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公开(公告)号：KR800000274B1
公开(公告)日：1980-04-09
申请号：KR750000626
申请日：1975-03-25
Applicant: RCA CORP
Inventor： DIETZ W
IPC: H01J29/56
Abstract: In a raster correction circuit, impedance in controlled by a parabolic vertical rate waveform (50) to alter the charging rate of a storage capacitor(42) coupled to the rectifier(39) for supplying the vertical operating current. The parabolically varying rectifier current alters the loading of the horizontal transformer(20) and alters the horizontal scanning current at a vertical rate in a manner to correct for side pincushion distortion.
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公开(公告)号：US3740474A
公开(公告)日：1973-06-19
申请号：US3740474D
申请日：1971-11-01
Applicant: RCA CORP
Inventor： DIETZ W
CPC classification number: H04N3/1856 , H02M3/315 , H03K4/83
Abstract: Direct operating voltages for a television receiver are derived from an associated line scanning circuit of the type employing semiconductor (e.g., SCR) trace and commutating switches, each of which conducts for a portion of each line scanning interval. One voltage supply is derived by means of a full wave rectifier circuit coupled to an input inductance, the inductance being coupled from a main direct operating voltage source to a circuit point intermediate the trace and commutating switches. Additional direct voltages are derived by rectifying flyback pulses produced across various segments of an associated scanning output transformer. At least one of the flyback pulse rectifying circuits includes an arrangement of inductance and capacitance coupled to the associated rectifier for constraining conduction of the rectifier mainly to the first half of the flyback pulse. The derived voltages are relatively insensitive to changes in beam current and line voltage and, furthermore, do not deleteriously affect operation of the scanning circuit.
Abstract translation: 用于电视接收机的直接工作电压源自采用半导体（例如，SCR）迹线和换向开关的相关行扫描电路，每一行扫描电路都导通每行扫描间隔的一部分。 一个电压源通过耦合到输入电感的全波整流电路导出，电感从主直接工作电压源耦合到轨迹和换向开关之间的电路点。 通过整流在相关联的扫描输出变压器的不同段上产生的回扫脉冲导出附加的直流电压。 回扫脉冲整流电路中的至少一个包括耦合到相关联的整流器的电感和电容的布置，用于将整流器的导通约束到主回扫脉冲的前半部分。
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公开(公告)号：US3832595A
公开(公告)日：1974-08-27
申请号：US34429673
申请日：1973-03-23
Applicant: RCA CORP
Inventor： DIETZ W
CPC classification number: H03K4/83 , H04N3/185 , H04N3/1856
Abstract: A boosted B+ regulator in a horizontal deflection system adds a voltage derived from the deflection system to the line-rectified direct current voltage supplying the deflection system in such amount as to maintain a substantially constant boosted B+ supply voltage in the presence of variations of line voltage. Variations of the line-rectified voltage are sensed by a reference voltage network and added to a constant ramp voltage, the combination of voltages being applied to control the period of conduction of an active current conducting device which permits energy derived from the deflection system to be added to the line-rectified voltage supply for maintaining a regulated boosted supply voltage for the deflection system. In one embodiment the energy derived from the deflection system is half-wave rectified by the active current conducting device. In a second embodiment the energy is full-wave rectified by the combination of the active current conducting device and an oppositely poled unidirectional current conducting device.
Abstract translation: 在水平偏转系统中升压的B +调节器将从偏转系统导出的电压与线路整流的直流电压相加，以提供偏转系统，使得在存在电压变化的情况下保持基本恒定的升压B +电源电压 。 线路整流电压的变化由参考电压网络感测并被添加到恒定的斜坡电压，施加的电压的组合用于控制有源电流导电装置的导通周期，其允许从偏转系统导出的能量为 添加到线路整流电压源中，用于维持偏转系统的稳压升压电源电压。
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4.发明授权
公开(公告)号：US3825793A
公开(公告)日：1974-07-23
申请号：US32961773
申请日：1973-02-05
Applicant: RCA CORP
Inventor： DIETZ W
Abstract: A raster correction circuit for a color television receiver provides side pincushion correction by utilizing a parabolically varying load circuit coupled in parallel relation with the horizontal yoke. In one embodiment, the load circuit includes a capacitor and a transistor driven by a vertical deflection frequency signal to be conductive during a portion of the vertical scan interval coupled across a direct voltage blocking capacitor which is serially coupled to the horizontal output transformer. In another embodiment, an additional winding on the horizontal output transformer is loaded parabolically by the variable loading circuit to provide the desired correction. In a third embodiment, a direct current voltage derived from a winding of the horizontal output transformer serves as the power supply for the vertical deflection stage. The vertical deflection stage loads the horizontal winding in a manner to provide side pincushion correction.
