Topology and teardown
I can only tell that this is an FSP platform by one small detail, without examining the potentiometers on the boards more closely. Although it is tempting to adjust them, you should avoid doing so as you will likely interfere with the proper operation of the power supply. The PCB is large, with enough space between components for excellent airflow, which is perhaps why be quiet! didn’t bother to enlarge the perforations on the case’s intake and exhaust grilles.
To achieve the Titanium efficiency, FSP used a bridgeless PFC converter, where FETs rectify the incoming AC signal instead of the classic bridge rectifiers. FETs have significantly lower power losses than diodes, so a bridgeless PFC is more efficient. The main FETs are installed in a full-bridge topology, and an LLC resonant converter is also used to increase efficiency. On the secondary side, a synchronous rectifier regulates the 12-volt rail, and a pair of VRMs generates the shunts.
FSP has used high-quality components, and the quality of soldering is good. All capacitors are from Japanese manufacturers, and the frameless fan uses a fluid dynamic bearing for lower noise and higher reliability.
Component overview
Finally, I have listed all the components used for the interested readers:
General Data | |
Manufacturer (OEM) | FSP |
PCB Type | Double-Sided |
Primary Side | |
Transient Filter | 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV (TVR14561), 2x Gas Discharge Tubes (SMD) |
Inrush Protection | NTC Thermistor (SCK-056, 5Ohm) & Relay |
Rectifier MOSFETs |
4x Infineon 60R600P7 (650V, 4A @ 100°C, Rds(on): 0.115Ohm)
|
APFC MOSFETs |
2x Infineon IPZ60R099C7 (600V, 14A @ 100°C, Rds(on): 0.19Ohm)
|
APFC Boost Diode |
2x CREE C3D08065I (650V, 8A @ 130°C)
|
Bulk Cap(s) |
2x Nippon Chemi-Con (420V, 470uF each or 940uF combined, 2000h @ 105°C, KMZ)
|
Main Switchers |
4x Alpha & Omega AOTF160A60L (700V, 15A @ 100°C, Rds(on): 0.16Ohm)
|
IC Driver |
2x Novosense Micro Labs NSi6602 |
APFC Controller |
Infineon ICE2PCS02
|
Resonant Controller |
Champion CM6901T2X
|
Topology |
Primary side: Bridgeless PFC, Full-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters |
Secondary Side | |
+12V MOSFETs |
6x Toshiba TPHR8504PL (40V, 100A @ 100°C, Rds(on): 1.4mOhm)
|
5V & 3.3V | DC-DC Converters: 6x Infineon BSC0901NS (30V, 94A @ 100°C, Rds(on): 1.9mOhm) PWM Controller(s): uPI UP3861P |
Filtering Capacitors | 6x Nippon Chemi-Con (2-5,000 @ 105°C, KZE) 2x Rubycon (1-5,000 @ 105°C, ZL) 2x Rubycon (6-10000 @ 105°C, ZLH) 2x Chemi-Con (6-10000 @ 105°C, KZN) Polymer: 34x Chemi-Con, 1x FPCAP |
Supervisor IC | Weltrend WT7527RA (OVP, UVP, OCP, SCP, PG) |
Fan Model | be quiet! Silent Wings BQ SIW3-13525-HF (140mm, 12V, 0.56A, Fluid Dynamic Bearing Fan) |
5VSB Circuit | |
Rectifier |
1x CET CEB04N7G FET (700V, 4A, Rds(on): 3.3Ohm
1x Infineon BSC0901NS FET (30V, 94A @ 100°C, Rds(on): 1.9mOhm) 1x P15L50N5 SBR (50V, 15A) |
- 1 - Einführung, technische Daten und Testreport
- 2 - Unboxing, Kabel und Schutzschaltungen
- 3 - Teardown: Topologie, Komponenten, Verarbeitung
- 4 - Load Regulation, Ripple Suppression, Transient Resonse
- 5 - Hold-Up Time, Timings, Inrush-Current
- 6 - Average Efficiency and PF
- 7 - Betriebsgeräusch und Lüfter
- 8 - Zusammenfassung und Fazit
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