280 USD in 30 days
(3 Reviews)
4.0
bouzayeniabdelwa

I am an Electro-Mechanical Engineer , I love all engineering tasks and I can offer freelance work focused on the development of new products. Hoping to work for great people like you and making you happy through my wor More

$150 USD in 3 days
(13 Reviews)
3.7
demonscreation

Hello there! I'm engineer Achintha, ## PLEASE LET ME TO DO THIS I WILL COMPLETE THIS ## ## I'M PROFFESSIONAL ELECTRICAL ENGINEER I WILL FINISH THIS NICLY WITH MY KNOWLEDGE ## I am an expert in Tele communication engi More

$200 USD in 7 days
(1 Review)
1.2
EdwinPaezGuerrer

Hello, I am an electronic engineer and I have the knowledge and experience necessary to develop the project according to the specifications that it manifests. I have the support of a colleague to develop it and we woul More

$1112 USD in 30 days
(0 Reviews)
0.0
shafiquewaxiri

Being professional electrical and electronics engineer having 5years experience in research and development field, so I an design ur circuit ASAP on different electronics software's like Protius multisim Ltspice pspi More

$300 USD in 6 days
(0 Reviews)
0.0