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Recent content by Afzal Hossain Khan

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    [Moved] 5v to 4v buck converter

    Hello, Recently I'm designing a circuit where I need 4v and 2A to operate my circuit.My input range is 5V - 12V. I need a smps which can convert 5v to 4v and remain 2A current for the circuit.I used lm2576 , but when the input voltage is bellow 6v , It cant provide 2A current .Please suggest me...
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    Micro sd card simulation with proteus

    Hi, I want to simulate 1GB micro sd card interfaced with avr by Proteus.while I've tried to configure mmc properties there the maximum limit is 128 MB.I've made image file using usb image tool.I've formatted the sd card to fat32 .I 've selected 128MB (maximum) from mmc properties to simulate...
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    gps accuracy,gps module performance

    Hi, I'm working with GPS module for VTS since long time and the lack of accuracy of these modules is very much embarrassing. I used gps module from simcom and quectel . Last time I've used L50 from Quectel which is Sirf IV and I'm still facing the same problem.Some one please suggest me to get...
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    AVR studio VS Win Avr

    Hello not- a -moderator, Thank your information.My problem is out of these documentation.According to AVR GCC if i use PROGMEM to save data in flash it will work .My problem is that if I use winAVR every thing is okay. In case of avrstudio 5 all data are saved in ram as well ROM at start up of...
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    AVR studio VS Win Avr

    Hi, Recently I am working with avr studio 5 and I've completed my previous projects with win avr.I know these both use the same compiler which is GCC tool chain.But recently I've noticed a violent difference between them. In case of saving data to ROM I use const unsigned char...
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    dsPic30f4011 programming problem

    I've powered the mcu externally and voltage range is > 4.6 . actually I've supplied 4.9v. now its working . thank you .
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    dsPic30f4011 programming problem

    thank you BigDog. Now I can re - program code protected pic.
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    dsPic30f4011 programming problem

    Hi BigDog, That means it is not possible for me to erase he entire general code segment with pickit2 ? I tried to erase by pickit2 but it didn't work.
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    dsPic30f4011 programming problem

    Hi, I've used pickit2 to programme my dspic30f4011 mcu.I've enabled write protection feature and now i need to re-programme those mcu.I use mplab c30 compilar.I'm not being able to re-programme.Please help me to get around this problem.
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    3.7v lithium-ion battery charger

    Hi, Please Any body suggest me a hand solder-able and easy to use 3.7V(1100~1500maH) lithium-ion battery charger ic . Most of the charger ics are too tiny to solder.
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    Programing avr using AVR Burn-0-Mat(usbasp)

    Hi alexan_e, Thank you very much.Now I can program lock bit.
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    Programing avr using AVR Burn-0-Mat(usbasp)

    Hi alexan_e, I've tried to find out the option to program lock bit following your link .but I haven't find any thing.please help me.
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    Programing avr using AVR Burn-0-Mat(usbasp)

    Hi, Is there ant way to program lock bit of avr mcu using AVR Burn-o-Mat(usbasp). Please some one help me to get around this problem.
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    adj mv range supply ic

    hi, For my project I need a voltage source where I can set voltage from 1mv to 20 mv as I want.I need a voltage supply which is capable to supply 1mv to 20mv.please some on help to get around this problem.
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    sleep problem of dspic30f4011.

    Hi, please some one explain me why micro controller get restarted after waking up from sleep.I'm using dspic30f4011 for my purpose and using watchdog timer to wake up mcu from sleep.data sheet says" If FSCM is not enabled, then the device simply suspends execution of code until the clock is...
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