Test of ZK PW500 boost Converter 500W DC 12V-27V to 24V to 48V Step Up converter | WattHour

[@davidisenah]

You've been gone for quite a while, welcome back.

[@Andreas-q4q]

Your tests and reviews are the most detailed I’ve seen. I’ve learnt a lot from your videos and I’m glad to see your making new videos again 👍👍

[@WattHour]

Awesome, thank you!

[@PolishArmy86]

Jak zawsze bardzo szczegółowy filmik.👍👍👍

[@catzplayhouse9612]

This is the WUZHI audio I requested to you.. . Thank you for the geat review 😊

[@WattHour]

You are welcome. This is not audio module. it is a boost converter. yes there is Audio module that looks the same.

[@fakhrealam2008]

Very nice, please share what kind of thermal camera you are using, will help.

[@WattHour]

the link to thermal camera is in the description.

[@ThePahan007]

[@mendozaconsultation]

I have a Question for you. I was sent the wrong converter I ordered.I ORDERED A 12v to 24v 240w, 10a one, so i can increase my 100w or maybe 200w combined solar, to the power bank i have, for faster charging.I have a 1200w psw, 1000wh power bank. I received a 24v to 12v 20a 240w one. IF,... I SWITCH THE INPUT, 24v wires, WITH THE OUTPUT 12v WIRES,WOULD THAT CHANGE IT TO A STEP DOWN 12V TO 24V FROM THE 24V TO 12V.?

[@WattHour]

First you gotta learn this. Watt (power) is always watt. it can not increase. it can decrease due to effeciency. for example 100W is at the inpuyt so 100W=50Vx2A. you can get about 100W (not 100W but 95W). 100W=100Vx1A or 100W=1Vx100A or even 100W=1000Vx0.1A. you can increase voltage or current but NOT power.

[@WattHour]

you didn't reply. I spent time to write. you didn't evey says "thanks" or "not thanks".

[@cbiz8]

I think that 5A steps are no suitable know the maximum output current. You can't know, for example, if the max is 10 or 14A, only why it can't handle 15A, and so further.

[@johncoops6897]

I just commented the same tbing. Very lazy and inaccurate testing methodology used, which makes the results almost useless.

[@peterdkay]

Ripple is very high. Any power supply that blows up with input and output within specification should be avoided!!

[@johncoops6897]

Misleading output capability results due to lazy testing method using only a small number of Presets. 5A 8A 10A 15A 20A is far too coarse! You are using a variable Load, so just decide on a acceptable voltage drop (say 5%) and then slowly increase load current until voltage drops. I like this Channel for the devices tested, but the testing methodology is really poor.

[@WattHour]

You see , we can't satisfy everyone. If you read other module tests people say why so many tests. You complain why we don't have more threats. That is enough. I did more than 40 tests .

[@johncoops6897]

@@WattHour - You did 40 tests but didn't get ACCURATE results. Do the same 40 tests for maximum current output, but don't use Preset 1,2,4,6,8,10,15,20 Amps. Simply use the Load to increase the Current in ONE sweep, and record when the voltage drops off. That way, we all learn whether the device can output 11A or 14.5A... rather than you announcing "cannot to 15A so maximum is 10A" 🙄

[@williamdouglas7211]

I think the level of testing is great for a KZbin channel and for most general DIYers. The detail is enough to know that this module is way overrated , has an incredibly high ripple and could potentially start a fire if it fails. That’s definitely enough for me.

[@johncoops6897]

@@williamdouglas7211 - you seem to be missing my point, like the channel owner. It's not the LEVEL of detail but the way that detail is determined and presented to the audience. Rather than dragging out the explanation of the Current tests, the normal method is to connect the Load and "wind it up" until the power supply voltage in unsuitable. Intead, this guy uses a few preset test currents with up to FIVE AMP increments, and then declares that (eg) "15A fails, so maximum is 10A"... where in actual fact the maximum might be 14.85A. The testing method introduces huge errors (33% or so) in the reported results, plus it takes longer and gives viewers useless information that they don't need to know.

[@williamdouglas7211]

@@johncoops6897 I get what you are saying , but in this case , the bottom line is that the power supply is a piece of sh#t and it’s best to stay far away from it. Also the best way to test the transient response of a power supply is with a step load. The stability of the power supply can also be determined using this method. Gain , poles and zeros are very important in the design of any system, so whether the content creator knew he was checking this , it is still great information for anyone who has a bit of knowledge on the topic.

[@mahmoodh7767]

👌👌👍👍💟💟🙏🙏