Many Electronic circuit projects in simple ways of learning

Many 555 DC boost converter circuit

If friends would to want the DC to DC voltage converter is small that has a few output current.
I would suggest the IC-555 timer DC boost converter circuits is a key equipment that it is popular and easy to uses so can be used in many circuits.

Doubler voltage 12vdc to 24vdc with NE555

This be Simple Doubler Voltage circuit, from voltage 12VDC to be 24VDC. By use Timer IC highly popular the number NE555 and other equipment a little again. It can give current get about 50mA convenient for the circuit, that use low current the small-sized.
The principle works of the circuit be, When use Volt input 12VDC give with the circuit will touch Filter current smoothly with increasingly. The capacitors C5 give with IC1, The resistor R1,R2 and , capacitors C1, Which build the circuit model astable multi vibrator Square wave generator, at the frequency about 2KHz come out the way pin 3 of IC1. By have capacitors C3,C4 diode D1 and D2. Which build be boost up voltage x 2,which will enhance the level Volt out be the direct current about 24VDC or 2 times of the level Volt input.

Doubler voltage 12vdc to 24vdc with NE555

DC to DC converter using ic NE555

This circuit is called DC TO DC converter circuit.Which increase the voltage circuit.There can be customized to change the output values. For example 6Vdc to 12Vdc, 12Vdc input to 24Vdc output. When the power supply input to IC1-NE555 is the output pin 3 at a frequency of 1 kHz.The frequency is Q1-BC547 and Q2-BC557, which will continue to use push pool work interchangeably.If this is the positive output signal Q1 Q2 will run the delete function this reason, C2 and C3 capacitors are half-wave alternating.
When to use. Voltage from C2 to C3 is discharged out to the input voltage over almost two times less than 2 times due to the loss of diodes D1-D3.

9V battery changed to -5V

To test the circuit or circuits that may need some circuits, but we have no fire-5V power supply-5V, but if the battery 9V circuit can allow us to use the volt-5V as desired.
By using IC NE555, which causes wave square the sector output allows the voltage about 6V when the signal on the output from a pulse plus C2 acts charge through D1 to ground and if the pulse negative capacitor C2 will discharge. through diode D1 and capacitor C3 to chage that negative voltage is about-6V, but being removed to the number of left-5V zener diode ZD1 current output will be approximately 12mA.
9V battery changed to -5V

Negative supply voltage low current

This circuit is a negative power supply integrated. Which can be applied to circuits that do not need much flow. Using IC No. 555. The core of the circuit.
Work of the circuit is IC1, R1, R2 and C1. The range of the A Stable Multi Vibrator, and the output is a square wave. It is a positive signal pulse frequency of 2.3 kHz output pin 3 of IC1.And C3 and D1 connected to circuit CLAMP. That it serves to signal a positive pulse to pulse signal negative.The D2 and C3 act negative pulse signal is converted direct current (DCV) electrical signals. The negative power. Thus the output voltage to a negative DC electrical.
Negative supply voltage low current

Power supply positive-negative-ground from a single power supply

I like to try different circuits. Using adapters as a power source. Which it has disadvantages be it can not turn on the negative power supply.
However, this circuit can supply both positive and negative.
This circuit is used IC number NE555 set up to stable multi vibrator.It produces a frequency rectangular patch of about 100 Hz.Out to pin 3 through C3 and C4. Before the rectifier power section. Both positive and negative DC 2 series.Positive power supply will work with the rectifier D1 and D2.When a positive signal to be via D2 to the output.
Power supply positive-negative-ground from a single power supply

And filtered from C5 to filter the pressure to smooth again. But if there is negative signal to the D1 and down through the ground.The negative power of the D3 and D4 the rectifier.When a negative signal to the output signal to be via D3. And will be filtered from C6 to smooth again.When a positive signal to be via a D4 to ground.

Note: These circuits worked well as video below.

This Post Has 41 Comments

  1. Respected sir,
    i have 24 vdc how can i change in to +24vdc and -24vdc pls give me a circuit idea
    Thank you

  2. I am looking for a schematics for some extremely low power (just a few µA) 3.3 V to +/- 15 V step up NE555 circuit and would appreciate any link/tip/hint.

