Teardown & Component Analysis
Before proceeding with this page we strongly encourage you to a look at our PSUs 101 article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we're about to discuss.
|Manufacturer (OEM)||Enhance Electronics|
|Transient Filter||4x Y caps, 4x X caps, 2x CM chokes, 1x MOV, 1x CM02X|
|Inrush Protection||NTC thermistor & relay|
|Bridge Rectifier(s)||2x Shindengen LL25XB60 (600V, 25A @ 113°C)|
|APFC MOSFETs||4x Infineon IPP50R140CP (550V, 15A @ 100°C, 0.14Ω)|
|APFC Boost Diode||2x CREE C3D10060A (600V, 10A @ 153°C)|
|Hold-up Cap(s)||3x Nichicon (450V, 560uF, 2000h @ 105°C, GL)|
|Main Switchers||4x Infineon IPP60R099C6 (650V, 24A @ 100°C, 0.099Ω)|
|Driver ICs||2x Silicon Labs Si8230BD|
|APFC Controller||Champion CM6502S & CM03X Green PFC controller|
|LLC Resonant Controller||Champion CM6901T6X|
|Topology||Primary side: Full-bridge & LLC resonant controller Secondary side: Synchronous rectification & DC-DC converters|
|+12V MOSFETs||16x Infineon BSC014N04LS (40V, 100A @ 100°C, 1.4mΩ)|
|5V & 3.3V||2x DC-DC Converters|
|Filtering Capacitors||Electrolytics: Rubycon (6-10,000h @ 105°C, ZLH), Sun'con (105°C), Nippon Chemi-Con (4-10,000h @105°C, KY) Polymers: Unicon (UPH, 2,000h @ 125°C)|
|Supervisor IC||SITI PS223 (OVP, UVP, OCP, SCP, OTP)|
|Fan Model||Yate Loom D14BH (140mm, 12V, 0.7A, 2800 RPM, 140 CFM, 48.5 dB[A], Double Ball Bearing)|
|Rectifier||1x PFR10V45CT SBR (45V, 10A)|
|Standby PWM Controller||Sanken STR-A6062H|
This platform is provided by Enhance Electronics and features very good build quality, despite an affordable price for this wattage category. The same high-end design is also used in SilverStone's ST1500-TI, which costs way more than the KL-C1500PL. Kolink's offering even has more efficient primary switching FETs and higher-capacity bulk caps. Everything else is exactly the same between the two PSUs.
We find a full bridge topology on the primary side, along with an LLC resonant converter. On the secondary side, the DC-DC converters are installed on a PCB right behind the modular board in an effort to minimize energy losses. Finally, the +12V FETs are installed on the main PCB's solder side, and are mainly cooled by the chassis.
Ripple filtering is mainly done by polymer caps, with the few electrolytic ones being provided by respected manufacturers. This is a key feature, since capacitor quality on the secondary side plays a major role in a PSU's reliability.
The following video shows the KL-C1500PL’s internals.
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