Tsukure Mad Labs Voltage Doubler Circuit
Voltage doubler is the circuit where we get the twice of the input voltage, like if we supply 5v voltage, we will get 10 volt at the output. Generally transformers are there to step-up or step-down the voltage, but sometimes transformers are not feasible because of their size and cost. So here is the quick, easy and practical solution to double the voltage, using 555 timer IC.
We can divide the circuit into two parts, first part consist the 555 time IC in Astable mode, to generate the square wave and second part consist 2 diodes and 2 capacitors to double the output voltage.
We have configured 555 Timer IC in Astable multivibrator mode to generate the square wave of approx. 2KHz, this frequency is decided by the resistor R1, R2 and capacitor C1. Below is he formulae for the same:
F = 1.44 / (R1+2*R2) * C1
When the output at PIN 3 of 555 IC is low, Diode D1 get forward biased and capacitor C3 get charged through the D1. Capacitor C3 get charged up to the same voltage at the source, in our case 5v.
Now when output at PIN 3 goes high, D1 get reverse biased and blocks the discharging of the capacitor C3, and at the same time D2 is forward biased and allow the capacitor C4 to charge. Now the capacitor C4 charges with the combined voltage of Capacitor C3 and the input source voltage, means 5v of capacitor C3 and 5v of input supply, so it charges up to 10v (twice the voltage of input source). But in practical we get output voltage less than the twice of input voltage, like in our case we get approx. 8.76v instead of 10v.
Components used in this module...
Find out more about the components used in this STEM Module.
Let's Get Started!
Below you will find a list of bits to gather before hand, followed by a detailed schematic. Using a breadboard lay out the components and connect them together as shown. Alternatively you can purchase this module from our shop and simply solder the components in the places indicated on the quality assured printed circuit boards provided.
What You Need...
|2||100 (10pF / 0.01nF)||Capacitor (Ceramic)|
|2||PCB Mount 2-Pin Screw Terminal Block||Connector (Other)|
|1||555 Timer||Integrated Circuit (IC)|
[ Brown, Black, Black, Red ]
|Resistor (0.25 Watt)|
[ Orange, Orange, Black, Red ]
|Resistor (0.25 Watt)|
NB: Any resistor colour codes specified relate to 5 band resistor codes, the 5th band has not been shown intentionally. The 5th band indicates the resistor tolerence, we use only the highest tolerence resistors in our products.
Sharing is Caring!
If you like this project, or maybe, know someone else that might, why not click the buttons below to share the experience!
We are building an international community of engineers, programmers, builders, makers, nerds and geeks, join in below. Ask questions about this module or perhaps share your projects and show others how you have used this information to do something kool!
We will be launching the Tsukure TV YouTube Channel very soon! Subscribe now so that you don't miss out on the BIG LAUNCH!
Just An Idea!
This project is currently just an idea, a prototype! This is how we begin our journey of discovery and welcome you to join us.
Why not have a go at making this idea into a working project.
- Tsukure Mad Labs
- Tsukure Preppers
- Tsukure Smart Garden
- Tsukure Smart Home
- Tsukure Spy
- Tsukure Studio
- Tsukure Tactical
- Tsukure Worx
Our team of engineers and coders have been busy building our own resources to allow us to improve our workflow. You too can have these resources at your disposal.Go!
- Ohm's Law Calculator
- Voltage Divider Calculator
- Resistor Color Codes
- LED Array Wizard
- LED Resistor Calculator
- Capacitor Code Calculator
- Capacitor Code Table
- Capacitor Conversion Chart
- Wire Gauge Reference Table
- Coil Inductance Tool
- Inductance Unit Convertor
- Passive Corss-Over Calculator
- 2-Way Audio Cross-Over Calculator
- 555 A-Stable Calculator
- 555 Mono-Stable Calculator
- Convert Image to XBitmap
- Make Boxes
- Make Rack Boxes
- GrabCAD 3D Models
- 3D Content Central
- Convert STEP to STL
- Autodesk Eagle Library Search
- SnapEDA Eagle Library Search
- Autodesk Library