Title:
【発明の名称】直線性補正偏向回路
Document Type and Number:
Japanese Patent JP2641191
Kind Code:
B2
Abstract:
A linearity correction circuit for correcting asymmetrical linearity errors of the line deflection current includes a resonant capacitor coupled to a first inductor for forming a resonant circuit having a resonant frequency greater than or equal to the deflection retrace frequency. A controllable switch coupled to the resonant circuit and to the deflection trace capacitor becomes conductive at the beginning of retrace to generate an oscillatory current pulse in the resonant circuit that removes a predetermined amount of charge from the trace capacitor during retrace. A second, relatively large valued inductor is coupled to the line deflection winding and is responsive to the deflection retrace pulse voltage for supplying during the trace interval a linearity correction current to the trace capacitor via the resonant capacitor.
Inventors:
PEETA EJUAATO HAFUAARU
Application Number:
JP28085485A
Publication Date:
August 13, 1997
Filing Date:
December 12, 1985
Export Citation:
Assignee:
AARU SHII EE TOMUSON RAISENSHINGU CORP
International Classes:
H03K4/90; H04N3/23; H04N3/233; (IPC1-7): H04N3/23
Domestic Patent References:
| JP4416934A | ||||
| JP536119U |
Attorney, Agent or Firm:
Tadahiko Ito (1 outside)