ZALMAN TNN 500AF manual Electricity Conservation, Ripple and noise waveforms at DC output

High-Efficiency, Fanless Power Supply

The power supply uses high-efficiency FET

components and Heat Source Contact (HSC) technology, eliminating 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, making the power supply free of noise and vibration.

-High-capacity active PFC inductors, separate switching transformers for each power rail (+12V, +5V, +3.3V), and 2-FET forward converter design all work to create a superior level of stable power quality.

-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 output

a)+5VDC b)+3.3VDC c)+12V1DC d)+12V2DC e)-12VDC f)-5VDC g)+5VsdDC

(21.4mVp-p) (42.2mVp-p) (80.8mVp-p) (88.4mVp-p) (98.4mVp-p) (56mVp-p) (31.8mVp-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 0.1 F ceramic capacitor and one 10 F electrolytic capacitor is connected and measured with an oscilloscope (input impedance 1M ) at a frequency bandwidth of 20MHz. The waveforms may differ under different measurement conditions.

3) Electricity Conservation

Since TNN 500AF is equipped with a high-efficiency power supply and does not use any fans, it utilizes 10 to 15% less power compared to a conventional computer system under the same configuration.

TNN 500AF