Reader Interactions


  1. Cloud Chakanyuka says

    I am not understanding where the frequency, F appears on the NE555 chip. Is it within the chip or at the terminal 3. you can also explain who the switching frequency on the mosfet is achieve to finally have a 220V, 50Hz output on a grid tie solar inverter.

  2. pete says

    I am looking at making a circuit that will be off for 30 seconds then on for 10 minutes when power is applied to the circuit

  3. rami says

    hello sir
    iam sorry for language
    but i need timer used for home
    off about 20 minute and on about 1 minute and repeat it

  4. Dare Diamond says

    I need a 555 Pulse Generator Circuit with independent dynamics in both frequency and duty cycle i.e as I adjust the potentiometer one, it must not affect the other. Also the duty cycle should be from 0% to 100%.

    Could you please help me with one?

  5. Rizwan says

    Swag sir…
    How i find the 1000uF capacitor with 25V ?

  6. A. K. GOEL says

    I want to make a low high cut out circuit using relays for 12 v0lt car battery using IC or Transistor

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