Patent · US Expired

System for controlling the power of a high-voltage electron beam generator

US4314182A · kind A · utility

3Cited by

3References

2Claims

0Family size

Assignee

Leybold-Heraeus GmbH · DE

Inventors

Friedrich-Werner Thomas · Schliersee, DE
Wolfgang Sperzel · Gelnhausen, DE
Jurgen Petzoldt · Ilmenau, DE

Key dates

Filing date	May 27, 1980
Grant date	Feb 2, 1982
Priority date	—
Expiry date	May 27, 2000

Classification

Technology area (CPC H)Electricity
CPC primaryH01J37/243
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for the control of power of a high-voltage electron beam generator having a cathode and a control electrode for the cathode, has a controller at ground potential, a pulse generator for the production of square-wave voltage pulses symmetrical with ground potential, a transformer for transferring high-voltage potential to the beam generator including a primary winding substantially at ground potential and a secondary winding at high-voltage potential, a full-wave rectifier connected to the secondary winding and a filter connecting the rectifier to the cathode and to the control electrode. The filter comprises an LC combination of at least two LC members connected in series, in conjunction with at least two capacitors, one parallel to the cathode-control electrode and the other parallel to the full-wave rectifier, the resonance frequencies of the LC members being in a ratio of approximately 2:1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.