Abstract: A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core made of a magnetic material and disposed to face each other, a coil channel, and a sheet-like magnetic body by which a coupling portion between cores is put between the first core and the second core at an outer portion of the first and second cores. Each coil is wound around a leg through the coil channel in a lap winding manner such that the coils are overlapped on top of each other in the coil channel when seen in an axial direction. The sheet-like magnetic body extends from the coupling portion between coils into the coil channel and includes a portion arranged between coils located between the coils in the axial direction.

Abstract: A power generation device includes a first magnet member, a second magnet member which is disposed such that the N pole side thereof is in the opposite direction to the N pole side of the first magnet member, a yoke which is disposed between the first magnet member and the second magnet member, an induction coil which is disposed at an outer periphery of the yoke. When the first magnet member and the second magnet member slidingly move in synchronization or when the yoke slidingly moves, the direction of a magnetic flux flowing in the yoke changes to generate an electromotive force in the induction coil.

Abstract: An ion gun 11 supplies an Ar gas into a main body 111 from a gas inlet 114, causes DC hot cathode discharge between a filament 113 and an anode 112 to generate Ar plasma. Next, a voltage gradient is applied to separated accelerator grids 116a, 116b having a bi-separated configuration in an ion ejecting direction. The each potential of the separated accelerator grids 116a, 116b is independently controlled by independently setting accelerator control switches 121a, 121b on or off to change the potential of that of the separated accelerator grids 116a, 116b which corresponds to an ion beam to be disabled.

Abstract: The invention provides a circuit for controlling a cathode ray tube. The circuit comprises a source of input color signals (Uin(R), Uin(G), Uin(B)) for the primary colors of the cathode ray tube. Output amplifiers are coupled to the source of color input signals and to electron guns of the cathode ray tube. Finally, limiting means are provided to limit the color input signals to a predetermined threshold value. In this way the output amplifiers are prevented from saturation and undesirable smears do not appear on the screen. In an advantageous embodiment the limiting means are realized by a diode biased in reverse direction.

Abstract: In a deflection yoke for use in a color cathode ray tube receiver, two sets of sextuple pole coils formed of bifilar windings are disposed around the orbits of three electron beams emitted from an electron gun of a cathode ray tube. Horizontal-period parabolic currents produced in a bridge circuit consisting of saturable reactors are caused to flow in such sextuple pole coils. Further the parabolic currents are modulated at the vertical period by the saturable reactor. Then sextuple-pole magnetic fields are generated by the modulated parabolic currents to thereby exert vertical force on the three electron beams, hence realizing proper correction of &Dgr;VCR to consequently optimize the balance between the corners and the center of a screen. Such optimization is conventionally difficult due to some restrictions existing in the winding distribution of a vertical deflection coil and a horizontal deflection coil in relation to convergence and focus of side beams.

Abstract: In a cathode-ray tube including a modulator, the modulator has different settings in the intermediate portion and in the peripheral portions of the picture so that the change of inductance along the horizontal axis on the phosphor screen or the change of inductance along the vertical axis on the phosphor screen compensates the difference of distortion between the intermediate portion and the peripheral portions of the picture.

Abstract: A waveform correction system using inductance-controllable inductors suitable for use in the horizontal sweep circuits of televisions and computer displays includes a linearity correction coil (18) that is connected in parallel to the horizontal linearity coil (12) of the sweep circuit and used to selectively alter the inductance of the horizontal linearity coil (12) to correct for non-linearities in the horizontal sweep waveform. The linearity correction coil (18) has an input coil (20) cross-coupled to an output coil (22) through a core (24) with the output coil (22) connected in parallel with the horizontal linearity coil (12). The input coil (20) is connected between a control node (26) and circuit ground.

Abstract: A deflection yoke has a horizontal deflection coil and a saturable reactor connected to the horizontal deflection coil. The inductance of the saturable reactor is variable depending on a horizontal deflecting current flowing through the horizontal deflection coil or a vertical deflecting current supplied to the deflection yoke for varying a field distribution of a deflecting magnetic field produced by the horizontal deflection coil depending on the horizontal deflecting current or the vertical deflecting current.

