Electronic ballast

Details Electronic ballast Electronic ballast

1995-02-13

1996-12-17

McGraw, Vincent P.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315291, 315227R, 315241R, G05F 100

Patent

active

055857000

ABSTRACT:
An electronic ballast for one or more F32T8 or F25T8 or F17T8 fluorescent lamps has a new design tool for efficient transfer of power to the lamp or the lamps. The design tool is constructed from the ballast DC voltage and the commercially available lamp specifications by the manufacturers or from the American National Standards (ANSI). This design tool is shown below: Frequency.times.Capacitance=CONSTANT. ##EQU1## where W=Lamp rating in watts, V.sub.0 =Lamp voltage.

REFERENCES:
Second Generation Power Factor Controller, LX1562/1563, Linfinity Electronics, Garden Grove, CA, pp. 1-22.
Bipolar Transistors Excel In Off-Line Resonant Converters, Motorola Semiconductor Products Inc., Phoenix, AZ, pp. 1-8.
Design Tips, Simple Electronic Ballast Using IR2155 MOS Gate Driver DT-94-3, International Rectifier, Peter N. Wood & Gerry Limjuco, pp. 1 and 2.
Hexfets Improve Efficiency, Expand Life Of Electronic Lighting Ballast, AN-973, International Rectifier, El Segundo, CA, pp. 1-7.
Electronic Ballasts Using The Cost-Saving IR2155 Driver, International Rectifier, AN-995, Peter Wood, pp. 1-9.
Electronic Ballast , AR 180, Motorola, AZ, pp. 1-6.
Rapid-Start-Types-Dimensional And Electrical Characteristics, American National Standards Institute ANSI, C78.1-1991, pp. 1-85.

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