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Recent content by ahmedmedowahdan

  1. A

    how can i use this sensor to measure distance using atmega328p

    i want to measure distance with this circuit configuration relay will be always open when something is in front sensor
  2. A

    how can i use this sensor to measure distance using atmega328p

    **broken link removed**
  3. A

    DC-DC converter urgent help

    please suggest me suitable inductor from digikey or rs component Lmin=150 uh max current =10 A
  4. A

    Dc-Dc Buck converter

    ???????????????????
  5. A

    Dc-Dc Buck converter

    please give me a schematic of connecting diode ? i try motor with my h-bridge circuit what have four diode but have no effect?
  6. A

    Dc-Dc Buck converter

    thanks for every one helped me, i reach a good level of my circuit design i have 2 problems : 1- how can i achieve constanst voltage at no load like lm2576 switch mode regulator 2- when motor start alot of noise appear at chooper output and it become difficult to achieve desired voltage as fast...
  7. A

    DC-DC converter urgent help

    hi, this my pwm image ,it's 100 khz , is it normal? it has alot of noise
  8. A

    DC (0-10V) input signal and isolation

    if i have only one voltage source what is the suitable method for isolation
  9. A

    how to use pulse trnsformer

    please help >>> i connect pulse transformer as my schematic before but i have no output another problem >> how i connect feedback for LM2576??
  10. A

    how to use pulse trnsformer

    thanks for this paper but ican't find what I am looking for it's flyback circuit in page 55??
  11. A

    Dc-Dc Buck converter

    it's LM2576-hv regulator circuit.
  12. A

    Dc-Dc Buck converter

    already i send value of output voltage on serial and micro restart when i connect it to the same supply of the circuit
  13. A

    how to use pulse trnsformer

    i want to separate microcontroller input voltage (5v) from the circuit i use lm2576 switch mode regulator to achieve 5 v from 48 volt i don't know how to use pulse trnsformer to achieve this isolation i think it may be like this **broken link removed**
  14. A

    Dc-Dc Buck converter

    frequency between 10k and 200k as i drive buck converter for dc motor control micricontroller restart several times
  15. A

    Dc-Dc Buck converter

    i need away to isolate between microcontroller and circuit >>> i have on source so one ground of all circuit so i can't use optocoupler
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