Articles by "transistor-projects"

 how to make dc fan speed controller module

In this project we learn how to make dc fan speed controller module up to 10amp dimmer with the help of video and circuit diagram easy at home. for making this project we need some components.

Components list for 10amp dc fan dimmer:

  • NE555 IC
  • 8 PIN IC base
  • how to make dc fan speed controller
    50K VR
  • IRFZ44N
  • Heatsink
  • 1N4148 Diode (3)
  • 50V, 1000UF Capacitor
  • 1K Resistor (2)
  • 10K Resistor
  • 103c
  • 104c
  • 473c
  • PCB Board
  • Soldering wire
  • Soldering iron
now follow simple steps and make same.
  • NE555 IC has 8 pin, connect 4 number pin with 8 number pin,
  • Now connect 6 number pin with 2 number pin, 
  • 4 number pin connect with positive input wire,
  • And 1 number pin connect with negative input wire,

  • Now 1 side of 1k resistor connect with positive wire.
  • Connect 2 diode in seriate 
  • And middle point connect with 2nd side of 1k resistor.
  • Now 1st and 3rd pin of 50k variable resistor connect with 2nd side of both diodes.
  • 7 number pin connect with 2nd side of 1k resistor.
  • Now middle pin of 50k variable resistor connect with 6 number pin.
  • And 104 number capacitor connect with 6 number pin and ground wire.
  • Now 103 number capacitor connect with 5 number pin and ground wire.
  • connect 1 side of 1k resistor  with 3 number pin.
  • And 2nd side connect with 10 k resistor.
  • 2nd side of 1 k resistor connect with ground wire.
  • Now connect 1000 microfarad capacitor between positive and negative wire.
  • 1st wire of mosfet connect with 1k resistor.
  • Now 3 number pin of mosfet connect with ground wire.
  • 473 number capacitor connect with positive wire.
  • Now connect diode with positive wire and 2nd side of 473 capacitor. 
  • Second wire of mosfet connect with diode.
  • and 2nd pin of mosfet also use for negative output.
Using this circuit we can handle upto 10amp dc current. we learn it more batter with watching video.

Video of homemade 10amp dc fan dimmer


Total cost for making dc fan dimmer:

Total cost of this project is round about 1$. all components local market price detail are following

NE555 IC price = 0.13$
8 PIN IC base  = 0.03$
50K VR   = 0.13$
IRFZ44N = 0.2$
Heatsink  = 0.06$
1N4148 Diode (3)  = 0.03$/diode
50V, 1000UF Capacitor = 0.1$
1K Resistor (2) 0.01$/resistor
10K Resistor = 0.01$/ resistor
103c = 0.01$/capacitor
104c = 0.01$/capacitor
473c = 0.02$/capacitor
PCB Board = 0.2$

How to make touch switch using pnp transistor

In this video we learn How to make touch switch using pnp transistor easy step by step with circuit diagram.
homemade touch switch using bc557
How to make touch switch using pnp transistor
for making this project we need some components.

Components:

  • BC557 PNP Transistor (1)
  • 220 ohm Resistor (1)
  • LED (1)
  • 9V Battery
  • Battery clip
  • PCB Board
  • Soldering wire
  • Soldering iron

Circuit Diagram:

In this project we use bc557 PNP transistor and make a simple circuit. you can use any PNP Transistor and simple replace with bc557.
BC557 PNP transistor has 3 pin. If we see it from front side so 1st pin is collector 2nd base and 3rd is emitter. Positive side of LED connect with collector pin and negative side of LED connect with resistor. 2nd side of resistor and base pin use for touch points. emitter pin use for positive power and 2nd side of resistor also use for negative power. its very easy homemade project using few steps we learn it more better using video.


Video of  how to make touch switch using pnp transistor:


How to make touch switch using 2n2222

In this project we learn How to make touch switch using 2n2222 npn transistor easy at home easy step with circuit diagram.
How to make touch switch using 2n2222
How to make touch switch using 2n2222
in this project we use only one NPN transistor. for making this project we need some components. 


Components: 
touch switch components
touch switch components

  • 2n2222 NPN Transistor (1)
  • 220ohm Resistor (1)
  • LED (1)
  • 9V Battery
  • Battery clip
  • PCB Board
  • Soldering wire
  • Soldering iron


Circuit Diagram:

In this project we use single transistor 2n2222. and make it very easy circuit.

2n2222 NPN Transistor has 3 pin. If plain side in front then 1st pin is emitter pin. 2nd or middle pin is base and last or 3rd pin is collector pin. In this project we use base pin and positive wire use for touch point. Emitter point use for negative power. And collector use for LED. We connect one resistor 220ohm for led safety. Here you can connect any other output components like buzzer or so on.
When we touch hand on touch point then LED on. And when we remove hand then LED off.  It’s very simple homemade project with few steps.
we learn it more batter using video.

Video of How to make touch switch using 2n2222:



Easy Creative Projects

{facebook#https://web.facebook.com/easycreativeprojects/} {twitter#https://twitter.com/easycreativepro} {youtube#https://www.youtube.com/c/easycreativeprojects}

Contact Form

Name

Email *

Message *

Powered by Blogger.
Javascript DisablePlease Enable Javascript To See All Widget