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Recent content by lordmag

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    Ad620 input protection

    IN THE AD620 DATASHEET : INPUT PROTECTION The AD620 safely withstands an input current of ±60 mA for several hours at room temperature. This is true for all gains and power on and off, which is useful if the signal source and amplifier are powered separately. For longer time periods, the...
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    Ad620 input protection

    Look at this circuit
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    Ad620 input protection

    look at this circuit when A contact is on we dont have any probelem in prtoection but when it s off U_ contact = 13,5 V > supply 12 V so there what is hapening ??**broken link removed**
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    Ad620 input protection

    hi , any one can explain for me this type of ad620 amplifier protection !!! i' m using 1N4148 diode
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    Pic18f4550 + usb_cdc+ pic c

    I need help !!!!
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    Pic18f4550 + usb_cdc+ pic c

    the isis circuit ESSAI1 THE pic c code ESSAI3
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    Pic18f4550 + usb_cdc+ pic c

    this is my code pic c #define __USB_PIC_PERIF__ 1 #if !defined(__PCH__) #error USB CDC Library requires PIC18 #endif #if __USB_PIC_PERIF__ #DEFINE LED1 PIN_A1 #include <18F4550.h> #fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN //#fuses...
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    Pic18f4550 + usb_cdc+ pic c

    HI My project objective is to simulate the statue of contact which are the input of the 18F4550 pic my input contact will from D0_pin to E2_pin so that i want to build a sequence of bits or a charactere like 100011001 and send it to the PC from the USB connector 1= contact close 0= contact...
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    Ad620 input protection

    1) in my application the amplifier output voltage must be < 10 V so that my supply should be <= 10V 2) haw can i choose the resistance R1 and R2 ??
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    Ad620 input protection

    in the ad620 datasheet the max differential input is 25 V so i want t o make protection for my input amplifier what do you think about this circuit is that the right one ?
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    Ad620 input protection

    my application is that i want to measure the VOLTAGE of a contact RESISTANCE like what we see in the attach
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    Ad620 input protection

    i m using AD 620 an instrumental amplifier in my application sometime the input differential voltage can be 27V but in AD620 datasheet the max input differential voltage must be 25 V so that i want to use diode to protect or to limit my input voltage as the supply voltage like what we see...
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    which differential amplifier can i use to amplify a low voltage input

    thanks so can you propose me which resistor shunt can i use in this schematic :) i m still newbie at electronic circuit :/
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    which differential amplifier can i use to amplify a low voltage input

    - Vs2 must be between [2V to 10 V]
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    which differential amplifier can i use to amplify a low voltage input

    hi , here i want to measure the current Im by using a shunt resistor with low value to have this measure i should amplify the voltage between this shunt resistor so we have a low differential input voltage In my application system the output voltage must be between [2v , 10v] so which...
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