Filter
Top Products
TFX12V Power Supply Design Guide
Thin Form Factor with 12-V Connector
Version 2.0
39
6.3 Input Line Current Harmonic Content
For sales in the EU (European Union) the power supply shall meet the requirements of
EN61000-3-2 Class D and the Guidelines for the Suppression of Harmonics in Appliances and General Use
Equipment Class D for harmonic line current content at full rated power. See Table 16 for the harmonic limits.
Table 16. Harmonic Limits, Class D Equipment
Per: EN 61000-3-2 Per: JEIDA MITI
Harmonic Order n
Maximum permissible Harmonic
current at 230 VAC / 50 Hz
in Amps
Maximum permissible Harmonic
current at 100VAC / 50 Hz in Amps
Odd harmonics
3
5
7
9
11
13
15
≤ n ≤39
2.3
1.14
0.77
0.4
0.33
0.21
0.15 x (15/n)
5.29
2.622
1.771
0.92
0.759
0.483
0.345 x (15/n)
6.4 Magnetic Leakage Fields
A PFC choke magnetic leakage field should not cause any interference with a high-resolution computer
monitor placed next to or on top of the end-use chassis.
6.5 Voltage Fluctuations and Flicker
The power supply shall meet the specified limits of the EN61000-3-3 Specification for voltage fluctuations and
flicker for equipment drawing not more then16 AAC, connected to low voltage distribution systems.