公开(公告)号：KR840002388B1

公开(公告)日：1984-12-24

申请号：KR810002579

申请日：1981-07-15

Applicant: RCA CORP

Inventor： GORDON IRWIN ,  WENDT FRANK S ,  SHAHBENDER SABAH ,  GRIES ROBERT J

IPC: H01F27/255 ,  G05F3/06 ,  H01F27/24 ,  H01F27/28 ,  H01F37/00 ,  H02M3/335 ,  H04N3/185 ,  H01F35/00

公开(公告)号：CA979524A

公开(公告)日：1975-12-09

申请号：CA173125

申请日：1973-06-04

Applicant: RCA CORP

Inventor： GRIES ROBERT J

IPC: H04N5/63

Abstract: The instant-on circuit cooperates with a horizontal deflection system of the type utilizing two bidirectionally conductive switching means which serve respectively as trace and commutating switches. When the on-off control for the television receiver is turned to its "ON" position, the two switches cooperate to provide those direct potentials needed for image or reproduction on the face of a picture tube kinescope. When the control is turned to its "OFF" position, on the other hand, the trace switch is inactivated, but the commutating switch continues to operate to provide a reduced filament voltage for the picture tube. A resistor-rectifier combination is included in series with the filament of the picture tube to provide a means by which the amplitude and ratio of the voltages applied to the filament between the "ON" and "OFF" conditions of the receiver can be controlled.

公开(公告)号：CA1177159A

公开(公告)日：1984-10-30

申请号：CA398531

申请日：1982-03-16

Applicant: RCA CORP

Inventor： SHAHBENDER RABAH ,  WENDT FRANK S ,  GORDON IRWIN ,  GRIES ROBERT J

IPC: G05F3/06 ,  H02M3/335 ,  H04N5/63

Abstract: RCA 76,945 A ferroresonant power supply having a relatively temperature stable output voltage includes a saturating magnetic element having a magnetizable core and a winding located thereon. A magnetizing current is developed in the winding by a high frequency source of alternating input voltage for generating an alternating magnetic flux in the magnetizable core that links the winding so as to develop an alternating polarity output voltage. A capacitor develops a circulating current that generates a magnetic flux in a core section associated with the winding that aids in magnetically saturating the core section to provide regulation of the alternating polarity output voltage by means of ferroresonant action. In order to temperature stabilize the output voltage, the magnetically saturating core section of the magnetic element is formed of a ferrospinel comprising a lithium ferrite or a substituted lithium ferrite. The lithium cation containing ferrospinels have desirable magnetic properties of a relatively small change in saturation flux density with temperature and, when properly manufactured, a low coercivity which results in a relatively small temperature rise above ambient temperature in the saturating element. When the ferroresonant power supply is used to generate an ultor voltage for the picture tube of a television receiver, the regulated alternating polarity output voltage may be stepped up and rectified to provide a regulated DC ultor voltage that is relatively temperature stable.

公开(公告)号：CA948327A

公开(公告)日：1974-05-28

申请号：CA170509

申请日：1973-05-07

Applicant: RCA CORP

Inventor： SMITH LAWRENCE E ,  GRIES ROBERT J

IPC: H04N3/16

公开(公告)号：CA977866A

公开(公告)日：1975-11-11

申请号：CA170399

申请日：1973-05-03

Applicant: RCA CORP

Inventor： GRIEPENTROG DAL F ,  GRIES ROBERT J

IPC: H04N5/63

Abstract: The instant-on circuit cooperates with a horizontal deflection system of the type utilizing two bi-directionally conductive switching means which serve respectively as trace and commutating switches. When the on-off control for the television receiver is turned to its "ON" position, the two switches cooperate to provide those direct potentials needed for image reproduction on the face of a picture tube kinescope. When the control is turned to its "OFF" position, on the other hand, the trace switch is inactivated, but the commutating switch continues to operate to provide a reduced filament voltage for the picture tube.

公开(公告)号：CA942431A

公开(公告)日：1974-02-19

申请号：CA111675

申请日：1971-04-28

Applicant: RCA CORP

Inventor： SMITH LAWRENCE E ,  GRIES ROBERT J

IPC: H04N3/233 ,  H04N3/16

Abstract: A raster correction circuit for a television receiver combines vertical deflection rate signals and high voltage representative signals and couples them to a control transistor which varies the bias on a regulator transistor to vary the energy supplied to the deflection circuit during each raster field in a manner to correct for side pincushion distortion.

公开(公告)号：DD206617A5

公开(公告)日：1984-02-01

申请号：DD23185081

申请日：1981-07-16

Applicant: RCA CORP

Inventor： GORDON IRWIN ,  SHAHBENDER RABAH ,  WENDT FRANK STARR ,  GRIES ROBERT J

IPC: H01F27/255 ,  G05F3/06 ,  H01F27/24 ,  H01F27/28 ,  H01F37/00 ,  H02M3/335 ,  H04N3/185 ,  H04N3/18

公开(公告)号：PL232240A1

公开(公告)日：1982-03-15

申请号：PL23224081

申请日：1981-07-16

Applicant: RCA CORP

Inventor： GORDON IRWIN ,  SHAHBENDER RABAH ,  WENDT FRANK S ,  GRIES ROBERT J

IPC: H01F27/255 ,  G05F3/06 ,  H01F27/24 ,  H01F27/28 ,  H01F37/00 ,  H02M3/335 ,  H04N3/185 ,  G05F

公开(公告)号：CA1112758A

公开(公告)日：1981-11-17

申请号：CA320543

申请日：1979-01-30

Applicant: RCA CORP

Inventor： PEER JOHN C ,  GRIES ROBERT J ,  NERO LEROY W ,  DIETZ WOLFGANG F W

IPC: G05F1/10 ,  G05F1/62 ,  H04N3/185 ,  H01J29/70

Abstract: An electronic regulator produces a regulated direct voltage less than the raw direct voltage input. The load on the regulated output is the primary winding of the horizontal output transformer of a television horizontal deflection circuit. A secondary winding of the output transformer is connected in series with the source of raw direct voltage. An energy storage capacitor is coupled across the secondary winding, and charged therefrom by a gated rectifier. The regulated output voltage is taken across the raw direct voltage source and capacitor. An overvoltage protection circuit for protecting against fault conditions is provided. The protection circuit includes a diode coupled between the regulated output voltage terminal and the raw input voltage terminal. The diode is normally back-biased and becomes conductive when a fault condition makes the regulated voltage exceed the raw input voltage. A resistor in series with the secondary winding controls circulating currents in the event of an overvoltage fault.

公开(公告)号：CA1044362A

公开(公告)日：1978-12-12

申请号：CA226582

申请日：1975-05-09

Applicant: RCA CORP

Inventor： GRIES ROBERT J

IPC: H04N3/16 ,  H03K4/83 ,  H04N3/185

Abstract: SWITCH DRIVE CIRCUIT FOR THYRISTOR DEFLECTION SYSTEM In a television deflection system employing a first SCR for coupling a deflection winding across a source of energy during a trace interval of each deflection cycle and a second SCR for replenishing energy to the source of energy during a commutation interval of each deflection cycle, a gating circuit for triggering the first SCR. The gating circuit employs a voltage divider coupled in parallel with the second SCR which develops gating signals proportional to the voltage across the second SCR.