Horizontal deflection circuit for television receivers

Claim 2

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; and an electronic switch means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods said additional periods being determined by the energy being supplied by the supply circuit.

Claim 3

A horizontal deflection circuit, according to claim 1, wherein said electronic switch means comprises a thyristor.

Claim 4

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; and an electronic switch means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods and subsequent thereto, said additional periods of time being determined by the energy being supplied by the supply circuit.

Claim 5

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; and an electronic switch means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods and subsequent thereto, said additional periods of time being determined by the energy being supplied by the supply circuit.

Claim 6

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; anD an electronic switch means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods and prior thereto, said additional periods of time being determined by the energy being supplied by the supply circuit.

Claim 7

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; anD an electronic switch means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods and prior thereto, said additional periods of time being determined by the energy being supplied by the supply circuit.

Claim 8

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; means for sensing beam current and the level of high voltage flyback pulses generated in the final stage; means responsive to the sensed beam current and flyback pulse level for providing a pulse output having a duration corresponding thereto; and electronic switch means responsive to the pulse output from the last mentioned means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods, said additional periods of time corresponding to the duration of the pulse output from the last mentioned means.

Claim 9

A horizontal deflection circuit for a television receiver having a horizontal final stage including means for controlling line sweep and commutation, the energy required by said horizontal final stage being provided by a controllable supply circuit which comprises: a source of d.c. energy; a storage inductance connected in series with said d.c. source, said line sweep and commutation control means formed and arranged to apply d.c. energy to the storage inductance from the d.c. source during predetermined periods; means for sensing beam current and the level of high voltage flyback pulses generated in the final stage; means responsive to the sensed beam current and flyback pulse level for providing a pulse output having a duration corresponding thereto; and electronic switch means responsive to the pulse output from the last mentioned means for applying d.c. energy to the storage inductance from the d.c. source during additional periods of time in addition to the predetermined periods, said additional periods of time corresponding to the duration of the pulse output from the last mentioned means.

Claim 10

A horizontal deflection circuit as described in claim 3 wherein said electronic switch means comprises a thyristor.

Claim 11

A horizontal deflection circuit as described in claim 4 wherein said electronic switch means comprises a thyristor.

Claim 12

A horizontal deflection circuit as described in claim 5 wherein said electronic switch means comprises a thyristor.

Claim 13

A horizontal deflection circuit, according to claim 3, additionally comprising: means for sensing beam current and the level of high voltage flyback pulses generated in the final stage; and means responsive to the sensed beam current and flyback pulse level for providing a pulse output having a duration corresponding thereto, said electronic switch means being responsive to the pulse output for controlling the duration of the additional periods of time during which d.c. energy is applied to the storage inductance.

Claim 14

A horizontal deflection circuit, according to claim 4, additionally comprising: means for sensing beam current and the level of high voltage flyback pulses generated in the final stage; and means responsive to the sensed beam current and flyback pulse level for providing a pulse output having a duration corresponding thereto, said electronic switch means being responsive to the pulse output for controlling the duration of the additional periods of time during which d.c. energy is applied to the storage inductance.