公开(公告)号：IT1137796B

公开(公告)日：1986-09-10

申请号：IT2335581

申请日：1981-08-03

Applicant: RCA CORP

Inventor： LUZ DAVID WARREN ,  WILLIS DONALD HENRY

IPC: H04N3/16 ,  H04N3/18 ,  H04N3/185 ,  H01J

Abstract: A primary winding of a power transformer is coupled to a source of DC voltage. First and second controllable switches are coupled to the primary winding in a push-pull arrangement. A control circuit responsive to a deflection rate input signal that is synchronized with deflection circuit scanning applies a turn-off switching signal alternately to the two controllable switches during each deflection cycle. In response to the turnoff of each one of the two controllable switches, a turn-on switching signal is applied to the other switch to develop a deflection rate alternating polarity output voltage across an output winding of the power transformer. The output voltage is rectified and applied to a deflection generator to thereby energize the generator into developing scanning current in a deflection winding.

公开(公告)号：GB2151866A

公开(公告)日：1985-07-24

申请号：GB8431540

申请日：1984-12-13

Applicant: RCA CORP

Inventor： WILLIS DONALD HENRY ,  LUZ DAVID WARREN

IPC: H04N3/233 ,  H04N3/23

Abstract: An S-correction circuit for a video display apparatus provides switchable amounts of correction in a given line deflection interval in order to satisfy the requirements of cathode ray tubes having large deflection angles or faceplates having complex curvatures. A second S-shaping capacitor (42) is coupled in parallel with the main S-shaping capacitor (16) by action of a switching transistor (40). The time at which the transistor (40) is switched may be controlled, for example, by modulating the switching point at a vertical rate, in order to increase the flexibility of the correction circuit.

公开(公告)号：FI63142C

公开(公告)日：1983-04-11

申请号：FI773704

申请日：1977-12-08

Applicant: RCA CORP

Inventor： FERNSLER RONALD EUGENE ,  PEER JOHN CHARLES ,  LUZ DAVID WARREN

IPC: H04N3/18

公开(公告)号：FI812365L

公开(公告)日：1982-02-05

申请号：FI812365

申请日：1981-07-28

Applicant: RCA CORP

Inventor： LUZ DAVID WARREN ,  WILLIS DONALD HENRY

IPC: H04N3/16 ,  H04N3/18 ,  H04N3/185 ,  H04N

Abstract: A primary winding of a power transformer is coupled to a source of DC voltage. First and second controllable switches are coupled to the primary winding in a push-pull arrangement. A control circuit responsive to a deflection rate input signal that is synchronized with deflection circuit scanning applies a turn-off switching signal alternately to the two controllable switches during each deflection cycle. In response to the turnoff of each one of the two controllable switches, a turn-on switching signal is applied to the other switch to develop a deflection rate alternating polarity output voltage across an output winding of the power transformer. The output voltage is rectified and applied to a deflection generator to thereby energize the generator into developing scanning current in a deflection winding.

公开(公告)号：FI780147A

公开(公告)日：1978-07-25

申请号：FI780147

申请日：1978-01-17

Applicant: RCA CORP

Inventor： PEER JOHN CHARLES ,  LUZ DAVID WARREN

IPC: H04N3/16 ,  H01J29/70 ,  H04N3/22 ,  H04N3/223 ,  H04N5/63 ,  H04N

Abstract: A voltage regulator provides a regulated B+ voltage to the horizontal deflection circuit of a television receiver. A positive feedback loop senses the load current drawn by the deflection circuit. The positive feedback voltage increases the magnitude of a reactive impedance component of the voltage regulator as the load current increases in order to maintain a substantially constant raster width.

公开(公告)号：DE2508604A1

公开(公告)日：1975-08-28

申请号：DE2508604

申请日：1975-02-27

Applicant: RCA CORP

Inventor： LUZ DAVID WARREN

IPC: H04N3/18 ,  H02M3/335 ,  H04N3/16 ,  H04N5/63

Abstract: A horizontal deflection system is operable either from rectified and filtered alternating current line voltage or from a substantially lower voltage direct current voltage source. The need for a step-down transformer in the receiver power supply is eliminated by utilizing the horizontal output transformer to drop the rectified and filtered alternating current voltage when the receiver is operated in the alternating current line mode. The horizontal output transformer is utilized as a step-up inverter when the receiver is operated from the low voltage direct current source to produce a direct current voltage at a point on the horizontal output transformer substantially equal to the rectified and filtered alternating current line voltage.

公开(公告)号：DE2337800A1

公开(公告)日：1974-02-07

申请号：DE2337800

申请日：1973-07-25

Applicant: RCA CORP

Inventor： LUZ DAVID WARREN

IPC: H04N3/16 ,  H03K4/64

Abstract: A transformerless coupled driver-to-output stage deflection circuit in which initial driver stage operating current is obtained from a relatively high voltage receiver power supply to initiate operation of the deflection circuit. A relatively low voltage supply is derived from the deflection output stage and coupled to the driver stage such that the greater portion of the driver stage operating current is supplied by the relatively low voltage supply during normal operation.

公开(公告)号：DE2257517A1

公开(公告)日：1973-05-30

申请号：DE2257517

申请日：1972-11-23

Applicant: RCA CORP

Inventor： LUZ DAVID WARREN

IPC: H04N5/68 ,  H04N5/63 ,  H04N5/44

Abstract: A single pole switching arrangement maintains the filament of the cathode-ray kinescope of a television receiver at full power when the set is turned to an "ON" condition and connected to an alternating current power source, but operates the filament at half power when the set is turned to its "OFF" state. When the receiver is connected to a direct current power source, on the other hand, no filament power is used when the single pole arrangement switches the set to its "OFF" condition, thereby extending the number of viewing hours between direct current battery re-charges, for example. Switching the single pole arrangement to turn the receiver to its "ON" state when the set is connected to the direct current source once again applies full power to the kinescope filament.