Title:
定電流制御電源回路および電界放出電子源
Document Type and Number:
Japanese Patent JP7254207
Kind Code:
B2
Abstract:
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, 1≤i≤n, i and n are natural numbers, n≥2, and 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 i and j are natural numbers; and a voltage control module configured to adjust an output voltage of the voltage source to cause a current passing through the load to be constant; the field effect transistors Si, 1≤i≤n, operate in a resistive region.
Inventors:
唐▲華▼平
Yoon Shou
Hata Zouho
Ban Kei pine
▲張▼▲慶▼▲輝▼
占▲楊▼▲い▼
Yoon Shou
Hata Zouho
Ban Kei pine
▲張▼▲慶▼▲輝▼
占▲楊▼▲い▼
Application Number:
JP2021560184A
Publication Date:
April 07, 2023
Filing Date:
April 17, 2020
Export Citation:
Assignee:
新▲鴻▼▲電▼子有限公司
International Classes:
G05F1/10; H01J37/06
Domestic Patent References:
| JP10163835A | ||||
| JP2006136056A | ||||
| JP2002290222A | ||||
| JP2002033648A | ||||
| JP2004126112A |
Foreign References:
| CN201928017U | ||||
| US20140376139 |
Attorney, Agent or Firm:
Nishikyo Keiichiro