Abstract translation: 用于彩色电视接收机的光栅校正电路通过利用与水平轭平行关系耦合的抛物线变化的负载电路来提供侧枕形校正。 在一个实施例中，负载电路包括电容器和由垂直偏转频率信号驱动的晶体管，在垂直扫描间隔的一部分耦合跨越串联耦合到水平输出变压器的直流电压阻断电容器的部分，导通。 在另一个实施例中，水平输出变压器上的附加绕组被可变负载电路抛物线地加载以提供期望的校正。 在第三实施例中，从水平输出变压器的绕组导出的直流电压用作垂直偏转级的电源。 垂直偏转台以提供侧枕形校正的方式加载水平绕组。
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Patent Agency Ranking
公开(公告)号：ZA746655B
公开(公告)日：1975-11-26
申请号：ZA746655
申请日：1974-10-21
Applicant: RCA CORP
Inventor： DIETZ W
Abstract: 1481518 D.C.-D.C. converting RCA CORPORATION 18 Oct 1974 [23 Oct 1973] 49217/73 Heading H2F [Also in Division H3] In or for a TV receiver, a mains-isolated power supply and line deflection circuit comprises a rectifier 203 coupled to the A.C. mains terminal without a transformer and feeding a smoothing circuit 204 ... 206 which supplies D.C. to a line deflection circuit of the type comprising a bidirectional trace switching device 221, 223 coupled via isolating windings of deflection transformer 230 to a bi-directional retrace switching device 209, 210 coupled to the output of rectifier 203. At least one secondary winding on the line deflection transformer 230 may provide D.C. supply for the rest of the receiver with respect to a reference potential (e.g. ground) isolated from the A.C. mains. As described, a small mains transformer 265 with rectifier 268 provides D.C. for the horizontal oscillator 275 the output of which is coupled via a further isolating transformer 280 to the retrace SCR 209 and directly to the trace SCR 221. At the beginning of each line, trace damper diode 223 is forward biased by the energy stored in line deflection windings 252 at the end of the previous retrace interval. Capacitor 225 and S-shaping capacitor 251 are charged via diode 223. At approximately midway through the line interval, diode 223 becomes reverse biased and SCR 221, previously gated by the horizontal oscillator 275, becomes conductive, reversing the current in windings 230 and in the deflection coils 252. Shortly before the beginning of the retrace interval, SCR 209 is turned on so that capacitor 214 discharges through windings 212 and 230a, the voltage across 230c reverse biasing SCR 221 and causing current to flow in diode 223. Diode 223 then becomes reverse biased and after a further oscillation, the fly-back is terminated by further conduction of diode 223, initiating the next line interval. Inductor 212 may be replaced by the leakage inductance of transformer 230. The fly-back pulses across winding 230b are rectified by a multiplier 260 to provide EHT for the anode of the cathode-ray tube. Trace waveforms across capacitor 246 and across winding 230d are available for supplying other parts of the receiver. In Fig. 1 (not shown) SCR 221 and diode 223 are connected on the primary side of the deflection transformer 230, SCR 221 being triggered by a winding coupled to inductor 208.
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公开(公告)号：BR7500490A
公开(公告)日：1975-11-04
申请号：BR7500490
申请日：1975-01-24
Applicant: RCA CORP
Inventor： DIETZ W
Abstract: A bosted B+ regulator in a horizontal deflection system comprises a controlled rectifier coupled to a winding in the deflection system for rectifying voltage generated therein and adding it to the line-rectified voltage for providing a constant boost voltage for operation of the deflection system in the presence of line voltage fluctuations. A zener diode is coupled between the rectified line voltage and the rectified boost voltage and to a control electrode of a switching device such as an SCR. Normal deflection system starting current is coupled through a junction of the SCR and through the zener diode in the forward direction. When the boost voltage exceeds a predetermined level, the zener diode breaks down, causing the SCR to conduct which in turn provides a short circuit across the rectifier and its associated winding for disabling operation of the deflection system.
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公开(公告)号：ZA71467B
公开(公告)日：1971-10-27
申请号：ZA71467
申请日：1971-01-25
Applicant: RCA CORP
Inventor： DIETZ W
Abstract: 1333164 Correcting sawtooth waveforms RCA CORPORATION 15 Jan 1971 [27 Jan 1970] 2095/71 Heading H3T The sawtooth current in a deflection yoke is linearized by connecting a first inductor and a saturable inductor in parallel and in series with the yoke, the inductors being conductive for non-coincidence periods. The Figure shows a sawtooth current generator in which, during the first part of the stroke, the energy in the deflection coils 31 is discharged via a diode 30 and a large capacitor 49. The resistance voltage drop adds to the changing voltage 'across the capacitor and linearity correction is not necessary. At some point during the stroke a thyristor 29 is fired. The yoke current reverses and passes through a diode 43 and a saturable inductor, the impedance so changing with yoke current as to effect linearity correction. In Figs. 2 and 3 inductor 41 is connected to a tap on the saturable inductor and the diode is connected in reverse sense in series with the non-saturating inductor. Thyristor 21 is for commutating thyristor 29 Transformer 50 supplies the E.H.T. circuit.
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