Reference Design Library > Power Management > Power Factor Correction > ADP1047-300-EVALZ: 300W PFC, 385V Out, 85 ~ 265V in

ADP1047-300-EVALZ: 300W PFC, 385V Out, 85 ~ 265V in

Summary

This evaluation board features the ADP1047 in a typical AC/DC switching power supply in a boost power factor correction (PFC) topology. The circuit is designed to provide a rated load of 385V/300W from an AC input voltage source of 85 VRMS to 265 VRMS AC. The ADP1047 provides functions all the functions necessary for active PFC circuit plus accurate AC power metering. It achieves near-unity power factor, low distortion of the input current, the output voltage regulation, over current protection, AC line fault detection and protection, over temperature protection, and power supply shutdown. It also can optimize light load efficiency performance using output voltage adjustment and frequency reduction.

Please refer to the appendix for the detailed schematic. The AC input side consists of the input terminals, EMI filter, inrush relay and its control circuit. The D1 is the rectifier bridge for main power transmission. The D4 is used for input voltage sensing. The boost circuit consists boost inductor (L2), boost switch (Q1) and diode (D2). The gate signal for the boost switch comes from the ADP1047 through the ADP3634 gate driver. The ADP1047 (U1, on daughter card) can be powered either via the USB 5V via an ADP3303 LDO (U2, on daughter card) present on the same daughter card, or via the auxiliary power supply on the board. Thermistor (RTD1) is placed close to the MOSFET on the board allowing over temperature protection functionality to be implemented.

Specifications

Manufacturer Analog Devices Inc.
Category Power Management
Sub-Category Power Factor Correction
Eval Board Part Number ADP1047-300-EVALZ-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Board not Stocked
Output Power 300 W
Voltage In 85 ~ 265 VAC
Voltage Out 385 V
THD @ Conditions - Not Given
Efficiency @ Conditions >94%, (Conditions not given)
Features Fault Indication
Frequency Hopping
GUI / Design Software
I²C Interface
Light Load Mode
Memory Available On-Board
Over Voltage Protection
PFM or PWM
PMBus Interface
Power Good Output
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 97.7 kHz
Application / Target Market Computers
Medical
Power: Auxiliary Power Supply
Power: Industrial Power
Servers
Telecom
Component Count + Extras 115 + 68
Design Author Analog Devices
Main I.C. Base Part ADP1047
Date Created By Author 2011-07
Date Added To Library 2021-04

Eval Board

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Support Documents & Media

ADP1047-300-EVALZ - User Guide ADP1047 - Datasheet

Media

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