Cheap Power Supply Teardown: Is it Dangerous?
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https://www.patreon.com/allthingsoneplaceIn this video I teardown two power supplies. One a example of good construction and one an example of bad construction. The two supplies have relatively similar specifications and performance but one of these supplies is not like the other.
There are lots of little bits of information in the video so watch throughout to gain lots of knowledge.
Both supplies are analyzed for both idle (standby) power consumption as well as several load conditions while also looking at power quality metrics on the AC side.
Link to Amazon (not that inexpensive of a product and should come with a rated supply):
https://www.amazon.com/Maxmartt-Constant-Electronic-Discharge-Capacity/dp/B084GNZ3DX/(it looks like they changed the power supply on this but it doesn't look any better, anyone have the latest one??)
00:00 Introduction 1
01:05 Analyzing the good supply
02:16 Teardown of the good supply
04:23 Introduction 2 and analyzing the bad
10:47 Teardown of the bad supply
14:36 The issue with transformers
17:18 Conclusion - get a different power supply
Equipment:
Video Camera: Sony HDR-CX405
Still Camera: Cannon PowerShot SX410 lS
Lights: Two VILTROX VL-200T
Recorder: Zoom H4n set to 24-bit 48 kHz WAVE
Microphone: Shure WL183 Lavalier Microphone with windscreen
Adapter: Shure RPM400TQG (when I remember to put it on)
Plus a bunch of lab gear...
Website: www.allthingsoneplace.com
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