
faizanbrohi
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Everything posted by faizanbrohi
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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 ... :-[
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And we can also cascade it
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So increase the number of channels per output .
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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
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One more thing , can not we change the wave shape of square wave 220V AC to sin ewave
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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
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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 .. ???
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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 ,
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12 V DC to a 220V AC Inverter AMplfier Design
faizanbrohi replied to faizanbrohi's topic in Electronic Projects Design/Ideas
A switching Class D AMplfier is hard to make , is it no other idea to use any other type of amplfier. -
12 V DC to a 220V AC Inverter AMplfier Design
faizanbrohi replied to faizanbrohi's topic in Electronic Projects Design/Ideas
So are there any ideas for a switching amplifer and how is it to be interfaced with my oscillator idea... and the transformer one.. -
12 V DC to a 220V AC Inverter AMplfier Design
faizanbrohi replied to faizanbrohi's topic in Electronic Projects Design/Ideas
ok i get it , it heats more at the oscillator stage , but it can be a way to tackle it good .... -
12 V DC to a 220V AC Inverter AMplfier Design
faizanbrohi replied to faizanbrohi's topic in Electronic Projects Design/Ideas
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 -
12 V DC to a 220V AC Inverter AMplfier Design
faizanbrohi replied to faizanbrohi's topic in Electronic Projects Design/Ideas
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
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wireless transmit & receive data
faizanbrohi replied to abt4s's topic in Electronic Projects Design/Ideas
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
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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
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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...
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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...
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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.
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I Know About the 1ohm resistor , i have not fully assembled the project , i am just asking if the inductor is wound right.
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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.
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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 .
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Can you Tell Me the Theory behind this Audio Amplifier . plzzz
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Who is this member you are talking about audioguru that has replacements