login
faizanbrohi
-
Posts
203 -
Joined
-
Last visited
Never
Content Type
Profiles
Forums
Events
Posts posted by faizanbrohi
-
-
And we can also cascade it
-
So increase the number of channels per output .
-
so for a class D Amplfier we would consider increasing the current first , as it is done in this project.and then add a transformer , or vice versa
-
One more thing , can not we change the wave shape of square wave 220V AC to sin ewave
-
Forget about the complication , how can we paractically implement it in Class D amplifier , and if not , can we run computer on a square wave
-
Now Can we use a Sine wave oscillator instead of a square wave osicllator , this would increase performance for runnning systems that need sine waves ..
??? -
i have a question how can we implement negative voltages in this power supply , i mean +-30V , do we have to build another unit for negative voltage ,
-
A switching Class D AMplfier is hard to make , is it no other idea to use any other type of amplfier.
-
So are there any ideas for a switching amplifer and how is it to be interfaced with my oscillator idea... and the transformer one..
-
ok i get it , it heats more at the oscillator stage , but it can be a way to tackle it good ....
-
I think you don't get the point i am saying if use a ordinary sine wave oscillator and then attach it to a Step up trasformer , that is it
-
i have another idea why use a power amplifier ;D
Generate a Sine wave oscillator and then use a transformer simply to step up the Signal of 10V to 220V , i mean as simple as it gets . Beacuse since the 10V is an AC SIgnal. But as simple as it is , the Current Rating of the oscillator should be very high . so we can make a sinewave oscillator using power transistors with high current ratings , or power op amps .
plz reply if it is correct ??? -
THere is an idea in my mind which i want to ask if it is applicable or not. THe Idea is to create a SInewave Oscillator , amplify the sine wave signal and that it reaches a 220V P-P ,
Sine wave oscillator --> Class A Amplfier --> 220V Sine wave AC Signal
The only thing i don't know is how the amp need to be designed or even if this idea is correct -
I am also interested in this project , balong please hurry and send the PCB layout and schematics man.. i was actually trying to do it with a more easier approach , using FM band and then using carrier audio signals of range 1Khz to 10Khz at the transmitting end and filters at the recieving end to filter those frequencies using a frequency filter of the particular range. however this is just and idea of my project that i am trying to build... not tested. For Transmitter i intend to use TX-500 Transmitter which is a 1/2 Watt transmitter and has a decent range. and reciever i use a commercial Radio kit which costs around 1.2$ with amazingly great sensetivity , using a Sony SMD AM/FM Radio chip ..
-
HEllo everyone , i would jus like to confirm that if the Eagle Version of the voltmeter is correct to build , because i need acurracy. i am trying to build a digital voltmeter so i can attach it to a LM2907 Frequency to Voltmeter Converter , and measure frequencies on the range of 1hZ till 10Khz . although i can also use low pass , band pass and high pass filters for frequency to voltage conversions, then again does the meter has milivolt range and is it that accurate... if this project is complete a higher VHF Filter can be used to measure VHF Frequencies
-
I have got 2NU41 Rectifier Diodes , will it work on 6A or not , i am talking about the power supply. I have seen the graph in the datasheet and it has high current ratings
-
Hello Everyone , i have a query . The BDW84D BDW83D darlington pairs were really hard to find but luckily i found them. i am wondering if we can use substitute parts for the BDW84D and BDW83D , which are available like BDW84A and BDW83A is really easy to find and even BDW84D is easy to find . So my question is that is there a substitute for BDW84D and BDW83D.
one more thing i am remaking the inductr and this time winding it on another resistor of 1W with smaller length , i will send some pictures soon of the inductor and the darlington transistors i found also... -
Audioguru i have compared the 1W resistor diameter with the modern one also , the diameter is actually the same ... but the difference is its length... and ofcourse we
are only interested in the diameter... -
The resistor is surely 1W but it is just a little longer thats all , does the length of it effects anything , because you just need the dia of a 1W resistor of any value.
-
I Know About the 1ohm resistor , i have not fully assembled the project , i am just asking if the inductor is wound right.
-
Here are the pictures (only of inductor ) . you might see that the project is not fully assembled. but just see the inductor wound around 10 turns of 24SWG(0.55mm) copper wire.
-
Hello , Everyone i build this project but because of the two wrong darlingtons , i bought BDW84A and BDW83A and a little inconsistance i am building it again.
i want to just confirm that i have wound the inductor 10 turns on 1W resistor of 1.5Kohm i found from my electronics junk and the wire is 24SWG copper wire enamel coated (24SWG = 0.55mm). i will send some pictures of it so please see audioguru if i have done the right thing . -
Can you Tell Me the Theory behind this Audio Amplifier . plzzz
-
Who is this member you are talking about audioguru that has replacements
0-30 Vdc Stabilized Power Supply
in Projects Q/A
Posted
I did not know about the changings , i bought all the parts that were written , and i have found them with the exact rating , so should i buy again ... :-[