A Look Inside

The design is based on a strong 12V PSU using the LLC resonance converter Topology. The 3.3V and 5V are generated from 12V using DC-DC converter. This topology is very common in modern PSUs. The topology differs from the topology used in the CX600M and CX430 power supplies from Corsair.

Direct on the AC input we can see two Y capacitors for burst pulse filtering. On the main PCB the filtering continues with two Y, two X caps, one MOV and two CM chokes for the input filtering. The rectification is done using a GBU1506 (15A, 600V)  fixed to a heatsink. The APFC uses two Mosfets and a 8S2TH06 (600V, 8A, trr 13ns, Vf  2V) Diode. One Nippon Chemi-Con (400V, 390uF, 85C) is used as APFC capacitor. The LLC Resonance converter is controlled by a CM690x. On the primary side there are two TK18A50D (500V, 18A, 0.22 Ohm) Mosfets. In this PSU most heatsinks are basically metal plates.

The 12V rectification Mosfets 6x CED6056 (60V, 76A, 6.2mOhm) are located at a daughter PCB. Those are well circulated by air and do not have an own heatsink. On the secondary side, Corsair decided to use cheap Teapo 105C capacitors for DC filtering. The 3.3V and 5V converters are located at the back end of the PCB. The cables of the connectors are split here between 12 and 3.3, 5V for a good reason and are soldered to the correct place. All in all a very low cost but still nice looking design.

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Page 1 - Presentation

Page 2 - Photo Gallery

Page 3 - Delivery / Specs

Page 4 - A Look Inside

Page 5 - Input/Output Power and Efficiency

Page 6 - Result Analysis and Discussion

Page 7 - Conclusion