Create a new electronics design schematic

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Create a new electronics design. Schematic.

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After completing this video, you'll be able to

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create a new electronics design.

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Create a new schematic, connect symbols with nets and edit symbol values

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in fusion.

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We wanna begin by creating a new electronics design by

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going to our file menu and selecting new electronics design.

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The new electronics design is a container for our schematic and our PC B.

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There are more elements of an electronics design such as the three DPC B.

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But these are the two main items that we need in order to build and design our PC B.

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We want to get started by saving this,

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making sure that we have a correct project location

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and I'm gonna call mine the PC B module.

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Once we have this container saved, we're gonna select new schematic.

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The schematic is gonna be our two D blueprint of all of

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the different components that go into our design and how they're connected.

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We'll take this two D schematic and we'll move

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it into our two DPC B or printed circuit board

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that will define the physical size and location of all

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of the various components and how they're connected together.

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But before we get into that, we need to talk a little bit about the user interface.

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When you first come into a fusion electronics design,

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the user interface is likely set to a stack.

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Now,

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this means that all of our tools are stacked above each other in the left hand side

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and we can collapse and expand this as needed.

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But it's generally easier for us to right click and convert this to tabs.

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The tab interface gives us a lot more room to work in each of these menus.

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Noting that we can only really see one at a time.

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But for example, when we're placing components,

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having a larger list of components is much easier for us to traverse.

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Rather than looking at a shortened version in the stack setup.

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On the right hand side,

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the inspector and selection filters can be collapsed

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to give us a little bit more working room

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and we can expand them whenever we need

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to access information about selected symbols or components.

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Also, let's note that our view section has grid settings.

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And by default, we're working on a 0.1 inch or 2.54 millimeter grid

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inside this menu. We can also toggle on or off the grid settings.

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If this helps you during your layout process.

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For our video, we're going to turn this off using the default settings.

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The last thing that we want to note is in our user preferences

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inside of our user preferences.

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For electronics, we can set the schematic to a dark theme.

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And by default, we can see the PC B is set to dark,

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but we can also switch that to a light theme

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for our video.

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We're gonna focus on using the default settings leaving this as a light theme.

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But note if you're more comfortable working in a dark theme, you can switch yours

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now that we have that basic introduction to the U I.

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Let's talk about what we're designing.

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We're gonna be building a simple device with a

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voltage regulator to convert 12 volts to five volts.

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We'll add an led to the design to make sure we know when it's powered up

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and we'll be using two NPN transistors.

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So that way we can have 12 volt inputs and

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then we can have a five volt output registered.

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So that way we can use a micro controller to read whether or not we've got a signal.

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So this basic board is going to allow us

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to explore the creation process of using through hole components

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to get started. We first want to add our voltage regulator.

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So we're gonna navigate to all libraries and focus just on IC Power Management.

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This will reshuffle the list that we see inside of our place components, dialogue

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only giving us the information that's inside of our IC Power Management Library.

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We're gonna be using the LD 1117

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and note the drop down arrow on the right hand side

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tells us that there are multiple variants or package sizes available.

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There is a surface mounted version in an SOT 22 3

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and we also have a to 220

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because we're building a through hole board.

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We want to make sure that we do grab the through hole or to 220.

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We're gonna drag this onto the screen and then we're

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gonna place this in the upper left hand area.

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Remember that this is our blueprint or schematic that's going to allow us

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to define all of the components we need and how they connect together.

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We're going to navigate back to all libraries.

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And for the next component, we're simply going to use the filter option.

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In this case, we want to look for an NPN transistor.

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We're gonna note that we have multiple package options and we

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want to make sure that we're using the to 92.

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We're gonna drag this onto the screen

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and we need two NPN transistors.

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I'm gonna place one here and another one down into the right.

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Making sure that everything is easy to access and that we don't

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have everything too close together is an important step in this process,

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making sure it's clean and easy to see.

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The next thing that we want to add is going to be our led.

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I'm gonna type in led.

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And as we look through this list,

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notice that some of these led s are coming from our led library.

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While others are showing up in IC Power Management, for example,

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we want to find led

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and then in our drop down list, we want to take a look at the various package options.

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Now, as we scroll through, if we don't see the correct package option,

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we need to make sure that we move on and we find the correct led that we need.

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In this case, I'm gonna change the filter

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and I'm gonna turn off the all libraries looking just in the led library.

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Now, as we look in the led library,

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we're going to go to our drop down list and just

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take a look at the package options that we have.

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In

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this case, we want to use a round five millimeter led and

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we're going to drag this onto the screen

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using our right mouse to rotate it 90 degrees

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and we'll place it in the upper right hand corner.

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Next, we want to add a few connectors.

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The connectors are gonna be in our connector library

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and we want to use what's called AJ ST connector.

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And once we look through the JST list,

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note that there are several here and navigating through the various options will

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help you identify the different nomenclature

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in the component descriptions and names.

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Now, we're looking for a four pin connector.

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So we're going to select the B four B version

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noting that there are no other variants or other options.

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So we'll drag this into the screen.

