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DER-583 - 106 W High Line Input Non-PFC CV/CC Flyback Charger Power Supply

DER-583 - 106 W High Line Input Non-PFC CV/CC Flyback Charger Supply

Overview

This engineering report describes a 59 V (nominal), 106 W flyback reference design for operation from 165 VAC to 264 VAC supplies. The power output is designed with constant voltage/constant current characteristics for battery charger applications. The charging circuit is optimized for lead-acid batteries. When the current drops below ~0.5 A during charging, the output voltage switches from the 59 V charge voltage to the 56 V float voltage to keep the battery charged without overcharging. This is a standard feature of lead acid battery chargers. The design is based on the TOP267EG without PFC input stage. It is designed to operate in a fan-cooled enclosure. The design utilizes air splitters to direct cooling air over the main radiator. This minimizes the heat sink size (and device size) required for TOPSwitch U1.

Blockdiagram

Design Files

Related Devices

Devices	Class	introduce	Datasheet
TOPSwitch-JX		Integrated Off-Line Switcher with EcoSmart Technology for Highly Efficient Power Supplies	Download

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2024-11-24 10:17:46

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