Patent · US Expired

Demagnetizing circuit

US6650526B2 · kind B2 · utility

2Cited by

3References

21Claims

0Family size

Assignee

Micronas GmbH · DE

Inventor

Peter Preller · Hersbruck, DE

Key dates

Filing date	Mar 23, 2001
Grant date	Nov 18, 2003
Priority date	—
Expiry date	Apr 15, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04N9/29
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

For achieving a desired course in the demagnetizing circuit (I1) and power dissipation that is as low as possible during continuous operation of a color television set, a demagnetizing circuit for controlling the demagnetizing current (I1) includes two transistors (T1, T2) that are controlled via a common or via two separate capacitive voltage dividers (C1-C4). A rectified alternating voltage is applied to the capacitive voltage dividers (C1-C4). The demagnetizing current (I1) controlled by the transistors (T1, T2) is supplied to a demagnetizing coil (R4).

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