Abstract: A variable linearity coil has a coil which is wound around a first core, a permanent magnet for charging a bias magnetic field to the first core, a bias magnetic field adjusting coil which is wound around a second core, and an electrically insulating base for mounting thereon the coil, the permanent magnet, and the magnetic field adjusting coil. The first core and the second core are placed one on top of the other with a non-magnetic and shock-absorbing spacer in between. Alternatively, the first core and the second core may be placed one on top of the other with a non-magnetic spacer in between, and a combination of the first core, the second core and the non-magnetic spacer is mounted on the base with a shock-absorbing spacer between the combination and the base.

Abstract: A linearity coil of a horizontal deflecting circuit includes a core; a winding connected in series to a horizontal deflecting coil and wound on the core; and a pair of permanent magnets respectively fixed to both ends of the core in the direction of increasing a magnetic force line induced to the core.

Abstract: An apparatus and method are disclosed for generating timing pulses to control various functions in a video monitor including the switching of video amplifiers in cathode ray tube (CRT) devices, the control of the phase and frequency of phase locked loops, etc. Unlike previous methods, where switching is timed and controlled by monitoring the retrace voltage level, the system of the present invention monitors the change in direction of current in the retrace tuning capacitor. Monitoring the retrace capacitor current, provides an extremely accurate method for timing in horizontal deflection circuits. The apparatus of the present the invention comprises a small bead inductor placed in the current path of a horizontal retrace capacitor within the horizontal deflection circuit of the cathode ray tube device. Measuring the voltage across the bead inductor allows a very precise monitoring of the current through the retrace tuning capacitor.

Abstract: A high-frequency horizontal deflection/high-voltage generation apparatus capable of setting inductance of a deflecting yoke without being affected by a collector voltage of a horizontal switching transistor and suppressing power loss while increasing a deflecting pulse voltage so that amplitude adjustment and side-pin correction can be effectuated without incurring any appreciable power loss. A voltage which is higher than the collector voltage V.sub.CP of the switching transistor is applied to the deflecting yoke. A resonant circuit is provided for applying to the deflecting yoke a voltage pulse of positive polarity and that of negative polarity, i.e., the voltage pulses bearing opposite phase relation to each other, for increasing equivalently the voltage applied across the deflecting yoke. The switching waveform outputted from the resonant circuit is synchronized with a switching operation of a high-speed switching element driven by a voltage induced in a winding of the deflecting transformer.

Abstract: Series connected first to fourth reactor coils are wound on a core and connected in series with a horizontal deflection coil. A coil is also wound on the core and connected in series with a vertical deflection coil. The core is provided with two permanent magnets and magnetic bias is applied to the first to fourth reactor coils. A total inductance of first to fourth reactor coils is controlled by a vertical deflection current passing through the coil, and thereby, a correction amount of an amplitude of a horizontal deflection current is changed.

Abstract: A linearity compensation circuit for a wide-screen television receiver which can uniformly compensate for a picture linearity that may be distorted due to variation of deflection current when a display mode is changed from a 4.times.3 aspect ratio (AR) to 16.times.9 AR, and vice versa. The linearity compensation circuit includes a variable linearity compensation coil which is connected to a horizontal deflection coil, and a control section for varying the inductance value of the variable linearity compensation coil according to change of the 4.times.3 AR and 16.times.9 AR display modes so as to compensate for the linearity of the picture displayed on a display screen.

Abstract: A horizontal linearity correction coil is used for a television receiver having a cathode ray tube of a wide deflection angle and has excellent productivity, quality and loading respectively. The ferrite magnetic core has the flanges at both ends and the middle and has a hollow shape at one winding core portion of the ferrite magnetic core. The windings are wound around the winding core portions and the permanent magnets are combined to both end flanges.

