ZALMAN TNN 300 User Manual page 6

⑤ High-Efficiency Fanless Power Supply
- The power supply uses two high-efficiency
FET components to reduce switching loss at
low input voltages, incorporates Heat
S o u r c e C o n t a c t (HSC) technology to
eliminate the need for a fan, and has a 10%
higher power conversion efficiency (80%)
rating than conventional power supplies.
- Heat from the power supply is transferred directly to the high-capacity heatsink plates,
where it is dissipated by natural convection. Without the need for cooling fans, the
power supply is free of noise and vibration.
- Noise reduction and enhanced efficiency via resonant circuitry.
- Minimized standby power consumption to less than 3W via Green IC.
- Conventional power supplies tend to have lower output voltage due to line-dropping
phenomenon. The TNN Power Supply extends the output voltage sensors up to the
motherboard connection for +3.3V, +5V, and +12V rails to prevent this, enhancing output
voltage accuracy and assuring system stability.
■ Ripple and Noise Waveforms at DC Outputs
a)+12V1DC
(104mVp-p)
※ Data above were measured according to INTEL ATX v2.03/ATX12V power supply specs.
Measurement specifications : For each DC output, a bypass made up of one 10μ F ceramic
capacitor and one 10μ F electrolytic capacitor is connected and measured with an oscilloscope
(input impedance 1MΩ) at a frequency bandwidth of 20MHz. The waveforms may differ under
different measurement conditions.
TNN 300
b)+12V2DC c)+3.3VDC
(106mVp-p) (42mVp-p)
d)+5VDC e)+5VSB
(42mVp-p) (28mVp-p)
f)-12VDC
(82mVp-p)