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    • 2. 发明授权
    • Frequency controlled resonant regulator
    • 频率控制谐振调节器
    • US4631652A
    • 1986-12-23
    • US676821
    • 1984-11-30
    • Frank S. Wendt
    • Frank S. Wendt
    • H02M3/28H02M7/5383H02M7/53846H02M3/335
    • H02M3/3376H01F27/38H01F17/043H01F38/08H02M2001/0032H02M2001/0058H02M2001/009H04N5/63Y02B70/1433Y02B70/1491Y02B70/16
    • The primary winding of a high leakage inductance power tranformer is coupled to a source of unregulated voltage and to a square wave voltage generator that includes first and second alternately conducting output switching transistors. A voltage controlled oscillator establishes the operating frequency of the voltage generator. A resonating capacitor is coupled to a transformer secondary winding that is loosely coupled with the primary winding. The capacitor forms a series tuned circuit with the leakage inductance between the primary and secondary windings of the transformer. The operating point of the tuned circuit voltage verses frequency characteristic curve determines the amplitude of the generally sinusoidal output voltage across the secondary winding, in accordance with the operating frequency of the square wave voltage generator. A feedback circuit senses the amplitude of the output voltage and varies the frequency of the voltage controlled oscillator to regulate the output voltage.
    • 高漏电感功率变压器的初级绕组耦合到不稳定电压源,并耦合到包括第一和第二交替输出开关晶体管的方波电压发生器。 压控振荡器建立电压发生器的工作频率。 谐振电容器耦合到与初级绕组松耦合的变压器次级绕组。 电容器形成串联调谐电路,其中变压器的初级和次级绕组之间的漏电感。 调谐电路电压的工作点与频率特性曲线根据方波电压发生器的工作频率确定次级绕组两端的大致正弦输出电压的振幅。 反馈电路感测输出电压的幅度,并改变压控振荡器的频率以调节输出电压。
    • 3. 发明授权
    • Self-regulating saturating core television receiver power supply
    • 自调节饱和核心电视接收机电源
    • US4471271A
    • 1984-09-11
    • US348902
    • 1982-02-16
    • Frank S. Wendt
    • Frank S. Wendt
    • G05F3/06H01F29/14H02M3/337H01J29/70
    • H01F29/14G05F3/06H02M3/3372H01F2038/026
    • A self-regulating, saturating core power supply for a television receiver includes a magnetizable core having first, second and third core sections. A primary winding is wound around the first core section and an output secondary winding is wound around the second core section. The third core section provides a magnetic circuit path for magnetic flux lines that link both windings. The primary winding is coupled to a source of alternating input voltage for developing an alternating polarity output voltage across the secondary winding. A resonating capacitor is coupled to the secondary winding for generating a current therein that aids in producing substantial magnetic saturation of the third core section twice during each cycle of the alternating polarity output voltage to thereby regulate the output voltage. The second core section remains substantially unsaturated during the entirety of each cycle. The regulated output voltage may be used to develop direct supply voltages for the television receiver such as the B+ scan supply voltage and the ultor high voltage.
    • 用于电视接收机的自调节饱和核心电源包括具有第一,第二和第三核心部分的可磁化核心。 初级绕组缠绕在第一芯部分周围,并且输出次级绕组缠绕在第二芯部分上。 第三核心部分为连接两个绕组的磁通线提供磁路路径。 初级绕组耦合到交流输入电压源,用于在次级绕组上形成交流极性输出电压。 谐振电容器耦合到次级绕组,用于在其中产生电流,其有助于在交替极性输出电压的每个周期期间两次产生第三芯部分的基本磁饱和,从而调节输出电压。 第二核心部分在每个周期的整个过程中保持基本不饱和。 调节输出电压可用于为电视接收机开发直接电源电压,例如B +扫描电源电压和阳极高压。
    • 4. 发明授权
    • Television receiver ferroresonant power supply using a two-material
magnetizable core arrangement
    • 电视接收机铁磁谐振电源采用双材料可磁化的核心装置
    • US4390819A
    • 1983-06-28
    • US250130
    • 1981-04-02
    • William E. BabcockFrank S. Wendt
    • William E. BabcockFrank S. Wendt
    • H01F19/04H01F38/42H02M3/335H04N3/18H04N3/185H01J29/70
    • H04N3/18H02M3/33569
    • A high voltage ultor power supply for a television receiver includes a ferroresonant transformer that is capable of operating over a substantial range of temperature without thereby introducing undesirably large changes in the ultor voltage. The ferroresonant transformer comprises a plurality of windings, a magnetizable core with first and second core sections, and a resonating capacitor. A first of the plurality of windings is wound on the first core section and coupled to a source of exciting current for generating magnetic flux in the core. A second of the plurality of windings is wound on the second core section. The varying magnetic flux that links the second winding generates an alternating polarity output voltage across that winding. To regulate the output voltage, the capacitor is coupled to one of the plurality of windings and develops a circulating current to produce a magnetic flux that aids in magnetically saturating the second core section. The first core section is operated in the magnetically unsaturated or linear region of the B-H loop characteristic of the magnetizable material forming the first core section. A high voltage circuit, responsive to the regulated output voltage, develops the television receiver ultor voltage. The material of the magnetically saturating second core section is selected to have a higher Curie temperature than that of the nonsaturating first core section, resulting in relatively small temperature dependent changes of the ultor voltage.
