Unity Power Factor

Conventional capacitive-input front ends draw energy from the AC line in short bursts of current at the peaks of the line voltage waveform. These current bursts are characterized by high peak currents and high harmonic content. The effect of the distorted line current can be appreciated by measuring the rms line current drawn by a conventional front end: the product of the measured rms current and the rms line voltage — the "apparent power" being delivered by the line — will be significantly greater (typically 1.6X) than the DC power delivered by the front end. The "extra" rms current at the input is circulating harmonic currents which deliver no power to the load but which flow in the delivery system and contribute to losses. Only the fundamental component of the line current contributes to "real" power flow. Power factor — the ratio of "real" to "apparent" power — is a measure of the effectiveness with which an AC load can extract usable power from an AC source.

FEATUREs
■ Unity Power Factor
■ Safety Agency Approvals: UL, CSA, TÜV, BABT
■ Meets IEC 6100-3-2 for Line Current Harmonic Content
■ Reduces Peak and RMS Line Currents
■ Universal Input: 85-264Vac: 50/60 Hz
■ Up to 600W of Power
■ Power Density Up to100W/in3
■ Adaptive Output Voltage Control
■ Short-Circuit Protection
■ Input Surge Current Limiting
■ Converter Enable
■ Power OK Output
■ Size: 4.6" x 2.4" x 0.5" (116,8mm x 61,0mm x 12,7mm)
■ Efficiency: 90-94% Typical
■ CE Marked