5V Regulator design tutorial - How it works,
how to design PCB altium
The Engineering Mindset
This is what happens when we supply too much voltage to our
electronic components. The components will burn out and even
explode. To stop this, we need a voltage regulator. I'm going to
show you how it works, how to design one, and even turn it into a
fully working professional-looking printed circuit board to use as a
power supply and even charge a phone with it. You can even
download a copy of my circuit board from the links in the video
description below.
The purpose of a voltage regulator is to keep a constant output
voltage even when the input voltage changes. This is important
because electronic components are only rated to handle a certain
voltage. For example, if we connect an LED to a 9-volt battery, it
will be instantly destroyed. To protect the LED, we need a resistor
to reduce the current.
We need a way to ensure a constant output voltage even when
the input voltage is varied. We can use an integrated circuit
component called the LM7805. This component can maintain a
constant 5-volt DC output and up to 1.5 amps of current. It can
be connected to any DC supply voltage between 7 and 35 volts,
making it perfect for our needs.
The LM7805 has three pins: pin 1 for the unregulated voltage
input, pin 2 for ground, and pin 3 for the regulated 5-volt output.
The manufacturer recommends using capacitors on the input and
output to ensure a smooth and clean output.
We're going to be using Altium Designer to design our printed
circuit board. You can get a free trial of this software using the
link in the video description below. Once we're happy with the
design, we can order the PCB from JLC PCB, who have kindly
sponsored this video.
Building the PCB is easy. We simply lay out the components on
the board and solder them in place. After testing, we can see that
how to design PCB altium
The Engineering Mindset
This is what happens when we supply too much voltage to our
electronic components. The components will burn out and even
explode. To stop this, we need a voltage regulator. I'm going to
show you how it works, how to design one, and even turn it into a
fully working professional-looking printed circuit board to use as a
power supply and even charge a phone with it. You can even
download a copy of my circuit board from the links in the video
description below.
The purpose of a voltage regulator is to keep a constant output
voltage even when the input voltage changes. This is important
because electronic components are only rated to handle a certain
voltage. For example, if we connect an LED to a 9-volt battery, it
will be instantly destroyed. To protect the LED, we need a resistor
to reduce the current.
We need a way to ensure a constant output voltage even when
the input voltage is varied. We can use an integrated circuit
component called the LM7805. This component can maintain a
constant 5-volt DC output and up to 1.5 amps of current. It can
be connected to any DC supply voltage between 7 and 35 volts,
making it perfect for our needs.
The LM7805 has three pins: pin 1 for the unregulated voltage
input, pin 2 for ground, and pin 3 for the regulated 5-volt output.
The manufacturer recommends using capacitors on the input and
output to ensure a smooth and clean output.
We're going to be using Altium Designer to design our printed
circuit board. You can get a free trial of this software using the
link in the video description below. Once we're happy with the
design, we can order the PCB from JLC PCB, who have kindly
sponsored this video.
Building the PCB is easy. We simply lay out the components on
the board and solder them in place. After testing, we can see that
