ABC200 datasheet(4/11 Pages) BEL

4 / 11 page

ABC200 Series

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Figure 3. Inrush current, Vin = 230Vac, 90° CH1: Vin (200V/div), CH2: Iin (20A/div)

If the sinusoidal input voltage stays below the input under voltage lockout threshold

Vi on, the supply will be inhibited. Once the

input voltage returns within the normal operating range, the supply will return to normal operation again.

Power factor correction (PFC) is achieved by controlling the input current waveform synchronously with the input voltage. A

specified PFC controller is implemented in the boundary conduction mode topology giving outstanding PFC results over a

wide input voltage and load ranges. The input current will follow the shape of the input voltage.

The high efficiency (see Figure 4) is achieved by using softs witching LLC technology with boundary conduction mode PFC

topology minimizing switching losses. Synchronous rectifiers on the output reduce the losses in the high current A Schottky

or ultra fast diode is used as the rectifier in the output path for ABC200-1012G. ABC200-1024G and ABC200-1048G because

of the high output voltage level.

Figure 4. Efficiency Curves

ABC200 Datasheet(PDF) 4 Page - Bel Fuse Inc.