Abstract: An improved cathode ray tube yoke assembly and cathode ray tube system is capable of reducing or eliminating cathode ray tube geometrical image distortions caused by an inherent non-linear relationship between magnetic deflection fields inside the tube and electron beam spot deflection. The yoke assembly comprises horizontal and vertical windings for producing horizontal and vertical deflection fields and one or more non-linear magnetic elements. The magnetic elements produce a non-linear relationship between driving currents and magnetic deflection fields inside the tube which substantially compensates for the inherent non-linear relationship between deflection fields and electron beam spot deflection. In the preferred embodiment, the inductances of the yoke windings remain constant during operation.

Abstract: A convergence correcting device is disclosed in which a first correcting element varies an inductance of horizontal correcting coils so as to correct a misconvergence in a saturable region of a flux generated according to the horizontal correcting coils of the saturable reactor, and the second correcting element corrects a misconvergence by increasing a flux density at the vertical side of the saturable reactor after focusing magnetic fields generated from vertical correcting coils and the magnet.

Abstract: A deflecting apparatus includes a saturable reactor, and this saturable reactor is constituted by a first saturation control coil and a second saturation control coil for generating a magnetic field having an opposite polarity to that of the first saturation control coil. The first saturation control coil is connected to a resistor to form a first deflection current system, and the second saturation control coil is connected in series with a pair of diodes that are connected to have opposite polarities, thereby forming a second deflection current system connected in parallel with the first deflection current system. The first and second saturation control coils are magnetically coupled to first and second impedance control coils respectively connected to horizontal deflection coils.

Abstract: Linearity correction apparatus for a raster scanned cathode ray tube display device is presented. The apparatus comprises first means (16) for generating a correction signal to correct an asymmetric non linearity in a sawtooth electron beam line deflection current. The line deflection current is generated by a line timebase circuit for energising electromagnetic electron beam deflection coils of the cathode ray tube. The apparatus further comprises second means (70,90,91) cooperative with the first means (16) and responsive to a change in line timebase frequency for compensating a variation in the correction signal generated by the first means (16) in response to said change in line timebase frequency.

Abstract: In a high voltage generator comprising a flyback transformer having a primary winding and a secondary winding, a horizontal deflection circuit connected to the primary winding of the flyback transformer, and a rectifier diode connected to the secondary winding of the flyback transformer, a resonance circuit including a saturable transformer and a capacitor is inserted between the primary winding of the flyback transformer and a power source, and a signal corresponding to the value of a high voltage load current is applied to a control winding of the saturable transformer. When the value of the high voltage load current is very small, the resonance circuit resonates with a higher harmonic of a flyback pulse to remove this higher harmonic component. As the value of the high voltage load current increases, the inductance value of the secondary winding of the saturable transformer changes to change the resonance frequency of the resonance circuit.

Abstract: A horizontal deflection circuit for performing horizontal sweep operation of a CRT includes a saturable reactor having controlled windings connected through the primary winding of a flyback transformer to the CRT horizontal deflection coil, to supply deflection current thereto from a voltage supply produced from a voltage control circuit. The level of this supply voltage is controlled by feedback operation in accordance with the amplitude of pulses produced from an output winding of the flyback transformer such as to maintain this pulse amplitude at a fixed value, and hence maintain an EHT voltage derived from pulses from a secondary winding of the transformer at a fixed value. These fixed values are held constant when a DC current passed through the reactor control winding is varied to adjust the inductance of the controlled windings, and thereby adjust the horizontal sweep width produced on the CRT screen.

Abstract: A sawtooth current fed to a cathode ray tube horizontal deflection coil is linearized with a structure including first and second saturable cores respectively coupled to the north and south pole sides of a single permanent magnet. The permanent magnet is interposed between the cores so that a magnetic flux caused by the permanent magnet passes through the first and second saturable cores in series. First and second windings, respectively wound on the first and second saturable cores and connected in series with each other, are arranged such that, when a current flows through them in one direction, a magnetic flux induced by the first winding in the first core is added to the magnetic flux coupled by the permanent magnet in the first saturable core and the magnetic flux coupled by the permanent magnet to the second core is subtracted from magnetic flux induced by the second winding in the second core.

