Realize the voltage divider To whom is addressed this course?
This course is addressed to all beginners in electronics and to everyone who wants to make themselves a first electronic assembly even without special knowledge. Anyone from 7 to 77 years old who wants to develop an easy electrical installation, can follow different tutorial in order to bridge a voltage divider.
Each of the steps and things to know are explained in these small streams. Certainly, for those who know a little electronic it can seem a bit too simple, but it is sufficiently explained so that people will be lost.
Installation will be done
The assembly will be carried out is a voltage divider. Now I invite you to consult the electronic course that presents the basics of electronics and in which there is a small course on the voltage divider.
It should be known that the assembly uses only two resistors and is in the following form:
Interest of this assembly
Depending on the value of the resistors which are used, the voltage "Va" may change its value.Anyway it is always less than or equal to the input voltage is Vcc.
This type of assembly can be useful on days when you need to use a 5V power source so that you have a 9V battery on hand.
Consulting the course presents the basics of electronics, you can discover the formula for determining the value of the output voltage of this circuit. Using this formula, it is possible to calculate the voltage is halved when both resistors are of equal value (do the math with two 10k resistor you will see)
Equipment to use
This first short course will explain all equipment necessary to develop the assembly of the voltagedivider. This will start slowly and get everyone on the same footing. In fact, some do not have the basic equipment, it is therefore necessary to make a short briefing on what to have (or what to buy).
It can be classified into two categories all objects necessary:
The electronics equipment (cutting pliers, multimeter ...)
The components required for assembly (9V battery, resistance, ...)
I will classify all objects using these categories in the following paragraphs.
List of useful material to an electronics
Breadboard
The test plate was not always known electronics beginner, yet it is an indispensable tool once you have want to make small edits. Through a test plate it is possible to make a mounting without having to create a printed circuit.
In our case, the test plate will allow to place the components in order to meet the mounting scheme.Cutting Pliers
The wire cutter is extremely important in the world of electronics. Whenever it is necessary to cut a component tab that exceeds or to cut a wire, we are delighted to have this tool.
To make a voltage divider, we will need pliers to cut a wire and eventually cut the legs of resistance (see this earlier).Stripper
In the series of clips, there is also the strip clamp which has utility whenever it is necessary to use a wire. Generally son it possible to connect two points, but they are sheathed and enables this clamp to strip a portion of the wire rather easily.
You will see later, that to do things well I would recommend that you use a wire. It faudrat the stripper, so this tool will be useful.Multimeter
Finally, I recommend to any self-respecting electronics to have a multimeter. It is essential to test a track, know a voltage level, namely the exact value of a resistor, ...
For this arrangement, the meter will servire you to check the voltage level in and output of the divider bridge.List of components for assembly of a voltage divider
9 volt battery
In general, an electronic circuit exists because there is a voltage source. The battery nine voltthen finds are useful whether to perform a small easy assembly.
For our installation, I recommend using a 9V battery, but it is also possible to use another battery.The only problem is that you must find a good connection if you want to own something.9V battery connector
I recommend you to use a 9v battery connector of this type to make this assembly. This is quite useful because the son can be connected to the test plate easily.
You will easily notice that it may have to denude the son (hence the usefulness of the stripper).2 resistors
The heart of this circuit lies in the resistances. It should have at least two resistors in order to realize this arrangement. For example, I use two resistors of 10k ohms.
You can make this arrangement with resistors of other values. A you to adapt according to your desire (or resistance that you have on hand).A wire
Finally, I recommend using a piece of wire in order to make a connection. It is however not compulsory, but by using your editing will be more aesthetic and you take directly from good habit.
In this example this thread is black, but you can use a piece of wire of another color if you wish.Be careful on the choice of the wireBe careful when you buy the phone. Do not purchase anything.
There are generally two types of wire rule: the monofilament and multifilament. For our purposes I suggest you wire monofilament. You will see the difference in the stripping:
Stranded wire: a inside there are plenty of small wire that forms a thick wire. The problem is it's hard to be pressed on the test plate.
Single wires: a reverse of the stranded, there is only one wire inside. It is therefore much easier to implement on the test plate.Also check the diameter of the son you buy (especially when ordering on the internet to avoid nasty surprises).
Realize the voltage divider
This course allows for once and for all the assembly of the divider bridge. It explains step by step the connections needed to develop this assembly, beginners will be able to understand the methodology to perform when creating an assembly.
Mounting Reminder
To remember, I give you a second time to the arrangement needed to create the electronic assembly:
Place components
It was explained in a previous lesson that the sources of tension must be logged in to vertically arranged on the left side of your test plate. Depending on the type of plate to test you bought, it can obviously changed (normally there are special anotation symbolized by "+" and "-" and then by "Vcc" and "GND").
I suggest you start the resistors on the plate to try to respect the wiring diagram. Be aware that the voltage sources are usually placed after all the editing is operational if mishandling have been made, it avoids making bétisses.
Below are the steps I recommend you follow to successfully set up this installation:
Place the first resistance: To save a thread, you can plug one leg of the first resistor, directly on the vertical left tidy. The second leg must be connected to another tidy: connect there at any other stored horizontally.
Place the second resistance: The first leg should be connected to the same ranked as the second leg of the first resistor (or so it takes a wire to connect the two legs). Once that is done I suggest you plugged the remaining leg on a free tidy.
Liaise with the mass:
Take a small single wires and stripping of about 5 to 7mm.
Insert one end of the wire on the vertical stowed symbolized by a "-" (it symbolizes the common ground).
Insert the second part of the wire on the second leg of the second resistor.
Add the voltage source:
Strip the son of the 9V battery connector for about 5 to 7 mm.
Connect the 9V battery to its connector
Insert the red wire connector on the vertical row of the test plate symbolized by a "+".
Insert the black wire connector on the vertical row of the test plate symbolized by a "-".
If you have successfully connected properly fitting, I congratulated you. Anyway, here is a little photo editing like that you must have:
Correspondence with thediagram
I wish to recall that this assembly is exactly the same as the figure given at the beginning of the course. For those who have trouble seeing the correspondence, I am a little explanation with the previous picture. I highlighted the different son in a lively picture:
Red part: Wire which corresponds to the voltage source. For correspondence with the scheme, it is possible to say that the red wire is "Vcc".
Green Party: This is the output of the scheme. It is from this place that there Va. In other words, the new tension that is created is available at this location.
Party blue: All that part that is equivalent to the mass.