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Recent content by Nizar_Ib

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    Knowing Server computing power

    I don't have time to test my servers. all what I need to know which server can actually serve me better in terms of running programs.
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    Knowing Server computing power

    Hi, I'm talking about running scripts based on Python and GUI's based on Java which eats a lot of memory. I don't use graphics. So it is a huge database access to "HDD and SSD".
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    Knowing Server computing power

    Hi, I've a lot of Intel servers at the company I work in, they all have Linux OS. I need to know how can I compare between servers in a aspect of computing strength. which server is better? when comparing between servers, what are the details I check?
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    Parallel Fans to same Power supply

    Hi, I connected 8 small fans (input voltage 12V and needed current is 1.8A) and two big fans (input voltage 12V and needed current is 2.4A) to 12V Power supply. when I don't limit the power supply current I get shortage. why I need to limit the current in this case?
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    How to avoid ripples at the out of the regulator

    How to avoid ripples on the regulator output voltage Hi, when my regulator is not connected to the circuit I have a pure output voltage, but when connectiong it to the circuit below I have ripples on the output which confuse the VGs of the FET's and affects the current throw them. why that...
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    DC Electronic Loads with digital control?

    Re: DC Electronic Loads with digiral ciontrol? my shunt is 0.35 mOhm and I'm driving 38A in my circuit (100 is the maximum the FET can use). so the power on shunt is (38^2)*0.35/1000~0.5W where all the power dissipation is on the FET. I'm using two parallet FET so each FET can drive 16A (if...
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    DC Electronic Loads with digital control?

    Re: DC Electronic Loads with digiral ciontrol? Hi, I'm working on the same concept, two paraller mosfet's operating as a load. I solved the thermal issue with a good heatsink and a strong fan. but I face another issue here, I've made 10 channels for testing 10 power supplies, 3 out of the 10...
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    Mosfet drain-source voltage

    in my circuit the "Vgs" is a regulator. where sould I connect the negative side? directly to the source of the FET or to the ground of the circuit?
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    Mosfet drain-source voltage

    I'm talking about a real circuit. when I have voltage on Vgs I get voltage where you see V12, I measure it by DMM.
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    Mosfet drain-source voltage

    Hi, sorry, here is my original circuit: - - - Updated - - - a VS is a power supply which I want to test.
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    Mosfet drain-source voltage

    Hi, I have the circuit below, when I have voltage on gate-source (~4.3V) I get voltage (~2-4V) on V12 (drain source). why that happened? I don't face this issue on another circuits with same parameters. I have 12 circuits near each other, are totally separated from each other. in another way of...
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    which Wireless Communication Protocol should I use?

    So it is WIFI, thanks. now, what about longer ranges? I heard about GPRS and GSM.. how do they work? are they free to use?
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    which Wireless Communication Protocol should I use?

    Hi, I'm not familiar with IoT but I want to make a small project, includes two systems communicating with each other wirelessly, I'm talking about a range of 200-300 meter Which protocol can I use here? started out from the assumption that I have enough power on the two PCB's.
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    Need help understanding volume controls on a bluetooth board.

    can you look at the biggest components on the board and read the OPN there? you can make a picture and upload it to here so maybe we can help you.
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    Need help understanding volume controls on a bluetooth board.

    All what you need to do is to open the datasheet of the Audio Receiver chip on your board and look at the pins description of it, then see how things works.

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