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We're gonna place one of them on the right hand side and then we'll use the

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middle mouse button to mirror this and place the other one on the left hand side

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and select done or hit escape on the keyboard.

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We still need to add a couple of resistors as well as power and ground symbols.

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So for this, we'll clear out our filter, go back to all libraries

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and we want to start by selecting V plus.

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Now V plus is our voltage and we're gonna drag this onto the screen,

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placing one above our left hand JST connector giving it the 12 V value.

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And then we're gonna place a second one here right next to our voltage regulator,

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we'll hit escape.

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And the next thing we want to look for is ground.

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We're gonna use GND.

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We'll select the first ground from our tutorial library.

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We'll drag it onto the screen and we'll place it here

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giving it a value of GND.

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Then we're gonna ground our voltage regulator.

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We're gonna ground each one of the transistors and we also need to ground our led.

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We'll place a ground symbol over here and our output connector.

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The next thing we need are a couple of resistors.

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Now, the resistors can be found a few different ways.

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These are going to be in our tutorial library and

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I'm gonna search for them by using R dash us

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for R dash us. Notice on the right hand side, we have a couple of options.

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There are two through hole resistors here and

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we're gonna be picking the 7.2 millimeter pitch.

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We're gonna drag this onto the screen.

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We're gonna have a resistor for the input of the first NPN transistor.

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The input for the second,

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we're gonna have one for our led

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and then we're going to use the right click to rotate our resistor.

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We're going to place one above this NPN transistor leaving a little

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bit of space and one above this one here as well.

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Hitting escape to get off of our tool.

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Now that we've got everything placed on the screen,

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we can begin connecting them together with what's called a net

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on their connect menu.

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We'll select net or use R on the keyboard and we'll start by

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selecting and placing a net between our JST connector and 12 volts.

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We'll do the same thing over here for our voltage input to our voltage regulator.

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And then we'll also connect our ground

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as we take a look at some of these other components.

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We're gonna go from PIN two on our JST.

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We're gonna left click to have a jog in our net and then we're gonna left click again

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to place it as our first resistor.

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We're gonna do the same thing over here keeping everything fairly similar.

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We left click and then we'll click here to end that one.

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We're gonna connect the resistors to the top of our NPN transistors,

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we'll connect our ground,

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we'll go from our led to ground

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and then we need to go from our voltage output on our voltage regulator

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all the way over to our third resistor for our led.

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And then we're going to have a couple of points where we come off of this,

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of our five volts

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will come down

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and we'll take this five volts directly into this resistor

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will come down and take it into this resistor.

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And then we also need to take it out to pin one.

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So just to the right, we'll go down

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and we'll work our way over to pin one.

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Also note that we need to pull voltage between the resistor and the NPN transistor

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because we are using this as somewhat of a switch or switching between ground.

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So when the voltage goes low, we know that we have a signal on the input side.

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So we're gonna connect from here to pin three

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and we need to do the same thing for this one here.

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Now, everything so far has been fairly easy to connect and clean,

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but now we need to jump a few wires.

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What we're gonna do is we're gonna make our way straight across

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left click and make our way down. We left click again and over to pin two,

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we're going to hit escape. And now everything has been connected

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oftentimes when we begin to lay out a schematic,

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it can be very easy to get things in a situation where

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we have a lot of points that are jumping over other nets.

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You want to make sure as you look at your own schematic that the green dots

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or intersection points are only where you need

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your nets to be connected to other nets.

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You can reposition these at any point in time, moving symbols

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and moving nets around just to make things a little bit more clean and easy to read.

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Now that we have everything laid out.

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The last step in our process is to define the values for our resistors.

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We can do this a couple of different ways.

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But the main option that we're gonna take a look at is

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under modify and selecting value or using V on the shortcut keys.

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We're gonna select the first resistor and we're gonna give this a value of one K

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we're gonna select OK.

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And we'll do the same thing for R two giving this a value of one K.

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The next one that we wanna select is R four and this one is gonna be 4.7 K.

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We're gonna select R five. This will also be 4.7 K

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and R three is gonna be 100 and 20 ohms.

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This is gonna allow us to add and store those values on each of those components.

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So that way when they're shown on a parts list or a bill of materials,

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when we manufacture a board,

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we'll know exactly which resistor gets which value.

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Note that we can expand the inspector,

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we're gonna hit escape to get off of a value tool and select resistor three.

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Notice that when we select resistor three, it's shown as the name R three

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and it shows its component and all the way in the bottom, it shows its value

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inside of this value category. We could also make changes to its overall value.

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If we wish. In

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this case, we want to leave it at 100 and 20 ohms.

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But the inspector is a great way to

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also add additional detail such as changing the name

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or some of the description or properties of various components.

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Not all values can be changed and not all components

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or symbols will have available options to change those values.

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You can push or override some values if you wish.

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But in most cases,

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resistors and capacitors are going to be main

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components that you are adding those values to

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at this point. Let's make sure that we have saved our schematic.

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We're going to call this one, our PC B

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module schematic.

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And once this is saved, we can go ahead and move on to our next step.