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Recent content by vijay satija

  1. V

    [SOLVED] current upto 2A and voltage is 12v

    no need to reduce the current for the circuit ....and more Ah that means battery discharge time is increase.....
  2. V

    C-Programming for LED Dot Matrix

    use at89c51 controller in proteus and addtional register 74164
  3. V

    Offline SMPS 16W: Post mains rectifier capacitor voltage fluctuation?

    use 1000uf capacitor
  4. V

    Is it necessary for an NMOS to satisfy Vds>=Vgs - Vth to be in saturation

    i think your old mosfet is short try a new one... or connect a resistor 10k with gate and other terminal of reistor is connect to ground ...... ur problem will solve ....
  5. V

    16 pin graphic lcd interface problem

    how to use a 16 pin graphic lcd what about keywords on lcd to search on net for data sheet
  6. V

    Help with a led matrix 8x8 problem

    then use a resisitor across a led ..... a voltage drop across resistor will help led to glow.....
  7. V

    dc dc converter step down

    u try a zener voltage regulator .....
  8. V

    Help with a led matrix 8x8 problem

    i got it when u connect led matrix led get dim ...becoz led are current operated component ....... when u connect power supply to ur ckt all the current used by controller there is no enough current in ur ckt for drive led matrix ....... there is only two solution u have to...
  9. V

    how to use bd137 transistor

    how to use bd 137 transistor as a switch for switching ac voltage
  10. V

    [SOLVED] 5*7 led matrix iddentification problem common anode or cathode

    i know what is common anode and cathode but i cant identify in led matrix by keyword written on it
  11. V

    [SOLVED] 5*7 led matrix iddentification problem common anode or cathode

    5*7 matrix is not seven segment nick703
  12. V

    [SOLVED] 5*7 led matrix iddentification problem common anode or cathode

    How to know about the common anode and common cathode of led matrix and it has 14 pin 7 upper and 7 lower what about pin description ?
  13. V

    need compact power supply for microcontroller ....

    Buck convert means
  14. V

    need compact power supply for microcontroller ....

    if i used a two charger output connected in parallel then voltage same current increase it is possible or not....... and if i connects 5v 2amp to microcontroller what happen then what happens ......damage or not....
  15. V

    need compact power supply for microcontroller ....

    i need a power supply for drive microcontroller but without transformer output need 5v 2 amp
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