By implementing Active PFC, the power factor (PF) is improved from 75% (Passive PFC) to 94% (at full
load), while harmful harmonic frequencies are reduced below regulatory requirements.
▣
Improving Power Factor & Eliminating Harmonics through Active PFC
This product can be used with any normal AC input source ranging from 100VAC to 240VAC.
▣
Simplifying Source Input - Free Voltage
Designed with a high switching frequency and low power-loss circuitry, the efficiency of this product
exceeds 75% (at full load).
▣
High Efficiency Power Supply
The following figures show the ripple and noise measured from the DC output of this product.
▣
Strict DC Voltage Regulation & Low Output Ripple / Noise
a)+5VSB
(V
: 44.0mVp-p)
R&N
b)+3.3VDC
(V
: 37.2mVp-p)
R&N
c)+5VDC
(V
: 42.0mVp-p)
R&N
d)+12VDC
(V
: 51.6mVp-p)
R&N
e)-12VDC
(V
: 40.0mVp-p)
R&N
f)-5VDC
(V
: 36.4mVp-p)
R&N
1)
ZM300B-APS
a)+5VSB
(V
: 48.4mVp-p)
R&N
b)+3.3VDC
(V
: 43.6mVp-p)
R&N
c)+5VDC
(V
: 48.4mVp-p)
R&N
d)+12VDC
(V
: 50.0mVp-p)
R&N
e)-12VDC
(V
: 36.6mVp-p)
R&N
f)-5VDC
(V
: 39.2mVp-p)
R&N
Figure 2. DC Output Ripple & Noise Waveforms
2)
ZM400B-APS
※
The data above was measured according to the Intel ATX Ver. 2.03 / ATX12V Ver. 1.3 Power Supply Specifications.
Conditions : Each DC output had a 0.1
μ
F ceramic capacitor and a 10
μ
F electrolytic capacitor attached as the
bypass and the oscilloscope (input impedance 1M
Ω
) measured the waveforms at 20MHz
frequency bandwidth. The waveforms may differ with varying measurement conditions.
*For more information on the product, please visit our website at www.zalman.co.kr.
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