Browse Prior Art Database

SINGLE POWER SOURCE TRANSFORMATION DISTRIBUTION FOR A BATTERY CHARGER

IP.com Disclosure Number: IPCOM000007342D
Original Publication Date: 1995-Mar-01
Included in the Prior Art Database: 2002-Mar-18

Publishing Venue

Motorola

Related People

Authors:
Scott Garrett Jose Fernandez Vernon Meadows Lam Dao

Abstract

Minimizing cost and improving quality perform- ance are among the goals of any Charger Design. Today's battery charger power supplies typically have an isolated auxiliary transformer to supply power for the controller circuitry as in figure 1. This method adds cost and complexity By using a single trans- former to supply both the battery charge power and the controller power, the isolated auxiliary trans- former is unnecessary. This can be done without jeopardizing the per%ormance of the battery charger. Thereby reducing the cost of the power supply is minimized and reducing the number ofparts.