    • 用于电视接收机的高压太阳能电源包括能够在相当大的温度范围内操作的铁磁共振变压器,而不会引起阳极电压的不期望的大的变化。 铁共振变压器包括多个绕组,具有第一和第二磁芯部分的可磁化铁心和谐振电容器。 多个绕组中的第一绕组缠绕在第一芯部分上并且耦合到用于在芯中产生磁通量的励磁电流源。 多个绕组中的第二绕组缠绕在第二芯部上。 连接第二绕组的变化的磁通在该绕组上产生交替的极性输出电压。 为了调节输出电压,电容器耦合到多个绕组中的一个绕组并且产生循环电流以产生有助于使第二磁芯部分磁饱和的磁通量。 第一芯部分在形成第一芯部分的可磁化材料的B-H环特性的磁不饱和或线性区域中操作。 高压电路响应于调节的输出电压,开发出电视接收器阳极电压。 选择磁饱和第二芯部的材料具有比非饱和的第一芯部更高的居里温度,导致阳极电压的相对较小的温度依赖性变化。
    • 5. 发明授权
    • Television receiver ferroresonant high voltage power supply using
temperature stable core material
    • 电视接收机铁磁谐振高压电源采用温度稳定的芯材
    • US4424469A
    • 1984-01-03
    • US250131
    • 1981-04-02
    • Babah ShahbenderFrank S. WendtIrwin GordonRobert J. Gries
    • Babah ShahbenderFrank S. WendtIrwin GordonRobert J. Gries
    • G05F3/06H02M3/335H01J29/70
    • H02M3/335G05F3/06
    • 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.
    • 具有相对温度稳定的输出电压的铁电谐振电源包括具有可磁化铁芯和位于其上的绕组的饱和磁性元件。 在绕组中通过交流输入电压的高频源产生磁化电流,以在可磁化铁芯中产生交流磁通,连接绕组以产生交流极性输出电压。 电容器产生循环电流,该循环电流在与绕组相关联的芯部分中产生磁通量,这有助于使磁芯部分磁饱和,从而通过铁共振作用来调节交流极性输出电压。 为了温度稳定输出电压,磁性元件的磁饱和芯部由铁氧体或取代的锂铁氧体构成的铁尖晶石形成。 含有铁磁体的锂阳离子具有理想的磁性能,其饱和磁通密度随温度变化相对较小,并且在适当制造时具有低矫顽力,导致在饱和元素中环境温度以上的相对较小的温度升高。 当使用铁共振电源产生电视接收机的显像管的阳极电压时,可以调节交流极性输出电压,并对其进行整流,以提供相对温度稳定的稳压DC稳压电压。
    • 6. 发明授权
    • High frequency ferroresonant transformer
    • 高频铁磁谐振变压器
    • US4262245A
    • 1981-04-14
    • US007814
    • 1979-01-30
    • Frank S. Wendt
    • Frank S. Wendt
    • G05F3/06
    • G05F3/06
    • A ferroresonant transformer includes a drive winding wound around a thin strip of magnetic material and coupled to a high frequency voltage source. The drive winding is resonated with a capacitance for saturating the core portion of the strip under the drive winding. A load winding, separated from the drive winding sufficiently to provide substantial magnetic decoupling, via air, for example, is resonated with a capacitance to saturate the core portion of the strip under the load winding for providing a regulated output voltage across the load winding.
    • 铁磁共振变压器包括缠绕在薄的磁性材料条上并连接到高频电压源的驱动绕组。 驱动绕组与用于使驱动绕组下的条的芯部分饱和的电容谐振。 通过空气充分地与驱动绕组分离以充分提供实质的磁解耦的负载绕组与电容共振,以使负载绕组下的带的芯部饱和以在负载绕组两端提供稳定的输出电压。