Abstract: A convergence correction apparatus comprises a pair of horizontal deflecting coils and a pair of vertical deflecting coils constituting a deflection yoke of a self-convergence system color picture tube, saturable reactors for correcting convergence error in horizontal lines by varying a distribution of a horizontal deflection magnetic field with time, auxiliary control coils coupled to the vertical deflecting coils and wound of the saturable reactors for varying inductances of coils of the saturable reactors by auxiliary control magnetic fields generated by the auxiliary control coils, and a correcting circuit for supplying to the auxiliary control coils a current which has a waveform other than a sawtooth waveform and has a period equal to the vertical deflection period, and for non-linearly varying magnitudes of the auxiliary magnetic fields generated thereby.

Abstract: A saturable reactor has a center control winding electromagnetically coupled to a pair of outer windings which, in turn, are each coupled in circuit with a respective toroidal shunt winding. The reactor provides side pincushion correction and eliminates center pinch in a raster scanned video display such as a cathode ray tube (CRT). The high inductance-to-resistance ratios of the toroidal windings as well as the shunt current paths permit increased deflection current to be provided to the horizontal deflection coils without saturating the reactor or requiring an increase in its size.

Abstract: A scanning CRT display system is disclosed in which transitions of a horizontal sync signal are directly utilized to provide control signals for driving a FET (field effect transistor) power drive device which controls horizontal deflection yoke current. Protection circuitry is provided such that the FET power drive device is turned off if excessive FET through current is sensed, and protection circuitry also prevents turning on the FET drive device if an excessively high flyback voltage is present at the drain terminal of the FET device. Linearization of the horizontal deflection yoke current is provided by effectively sensing the temperature variable on resistance of the FET output drive device and providing a compensation control signal in accordance therewith, wherein this compensation control signal controls the magnetization provided by a control winding on a saturable magnetic core on which a linearity compensation coil is also wound.

Abstract: A combined top and bottom pincushion and gullwing distortion correction circuit uses nonlinear reactor to introduce an appropriately modulated horizontal frequency and second harmonic of the horizontal frequency component into the vertical scanning current path. The nonlinear reactor functions as a transformer with a secondary that provides a correction voltage in series with the vertical scanning current path. The transformer effectively has two series opposing primary windings magnetically coupled to the secondary. These primaries, energized by waves at the horizontal frequency and the second harmonic frequency, alternately predominate over each other to a variable degree, and in a manner determined by the vertical scanning current, for inducing corresponding voltage at the secondary winding. The secondary winding is coupled to a first tuned circuit that generates a horizontal rate north-south pincushion correction component voltage of the total correction voltage.

Abstract: In a deflection yoke of self-convergence system for use with in-line type color picture tube, the intensity of a magnetic field, which causes the change in impedance of coils of saturable reactors respectively connected in series with two horizontal deflecting coils, is increased so that the variation rate of the inductance expressed in terms of a differential coefficient has the relationship of .theta.e/.theta.m.ltoreq.0.5 wherein .theta.m is a differential coefficient around the center of the picture where the degree of vertical deflection is very small and .theta.e is a differential coefficient at top and bottom sides of the picture where the degree of vertical deflection is maximum. In one embodiment, an auxiliary coil connected to the vertical deflection coils is employed in each of the saturable reactors so as to increase the intensity of the magnetic field applied to the saturable reactors.

Abstract: In a deflecting yoke of an in-line type color picture tube, a pair of saturable reactors responsive to vertical deflection is connected to the horizontal deflecting coils so that horizontal deflection currents respectively flowing in two horizontal deflecting coils are controlled differentially in accordance with the degree of the vertical deflection, thereby minimizing raster distortion. Each of the saturable reactors may comprise a series connection of two coils connected to the vertical deflecting coils, and another series connection of two coils connected to the horizontal deflecting coils. The first-mentioned series connection may be omitted by positioning the second-mentioned series connection so that leakage flux from the vertical deflecting coils can be picked up. The core or cores of each of the saturable reactors are magnetically biased by a permanent magnet.

