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Cooler Master MWE 450 Bronze V2 PSU Review | Detailed Teardown | PC Bolt | Hindi
Mistake
Formula to calculate Effeciency is
(Output power/Input power) *100 = Effeciency
Cooler Master MWE 450 (2021) review and teardown
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In this video, I will show you why Coolermaster MWE 450 is the best and reliable power supply in India. Coolermaster used Half Bridge Resonance LLC Converter with DC-DC Converters.
Full Load Testing---
12v rail. - 444 watts with 12.17v
5v rail - 25 watts with 5.12 v
3.3v rail - 16.5 watts with 3.38v
(Results may not 100% accurate, I used heating elements as load and monitor current and voltage on each rail.)
Filters-
there are 2x Y-capacitors and an X capacitor on 220v input. followed by a Differential mode filter inductor and 2 inductors in the Common mode filter. so, we can say this power supply impressively suppresses high-frequency noise from the input side.
PFC, and Primary Capacitor-
This particular Unit is 450watt rated so the PFC Circuit is made up of only 1 MOSFET (JCS13N50FC), inductor, and its diode(10F60UHF). Primary Capacitor is from Capxon Rated for 85 degrees Celcius, with ratings of 420volt 270uf.
DC to AC Converter-
MWE uses 2 MOSFETs in Half Bridge Configuration (JCS13N50FC) to make PSU affordable and yes safe and efficient at the same time. Due to soft switching nature of circuit, This PSU is actually very reliable, and less prone to get damage, low electrical noise, better filtering and cool Components are achieved with this design. at low price. Insane
Secondary Rectification-
This version Uses 2 mosfets in Centertapped secondary of transformer. to rectify 12V DC. whic is done by 2X NCE40H12 85Amp 40v Mosfet.. these mosfets rectifies full wave. and with very low ESR, these Mosfets dissapates very little power, that makes it cooler and more efficient.
Output Capacitors-
Coolermaster used Capxon KF Series capacitors on the power rails. all are rated for 105 degrees Celsius.
12v rail - 10x Capxon 16v 1000uf (Electrolytic)
5v rail - Capxon 10v 680uf (Polymer)
3.3v rail - Capxon 6.3v 680uf (Polymer)
+5VSB - Capxon 10v 1000uf
*Other logic capacitors are from Capxon rated for 105 degrees Celcius.
DC-DC Converter.
So, this PSU only generates 12volts and rest 5Volt and 3.3volt is generated from same 12volt and convert it further back to 5v and 3.3 volts with 2 identical Syncronous Buck converters.
this design is superior when it comes to maintain tight voltage regulation and variable load.
Cooling Fan-
Coolermaster here used a 3000RPM 120MM cooling fan, which mostly runs below 1000RPM to make less noise, this unit comes with manufacturer from "Thermal Control"
which is controlled by temperature of secondary side heatsink.
This PSU (Coolermaster MWE 450v2 80+ bronze (2021)) is awesome and better when we compare it with similar budget PSUs.
Warrenty provided is 5 year which is amazing, at this price...
Video Written, Recorded, Edited by Arif Khan
Camera - Motorola Moto G40 Fusion (4K 30FPS) (Gcam 8.4)
Microphone - Redgears Shadow Vox
Edited on Adobe Premier Pro
Graph and Data charts created on Microsoft Powerpoint 2019
(Datasheet and component analysis will be updated soon)
-Thank you