A design of filament power supply based on UC3842 controller

Yihua Lin; Haiming Jiang; Jing You; Lang Hu; Xiaofeng Li; Jian Qiao

doi:10.1117/12.2645746

23 November 2022 A design of filament power supply based on UC3842 controller

Yihua Lin, Haiming Jiang, Jing You, Lang Hu, Xiaofeng Li, Jian Qiao

Proceedings Volume 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022); 1230223 (2022) https://doi.org/10.1117/12.2645746
Event: Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 2022, Guangzhou, China

Abstract

When the high power microwave power supply system works normally, the magnetron has higher requirements for the filament power supply. In order to solve the problems of long response time and unstable output voltage of filament power supply, This work applied UC3842 as a current mode PWM generator component to construct a single-ended forward filament power supply with AC208V input and DC5V output. And the working principle of the main circuit and the design of the control circuit are analyzed in detail. The validity of the circuit is verified by the simulation results.

Citation Download Citation

Yihua Lin, Haiming Jiang, Jing You, Lang Hu, Xiaofeng Li, and Jian Qiao "A design of filament power supply based on UC3842 controller", Proc. SPIE 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 1230223 (23 November 2022); https://doi.org/10.1117/12.2645746

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