Patent ID: 7030575
Filing Date: 2006-04-18
Classification: H04N

Abstract:
1. A video display apparatus, comprising: a deflection circuit output stage for selectively generating a deflection current in a deflection winding at a first deflection frequency and at a second deflection frequency; a power supply for producing via a common power transistor of an output stage a first supply voltage at a first terminal and a second supply voltage at a second terminal; a first switch responsive to a control signal that is indicative of the selected deflection frequency for selectively coupling to said deflection circuit output stage, said first supply voltage, when said first deflection frequency is selected, and said second supply voltage, when said second deflection frequency is selected; and a power supply regulator responsive to at least one of said first and second supply voltages for regulating said at least one of said first and second supply voltages via a negative feedback path.