0:00
Okay, this is the demonstration video for the power supply circuit for our DIY 3220 point breadboard project
0:09
As you can see here, I have our prototype circuit set up here
0:15
I'm not going to go over all of the components here in this video
0:20
This is just going to be a demonstration video on how it works. You can see the details for this prototype circuit at our website
0:30
at motbots.com. But what I will mention here is, starting from the far left here
0:38
we have our 12-volt DC input here from a 12-volt charge adapter
0:47
that's currently plugged in. And here we have two switches. This switch here will represent switch number one
1:00
and this switch here will represent switch number two, as you could see from the given schematics that you can obtain for this circuit
1:11
at our website at mopbots.com. So again, this is switch one and this is switch two
1:17
This yellow binding post will be our six-bolt output. This blue binding post will be our nine-volt output
1:28
And then this red and green, binding post is the input for the bench top power supply that's off camera here and I currently have
1:42
my bench top power supply at 12 volts so that feed comes into these two binding posts this is
1:50
the positive and this is the negative and then I have a jumper wire here that represents
1:59
the output jumper wire from the bench top power supply
2:09
So if you were to look at the schematics shown at motbots for this project this jumper wire here represents the pin connector wire to the positive supply of the breadboard and that supply comes from the bench top power supply
2:32
So this would be that positive supply that you could plug into your power rails on your breadboard
2:43
So I have these two multimeters here. This multimeter here is connected to the bench top power supply output
2:53
I have the negative to the common ground. and then the positive is connected to this output jumper wire here
3:03
And then I'll be using this multimeter here to make measurements for the 6 and 9 bolt output later
3:15
So if I take switch 1 here, switch 1 controls whether or not we're using the supply from the 12 volt charge adapter
3:26
or the supply from the bench top power supply. So if I switch the switch in one direction
3:37
you can see that the red LED lit up. This red LED indicator light tells us
3:47
that we're currently using power supply coming in from the bench top power supply
3:54
And as you can see here on this multi-stop power supply, meter, we're reading a voltage of 12 volts
4:02
If I were to flip the switch into its opposition, the indicator light shuts off, and I switch
4:11
in the opposite direction, we can see that the green LED indicator light comes on
4:19
And the green light lets us know that we currently have the supply from the 12 charge adapter is currently on So now we can use switch number two
4:40
And if we switch one way, we can see that the yellow indicator light comes on
4:47
the yellow LED comes on, and that means we're currently using power from our 12th
4:55
12-volt charge adapter and we're currently have the we're stepping down that 12 volt that 12 volt
5:06
voltage down to 6 volts so the yellow indicator light lets us know that the yellow binding
5:18
post the 6 volt supply is currently on So what I'll do is I will take the probes from this multimeter
5:33
and I will touch the negative to the common ground, and then I will put my positive probe onto the yellow binding post
5:44
and we see on the multimeter that we're reading an output voltage of six volts
5:50
And if I were to place this in the blue binding post, there's no output voltage because we currently have it switched on to the 6-volt output and not the 9-volt output, which is represented by the blue LED indicator light
6:09
So if I were to switch, switch number two, that's in the opposition now
6:16
as you can see the yellow light shut off and switch it in the opposite direction
6:21
Now the blue LED indicator light is on. So now this is telling us we're currently using, again
6:29
the voltage supply from the 12-volt charge adapter represented by the green LED indicator light, which is on
6:39
And we stepping that voltage down to 9 volts and we turned it on which is our blue indicator light So right now our blue binding post is currently should be showing an output of 9 volts
6:56
So if I touch the common ground rail here and then put my probe into the blue binding
7:02
post, we see we have a 9 volt output. And then if I go back to the yellow binding post, we have no output
7:14
And that is obviously represented by the yellow indicator light, which is currently off
7:27
So we have the blue LED indicator light is on. We have an output voltage of 9 volts currently
7:36
I can turn it on to six-volt output. Our yellow LED is on
7:45
We have six volts output. Again, I can turn both of these two supplies are now off
7:57
I will just quickly go through and show that. Zero volts. Zero volts
8:05
Nothing is on. Although the green LED is on, that's just to tell us that we're, we have the switch number one on for our 12-volt charge adapter, but there's no supply going out yet because we have not flipped the switch for switch number two
8:25
Both of these LEDs are off. If I were to switch number one, the green LED is off, and again, the green LED is off
8:35
And again, the red LED is on telling us that we're using our bench top power supply, which again, I had set it to 12 volts
8:44
It's off camera. You can't see that. But we can see it here on the multimeter here
8:51
So that's just our demonstration of our power supply for our 3220 point breadboard project
