Tsukure Mad Labs 12V to 9V Power Convertor

This is a project of a simple 12V to 9V converter circuit. This DC to DC converter circuit can be used to convert any 12V DC source to 9V DC. The circuit can also be used to step down or convert any 12 volt battery power to 9 volt such as car battery. The heart of the circuit is a LM7809 IC. LM7809 is a fixed voltage regulator IC performs DC to DC step down converter tasks in electronic circuits. The IC has a lot of built in features like thermal shutdown, short circuit protection and safe operating area protection.

LM7809 is a IC of LM78xx series all the ICs in this series are made for different fixed output voltages (for example LM7809 IC which is used in this circuit is made for 9 volt fix output, while LM7805 produces 5 volts). These type of ICs are commonly used in regulated power supply circuits.

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...


1 0.1uF (100nF) Capacitor (Polarized)
1 1000uF Capacitor (Polarized)
1 10uF Capacitor (Polarized)
1 1uF Capacitor (Polarized)
1 LM7809 Voltage Regulator

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.


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Just An Idea!

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