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High Efficiency Low Cost Vacuum Fluorescent Display Power Supply
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English
Abstract
The use of a switching power supply to provide the anode, grid and filament power for a vacuum fluorescent display has been the recent subject of numerous papers, periodicals and manufacturers' application notes. This paper, however, develops a math modeling technique that can be used to evaluate many different types of supplies. The results show that none of the power supplies available truly regulate both filament and display power. A control method that could be used to regulate both is evaluated. A simple pulse width modulation control design driving a miniature autotransformer, which results from use of the math modeling technique, will also be evaluated. The electromagnetic interference (EMI) properties missing from most of the evaluations for the other switching regulator power supplies shall be given along with a discussion on designing for low EMI properties.
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Citation
Miesterfeld, F., "High Efficiency Low Cost Vacuum Fluorescent Display Power Supply," SAE Technical Paper 830046, 1983, https://doi.org/10.4271/830046.Also In
References
- Designing Switching Voltage Regulators with TL 492 Bulletin CA-189, John Spencer, Texas Instruments Incorporated, Semiconductor-Components Division, P.O. Box 5012 Dallas, Texas 75222
- C.R.C. Standard Mathematical Tables 358 Twelfth Edition Chemical Rubber Publishing Company, 2310 Superior Avenue N.E., Cleveland, Ohio