hi welcome to a product tester review by Robojax in this video we are going to test this high link
AC to DC converter module and we are going to test them with 120 volts which is in North America and
some other countries and also with 240 volts input and the outputs are 5 volts 12 volts 3.3
volts these are 5 watt version also I have a 5 volts 3 watt version let's get started with this
the modules have input AC voltage rated from hundred 240 volts which means I can
work anywhere in the world either with 50 or 60 health a see the they've labeled them these two
pins here and AC and then we have to pan two pans for the DC and a bit easier the label had
negative V out and positive V out as simple as that and as you can see here we have the
five watt and then the three watt in terms of five a little the front both of the module is
38.2 millimeters by 22.9 so the cysts when t three millimeters and the module itself is
eighteen point two millimeters this is a 5 watt module and then for the small one for the 3 watt
20 point two millimeters the length is thirty three point four millimeters and 15 millimeter
is the height if you are interested in weight of the larger size one twenty four point seven
grams and the three water a smaller one seventeen point six grams let's open and see what is inside
okay so even if I open it they put glue here and all the components
are glued together and we won't be able to see it
and here on the data sheet as we can see then operating temperature is minus 20 degrees
to 60 plus 60 degrees Celsius and maximum input current in terms of AC is less than
0.2 amp ere inter slew rate is less than 50 milliseconds and in terms of efficiency at
110 volts output with full load is greater than 69% at 220 volts is greater than 70% and held
the life expectancy of this one is greater than hundred thousand hours I'll provide you
the link in case if you need to read further about the specification is also mentioned here
further that a fee wired to death and put heat shrink so accidentally I do not touch easy at
this point now let's check the resistance between input and output of this module and see how much
is this sense you are getting so I'm going to connect to one of the wires and come here
infinity and then here open-loop here let's go to the other AC pin so they are completely isolated
going to connect this five volts module to AC and have a tiny voltmeter that I'm going to connect
negative positive is on this side negative is in here and this is the AC I'm connecting it
to 110 volts now the AC have been connected and this is a five volt DC as per values shown here
now this is connected to my electronic load where these two wires and here is a voltage the output
from this is shown here this is the electronic load DL 3031 and these are the two terminal that
from the circuit will be connected in here and we will see the voltage here and the current
gonna set the powers to five watts and turn it on oh one ampere is being drawn
from this and the voltage is 35 volts and here is a power and in terms of resistance
based on this as you can see now we are drawing a 5 watt from this I'm unable to
determine the efficiency of this device in terms of AC now I'm testing this 5 volts
3 watt which gives about the ripple effects on power DC smaller version that's just set
and the voltage here all connected and you will see the voltage here
let me show you the AC voltage
I've connected the 222 volts you see so we are going for 0.6 ampere first let's
go for constant current and here I will type 0.6 and enter and turn it on now we are at
0.6 volts and the voltage is dropped not 5 volts this is the maximum and the power
shows three points and the power shows two point nine four watts let me increase it
by 100 milli amp so that is 0.7 ampere still holding but the voltage dropped
here after 30 minutes of test still stable and going now I've changed
the input voltage of this 5 volt module to 240 volts let me show you
245 volt AC connected in here where 5 volts at the output let's go for three
words 5 volts 0.6 amp okay let's go 3.2 what and I'm gonna bomb 3.4
now exactly when I'm paired at five volts so this is actually three watts and we are
getting two words extra I believe I don't need to go further because you should not go at this
rating five point seven completely shut off now this is the 12 volts module it has been
connected now and we are getting 12 volts now let me connect it to the load this is a negative and
positive these two wires are for my load and there is five and you will see the power here
as you can see zero point at five watts it's just protecting it and the voltage is down so
it doesn't work let me turn it to forward even at fourth now it's protecting turn off so at forward
when I turn it on it works I'm changing it in here and you will read it a little larger there
4.1 4.2 still working 4.3 what now 4.4 Watts four point five at 0.36 X as soon as I turn it
four points X it doesn't work let me reduce it four point five once a protection kicks in you
have to turn it off and turn it on again now it's at four point five Watts 0.36 X ampere
this device cannot handle five watts
but doesn't matter at the moment it's 110 120 volts but this the surface let me show
you first actually it's two full defects volts AC this is a the 12-volt module
okay so we got 12 volts the load is connected but not turned on let's
connect it with five watts and now it's five volts running and as you can see
the current show 0.4 ampere five watts at twelve point three volts the output
five point six now
5.7 watts
five point eight watts five point nine
as you can see the protection kicks in and the output is zero to protect
it when you turn it off now let's go five point six so
five point six is working with 220 volts now it's 240 but 220 should be the same
now how does a conclusion for all my tests for this high link AC to DC converter modules one
of these modules can accept hundred and ten up to 240 volts that I've tested and they
can deliver the five watt with the exception of this this 12 volts it did not deliver five
watts and it can go up to four point seven or what safely but at 240 or 220 volts this can
go even towards extra so all of these modules can be used safely with the exception of this
12 volts and you can use them also for Arduino for any other application with
the size they're very compact and I definitely recommend them for applications that you have
well I have no affiliation with this thank you for watching please number of the video
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