ویدیوی بعدی
ویدیوهای پیشنهادی
Dangerous & Useless Cube USB Charger
Another dangerous USB charger. This one is even worse than the previous one. Not only it is dangerous (can cause electric shock or fire), it is also completely useless. It can't supply the 1A current at 5V. At 0.5A the voltage already drops to 2.7V. The separation of primary and secondary side is only 0.5mm on the PCB. The transformer also looks dodgy and the tiny EMI capacitor (connecting primary to secondary) is only rated 1kV. It has no fuse, fusible resistor or inrush resistor. The boards have no apparent separation line, it is just one jungle of tracks, primary and secondary side riddled like a maze. There are two boards connected with a cable containing both primary and secondary side. Components on one board are touching components on the other board. This is definitely an electrocution device.
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