Abstract: In a deflecting yoke of an in-line type color picture tube, a pair of saturable reactors responsive to vertical deflection is connected to the horizontal deflecting coils so that horizontal deflection currents respectively flowing two horizontal deflecting coils are controlled differentially in accordance with the degree of the vertical deflection, thereby minimizing raster distortion. Each of the saturable reactors may comprise a series connection of two coils connected to the vertical deflecting coils, and another series connection of two coils connected to the horizontal deflecting coils. The first-mentioned series connection may be omitted by positioning the second-mentioned series connection so that leakage flux from the vertical deflecting coils can be picked up. The core or cores of each of the saturable reactors is magnetically biased by means of a permanent magnet.

Abstract: A scan synchronized push-pull power supply for a television receiver has a source of direct voltage coupled to the primary winding of a power transformer. A first controllable switch of the power supply includes a main current path and a control terminal for controlling conduction in the main path. A second switch of the power supply includes a main current path with first and second terminals thereof. The main paths of the two switches are coupled to the primary winding in a push-pull arrangement. A deflection rate signal that is synchronized with scanning current generation is applied to the control terminal of the first switch to alternately switch conduction of its main current path between conductive and nonconductive states during each deflection cycle in synchronism with the scanning current generation.

Abstract: To regulate a supply voltage for a television receiver load circuit, such as the ultor voltage for a high voltage circuit, the primary winding of a transformer is coupled to a source of alternating input voltage for developing an alternating polarity voltage across a secondary winding of the transformer. A saturable reactor includes a magnetizable core with a reactor winding wound around the core. The reactor winding and the transformer secondary winding are conductively coupled to develop an alternating polarity voltage across the reactor winding. The transformer secondary winding is magnetically isolated from the saturable reactor such that the magnetic flux flowing in the reactor core does not link the transformer secondary winding. A capacitor is coupled to the saturable reactor winding for developing a circulating current that aids in magnetically saturating a portion of the reactor core associated with the reactor winding.

Abstract: A self-regulating power supply for a television receiver includes a transformer with a primary winding coupled to a source of input voltage for developing an alternating polarity supply voltage across a secondary winding. The supply voltage is stepped up, rectified and filtered to develop an ultor accelerating potential for the picture tube of the television receiver. A ferroresonant or self-regulating load circuit includes a saturable reactor having a winding coupled to the transformer secondary winding to provide regulation of the supply voltage, and thus, regulation of the ultor accelerating potential. The transformer secondary winding and the saturable reactor winding each comprises two winding sections, with each section having a terminal coupled to a common reference point, such as chassis ground.

Abstract: A ferroresonant power supply for a television receiver includes a saturable reactor having a magnetizable core and a winding located thereon. Exciting current for the saturable reactor is developed from a source of unregulated input voltage. A magnetic flux is generated in the magnetizable core that links the reactor winding to develop an alternating polarity output voltage. A capacitor develops a circulating current that generates a magnetizing force in a core section associated with the reactor winding. A permanent magnet biases the core to produce a second magnetizing force in the associated core section. The resultant of the two magnetizing forces develops a magnetic flux that substantially saturates the magnetizable material of the associated core section during each cycle of the alternating polarity output voltage to regulate the output voltage.

Abstract: A pincushion distortion correction saturable reactor is a saturable transformer comprising a core having four legs, controlled and control coils being coupled to the core legs in a perpendicular relation to each other. The core gap for the controlled coil is provided in an unbalanced form, and a parabolic current at the vertical scanning frequency (or at horizontal scanning frequency) containing a superimposed DC component is supplied through the control coil to modulate the inductance of the controlled coil. The inductance of the controlled coil is thus reduced in a region where the magnetomotive force produced by the control coil is greater than that produced by the control coil to preclude deflectional distortion in the neighborhood of the center of the reproduction on the screen and improve the horizontal linearity.

