Patent · US Expired

Power supply unit including a pulse width modulated inverter, notably for an x-ray generator

US6072856A · kind A · utility

17Cited by

6References

10Claims

0Family size

Assignee

U.S. Phillips Corp. · US

Inventors

Heinz Van Der Broeck · Zülpich, DE
Wolfgang Rexhausen · Bleckede, DE
Bernhard Wagner · Fellbach, DE
Norbert Geerkens · Hamburg, DE

Key dates

Filing date	Jun 11, 1998
Grant date	Jun 6, 2000
Priority date	—
Expiry date	Jun 11, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a power supply unit which includes an inverter having output connections whereto the primary winding of a transformer is connected via a series capacitor. The rectified secondary voltage of this transformer is applied to a use which requires a high short-time power in a first mode of operation and a lower continuous power in a second mode of operation. The maximum permissible continuous power can be increased by means of an auxiliary inductance Lh which is active in the second mode of operation but inactive in the first mode of operation.

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