Power supply circuit and field emission electron source

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12149170
APP PUB NO 20230036712A1
SERIAL NO

17772579

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Abstract

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A power supply circuit and a field emission electron source are provided. The power supply circuit includes: field effect transistors Si coupled in series via drains and sources in sequence, wherein 1≤i≤n, n≥2, and wherein a source of S1 is coupled to a negative electrode of a voltage source, and a drain of Sn is used as an output terminal of the power supply circuit to couple to a load; a first group of diodes D1i coupled in series; a first group of resistors R1j, 2≤j≤n; and a current feedback module configured to adjust an internal resistance of the field effect transistors Si, coupled in series in sequence, so as to cause a current passing through the load to be constant; wherein the field effect transistors Si, 1≤i≤n, operate in a constant current region.

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Patent Owner(s)

  • NURAY TECHNOLOGY CO., LTD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pan, Jinsong Suzhou, CN 5 2
Qin, Zhanfeng Suzhou, CN 12 117
Tang, Huaping Suzhou, CN 34 229
Yin, Xiangyu Suzhou, CN 4 1
Zhan, Yangwei Suzhou, CN 3 1

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