Abstract: The primary winding of a high leakage inductance transformer is coupled to a source of alternating input voltage to develop alternating polarity output voltages across tightly coupled secondary windings, including a high voltage winding of the transformer. Various DC supply voltages, including the ultor voltage, are derived from the secondary winding output voltages. To regulate the secondary winding output voltages, a ferroresonant circuit comprising a capacitor and a saturable reactor is coupled as a load circuit to one of the transformer secondary windings. When the saturable reactor magnetically saturates during each half cycle of the alternating polarity output voltage, a circulating current is generated and flows between the saturable reactor and the capacitor.

Abstract: A source of high frequency alternating input voltage is coupled to the primary winding of a high frequency low voltage ferroresonant transformer of a television receiver power supply. A capacitor is coupled across the secondary output winding of the ferroresonant transformer, and generates a circulating current that magnetically saturates the secondary core portion of the transformer to regulate the alternating polarity output voltage developed across the secondary output winding. A step-up high voltage transformer includes a primary winding and a high voltage secondary winding tightly coupled to the step-up transformer primary winding. The regulated alternating polarity output voltage developed by the low voltage ferroresonant transformer is coupled to the primary winding of the step-up high voltage transformer without prior DC rectification of the ferroresonant transformer output voltage.

Abstract: To provide linearity correction to horizontal scanning current, a linearity coil is coupled to the horizontal deflection winding of a horizontal deflection circuit. The magnetic structure of the linearity coil includes a magnetizable material with generally rectangularly cross-sectioned center and end sections. The faces of the end sections are oriented generally perpendicular to an axis of the center section thereby forming an H-bar core. The H-bar core is located inside a plastic coilform cup, with the sides of the cup generally conforming to the shape of the core. Permanent magnets for biasing the H-bar core are located at opposite ends of the coilform cup adjacent the end sections of the core. The linearity coil conductor turns are wound around the coilform cup over the center section of the H-bar core.

Abstract: In a color television receiver, field rate sawtooth current waves are supplied to vertical deflection windings by a vertical deflection output amplifier. The series combination of a deflection current sampling resistor and a DC blocking capacitor, coupled between the low potential terminal of the vertical deflection windings and a point of reference potential, is traversed by the field rate sawtooth current waves. The voltage across the series combination, comprising the sum of a field rate sawtooth voltage component and a field rate parabolic voltage component, is used as the drive voltage for the input winding of a saturable reactor effecting side pincushion distortion correction. The deflection current representative voltage developed by the sampling resistor is also utilized for a linearizing feedback purpose. The capacitor also serves a filtering function for the energizing potential supplied to the output amplifier.

Abstract: A horizontal deflection circuit in a television device comprises a circuit for generating a saw-tooth waveform current for horizontal deflection, a horizontal coil supplied with the saw-tooth waveform current thus generated, a saturable reactor type linearity coil having a winding connected in series with the horizontal deflection coil, and a circuit for substantially supplying a correction current to the winding of the linearity coil. The correction current thus supplied varies in response to a temperature variation so that the inductance value of the linearity coil will become constant irrespective of the temperature variation.

Abstract: Serially coupled first and second capacitors are charged from a DC source of unregulated input voltage through the primary winding of a flyback transformer of a horizontal deflection circuit. The voltage across the first capacitor is established as the voltage difference between the input voltage and the voltage across the second capacitor. The first capacitor functions as a trace capacitor for a horizontal deflection winding. A switch couples a trace voltage to the horizontal deflection winding to generate a trace deflection current. The switch also couples a first winding of a saturable reactor to the second capacitor to provide a capacitor discharge current path. A bias current flowing in a second winding of the saturable reactor varies the effective inductance of the first winding in response to energy level changes in the deflection circuit to control the voltage across the second capacitor.

Abstract: First and second capacitors are charged from a DC source of unregulated input voltage through the primary winding of a flyback transformer of a horizontal deflection circuit. The average voltage across the first capacitor is established as the voltage difference between the input voltage and the average voltage across the second capacitor. The first capacitor functions as a trace capacitor for a horizontal deflection winding. A switch applies a trace voltage to the horizontal deflection winding to generate a trace deflection current. The switch also applies the voltages developed across the second capacitor and across a flyback transformer secondary winding to a regulator inductance to control the flow of current in the second capacitor. The current flowing through the inductance is varied in order to control the voltage across the second capacitor for regulating a selected deflection circuit quantity.