  3. Do you have any schematic diagram of a circuit that produces only either 4mA,8mA,12mA,16mA,or 20mA with a constant 24vdc supply?badly needed. .:-( thank u so much f u have one.

  4. push on push off

  5. Hi
    Please send me a diagram for 48vdc to 9vdc – max 500 ma
    Thank YOU

  6. The positive voltage from
    “Power supply positive-negative-ground from a single power supply” will be 15v not 9v


  8. Can give the secound circuit current about 250mA?

  9. hello,
    my requiredment are input supply 0to24v dc & output 24v dc constant to oprete the 24vdc relay so, kindly provide the ckt diagram.


  10. Hi
    My small project consist of building a circuit that supply a 48 volts lamp controlled by an astable NE555..the use : Blinking lamp on top of telecom tower.
    Thank you

  11. thanks for this schema,

  12. Dear sir,
    i need to design the power supply from input 24Vdc to +&- 15Vdc output.please send me circuit diagram if u have any or guide me.

  13. i need 5v to 24v dc converter circuit .help me

  14. sir,how to convert 5v dc to 24v dc using 555timer send me the circuit help me by sending the circuit diagram

  15. volts looks good but i need to see the amps looking for a 20amp unit???

  16. i think the second circuit has a mistake , the pnp-npn pair will make a short circuit path through
    (pnp emitter – pnp base – npn base – npn emitter)

    this can be avoided by placing a resistor at each of the two transistor bases instead of shorting them together.

  17. Can someone please send me a simple circuit for DC TO DC 12VOLTS STEP DOWN TO 3.7 VOLTS THX

  18. hi sir, for the Power supply of positive-negative-ground from a single power supply, can I use the input supply of 5v and generating +/-5v on the output side??

  19. hi in the voltage doubler circuit if i give 6v does it give out 12v

  20. Hi, vasudev
    Yes you can use but this low current about under 50mA.

  21. hello i need a circuit from 9v to 24v. 24v impulse only for one second is enough.

  22. I ask you that “when you want 24Vdc and you have 12Vdc as input you can use over current 50ma”?

  23. In the second circuit i am not able to get the actual output… Input is 12V n it is not stepping up the input.. what should i do? Plzz help me its very much urgent!

  24. What’s advantage by using 555 over using simpal two diode doubler circuit…?

  25. will it works on a current of 6 or 7 amp.

  26. I am looking for help to create simple circuyit to generate 24 vdc 24 w or less using 3 9vdc battery. Any suggestion

  27. I want build 24 vdc power output using three 9 vdc battery.

  28. hello sir

    i in need of on solution of my project.

    please give me diagram of 12 v 1amp dc power supply in which converts 3 way of 12 v 1amp power supply each.


  29. hello

    im looking for a schematic for a 20V dc to a 5V dc 1A converter switch mode power supply please.

    thank you

  30. Dear sir/medam
    we need a circuit for dc dc convertor
    in put volt 20 to 120 out put 18 volt 5 Amps

  31. 12 volt dc to convert 36 volt dc, but why did ?

  32. Hi: Do you sell the tv/radio jammer that can go through a wall (20-30) total distance? It is cable tv. My neighbour turns on his radio/tv at 0500 am every morning. It is away to loud as I do not even have my hearing aids in. How much?

  33. Hello Sir. I just want to ask how should I do with the Ground when I solder the circuit on a circuit board? Can I just simply leave it empty? Thank you.

  34. all circuits are wrong i tried practically

  35. all circuits are principal . . . they don’t with count nor apply to all input power range
    — the bad point here is that the oscillator may not successfully function at
    !! also nothing regulates the output
    . . . otherwise they’re correct
    ► the order to proceed here is ::
    • confirm your oscillator works near even duty
    • confirm the output cascade saturates
    • confirm the complement switch (transistor) closes (preferredly) just before the opposite starts conducting signifficantly !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    ( • make sure the capacitor used for switching can handle twice the input voltage and is a low ESR one )

  36. hallo sir or madam can you help me how dc dc doubler astable multivibrator work using timer

  37. Hi sir
    I need a DC relay with auxiliary contacts of different levels of voltage that act to open another circuit but the input voltage must be between 150 to 250 v

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