I'm not sure what to make of this. It's technically intriguing but I'm struggling to work out its purpose other than possibly being for running older plug-in power supplies for equipment that doesn't use a standard USB style connector.
The device also has a very badly implemented USB port that is powered from a small linear regulator that is going to struggle at anything more than a few tens of milliamps on 12V and less on 24V.
The mains socket on the front actually puts out DC at a voltage that floats between about 90V to 200V+, so is only suited to universal switchmode power supplies that already convert the incoming mains to DC. It won't drive a capacitive dropper style lamp or an adaptor with a traditional transformer.
A particular oddity about the high voltage section is that it has a 100K resistor and LED across the main smoothing capacitor that can see in excess of 200V. It may be doubling up as a crude regulation load to stop the voltage peaking too high and also to help rapidly discharge the capacitor when the power is turned off. But the eighth watt resistor will be dissipating almost half a watt on a light load and will probably smoke quite quickly.
If you enjoy this channel you can help support it with a dollar for coffee, cookies and questionable electronic devices at https://www.patreon.com/bigclive
The device also has a very badly implemented USB port that is powered from a small linear regulator that is going to struggle at anything more than a few tens of milliamps on 12V and less on 24V.
The mains socket on the front actually puts out DC at a voltage that floats between about 90V to 200V+, so is only suited to universal switchmode power supplies that already convert the incoming mains to DC. It won't drive a capacitive dropper style lamp or an adaptor with a traditional transformer.
A particular oddity about the high voltage section is that it has a 100K resistor and LED across the main smoothing capacitor that can see in excess of 200V. It may be doubling up as a crude regulation load to stop the voltage peaking too high and also to help rapidly discharge the capacitor when the power is turned off. But the eighth watt resistor will be dissipating almost half a watt on a light load and will probably smoke quite quickly.
If you enjoy this channel you can help support it with a dollar for coffee, cookies and questionable electronic devices at https://www.patreon.com/bigclive
I remember converters from car battery to 220 VAC. They were huge (I mean 30cm cubed huge) and the leads were clamped on the car battery, not through the cigaret lighter. Didn't work unless the car was running on idle. Which btw. is now illegal in Finland.
3 pin mosfet no use in it
These are a knock-off of one sold in the US, outputing 120 volts through a proper 5-15R outlet. It would run a small laptop, etc, via a US-AU adapter. I bought one from a reputable components retailer.
I have one of these for use on my rotisserie motor (synchronised motor) when I go camping. It works better than I expected, although the motor really does have a bit of a rattle from the awful modified sine wave, quite bluntly… it does the job!
The usb is unusable, I'll attest to that! 💪
You didn't do the standard "Will I get a zap off it? ⚡Yes, I will get a zap off it"!! 🤦🐒
wait how tf will a phone charger (swishing power supply) work on DC? many vital components require AC like tre transformer, it simply can't work with DC
the fu*k? 😂
Hmmm, no reverse engineer analysis? Could be interesting.
Plug a kettle in and see what happens🤣
I've seen a lot of crappy Chinese inverters and chargers, but this one beats them all. 100mA for USB and the 240V output collapses to 100V with the tester alone. If I were to connect my mobile phone to it, nothing would work. Neither with a mains adapter (20W) nor at the USB port (min. 2A).
Love your channel. I would like to see your reverse engineering schematic on this.
Dodgy
It is on aliexpress for $3.7! Only 6 watts tho! I dont even know what you would use this for in a car.