Abstract: A trace switch including a horizontal output transistor is coupled across the series arrangement of a horizontal deflection winding and trace capacitor. The trace capacitor is charged from a source of unregulated DC input voltage through the primary winding of a flyback transformer. The emitter of the horizontal output transistor is coupled to ground through a first winding of a second transformer. A second capacitor is coupled between ground and the series arrangement of the deflection winding and trace capacitor. The average trace voltage across the trace capacitor is constrained to assume the difference in voltage between the unregulated input voltage and the voltage developed across the second capacitor. The charge/discharge cycle of the second capacitor is controlled by the current flowing in the second transformer.

Abstract: A linearity inductance and a side pincushion correction inductance are wound on outer leg core portions of a single E-core. A magnet biases the linearity inductance core portion for saturating that portion each horizontal deflection cycle for producing a linearity corrected horizontal deflection current. A high reluctance path for flux mutually linking both the linearity and side pincushion correction windings is provided by the E-core configuration. The portion of the flux generated by the side pincushion correction winding that does flow in the linearity winding core portion compensates for undesirable vertical rate changes in the magnetic bias of the linearity winding core portion.

Abstract: To regulate the DC input voltage to a deflection circuit, a saturable reactor winding is series coupled with an unregulated DC voltage, a diode, a flyback transformer winding and an input terminal of the deflection circuit. During retrace, the diode is forward biased and conducts input current to the input terminal. During trace, the opposite polarity trace voltage commutates off the diode and decouples the input terminal from the unregulated DC voltage at a varied instant within trace in accordance with the impedance of the saturable reactor winding. The average DC voltage across the diode fluctuates with diode conduction angle variations and maintains a regulated input voltage at the input terminal despite fluctuations in the unregulated DC voltage.

Abstract: A source of unregulated voltage and a source of rectified deflection rate alternating current voltage is coupled to a deflection circuit. A magnetic switching structure includes two loading windings series coupled with the source of deflection rate voltage. A control circuit developes a bias current in a control winding which permits the load windings to alternately magnetically saturate within each deflection cycle to switch controlled amounts of energy to the deflection circuit.

Abstract: A wide-angle kinescope deflection arrangement using an S-capacitor for correction over a major central portion of the scan has a residual compression of the display at the extremes of the scan. A saturable reactor is coupled in series with the deflection winding and saturates near the extremes of the scan due to the large deflection current. The reduced impedance of the reactor in series with the deflection winding causes the time rate of change of the deflection current to increase at the scan extremes and thereby linearizes the display.

Abstract: In a top-bottom pincushion correction circuit having a saturable reactor with a control winding coupled to a source of deflection current at a horizontal scan frequency and an output winding coupled to a source of deflection current at a vertical scan frequency, a means coupled to the control winding unbalances the waveform applied thereto from the source of deflection current at a vertical scan frequency to provide asymmetric top-bottom pincushion correction.

Abstract: A supply circuit for television receivers in which power source isolation is effected via a backward transformer. For the sake of achieving an insusceptibility to interferences, the operating frequency is equal to the line frequency. According to the invention, the supplied energy is controlled by varying the switch-on time during one period of the line frequency, in that the disconnecting time position is changed with the aid of a thyristor switching stage.

Abstract: Line deflection circuit in which the deflection coil is east-west modulated. In order to cancel an east-west dependent horizontal linearity defect the inductance value of the linearity correction coil is made independent of the field frequency, for example by means of a compensating current. In an embodiment this current is supplied by the shunt coil of the east-west modulator.

Abstract: Side pin-cushion distortion in the display system of a television receiver is corrected by circuitry which includes an "E" core saturable reactor having equal air gaps in a pair of outer legs and an ungapped center leg with a control winding fed by a vertical scan signal source affixed to the central leg and impedance windings fed by a horizontal scan signal source affixed to the outer legs whereby the inductance level of the outer legs is reduced while the change in inductance due to current changes in the control winding remains substantially constant.