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公开(公告)号：US20190267907A1
公开(公告)日：2019-08-29
申请号：US16407905
申请日：2019-05-09
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
Abstract: Systems and method for optimizing the efficiency of operation of electronic circuits, configured structured according to a true soft-switching phase-shifted full-bridge topology (where all the primary switching elements turn on at zero voltage and the secondary switching elements turn off at zero current with no ringing and no spikes across the secondary switching elements) with the use of unique current-injection approaches. An additional advantage of the embodiments of this invention is that the true soft switching feature applies regardless of the leakage inductance in the transformer.
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公开(公告)号：US20190115845A1
公开(公告)日：2019-04-18
申请号：US16158202
申请日：2018-10-11
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
Abstract: Electronic circuitry and method of operating the same to shape and reduce the circulating current through the active clamp in a flyback converter and to harvest most of the leakage inductance energy to provide the bias power. Methodologies for minimizing the circulating energy in the clamp circuit in order to improve efficiency of operation of the same. A method for using a portion of the leakage inductance energy in order to create zero voltage switching conditions at the main primary switch.
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公开(公告)号：US20130314200A1
公开(公告)日：2013-11-28
申请号：US13887350
申请日：2013-05-05
Applicant: Ionel Jitaru , Andrei Ion Radulescu , Marco Antonio Davila , Andrei Savu
Inventor： Ionel Jitaru , Andrei Ion Radulescu , Marco Antonio Davila , Andrei Savu
IPC: H01F38/14
Abstract: The magnetic component structures of this invention provides an improved magnetic core and winding arrangement which increases the inductive coupling between the primary and the secondary part compared to a similar single cell structure.A new and innovating wireless power transfer magnetic structure is provided that increases the efficiency of the wireless power transfer by means of increased inductive coupling. Another advantage of these structures is low susceptibility to misalignment errors. The invention comprises two or more identically structural units named cells. The magnetic structure is made of magnetically permeable material and consists of two identical parts, the primary side and the secondary side, that are separated by a large air gap or any other electrically or magnetically nonconductive material. The two identical parts compose the wireless transformer. The transformer includes also copper wire winded around specific areas of the magnetic structure. The versions of the invention presented increase the inductive coupling of the wireless transformer. As a result, the wireless power is transferred more efficient.
Abstract translation: 本发明的磁性部件结构提供了改进的磁芯和绕组装置，其增加了与类似的单电池结构相比的初级和次级部件之间的电感耦合。 提供了一种新的和创新的无线功率传输磁结构，通过增加电感耦合来提高无线功率传输的效率。 这些结构的另一个优点是对错位误差的敏感性低。 本发明包括称为细胞的两个或多个相同结构单元。 磁性结构由导磁材料制成，由两个相同的部分组成，初级侧和次级侧由大气隙或任何其它电磁或非磁性材料分开。 两个相同的部分组成无线变压器。 变压器还包括缠绕在磁性结构的特定区域的铜线。 所提出的本发明的版本增加了无线变压器的电感耦合。 因此，无线电力的传输效率更高。
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公开(公告)号：US20120119714A1
公开(公告)日：2012-05-17
申请号：US13199477
申请日：2011-08-31
Applicant: Ionel Jitaru , Bogdan Tudor Bucheru , Marco Davila
Inventor： Ionel Jitaru , Bogdan Tudor Bucheru , Marco Davila
IPC: G05F1/10
Abstract: A load communication device and method is provided, that identifies and transmits to a PSU the load requirement to operate a load device that is powered by the PSU, by analyzing the characteristics of current applied to the load device by a given input voltage generated by the PSU. The load communication device is configured to transmit between the PSU and the load device solely over the 2 wire cable that extends between the PSU and the load device.
Abstract translation: 提供一种负载通信装置和方法，其通过分析由所述负载装置产生的给定输入电压来分析施加到所述负载装置的电流的特性，识别并向所述PSU发送用于操作由所述PSU供电的负载装置的负载要求 PSU。 负载通信设备被配置为仅通过在PSU和负载设备之间延伸的2线电缆在PSU和负载设备之间进行传输。
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公开(公告)号：US20050270001A1
公开(公告)日：2005-12-08
申请号：US10511117
申请日：2003-04-11
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
CPC classification number: H02M3/3385 , H02M3/33584
Abstract: DC-DC converters such as flyback converters achieve self-regulation by communication information between primary and secondary circuits through the power transformer. Operating in accordance with a generalized concept or algorithm, the converter can be bi-directional and self-regulating. Control of the turn OFF times of semiconductor switches in first and second circuits coupled to first and second windings of the power transformer determines whether power flow is in one direction through the converter or the other direction. Turn ON timing of each semiconductor switch is when there is a reverse current through the switch and voltage across the switch is at or near zero. Turn OFF of a switch can be controlled from one or more operating parameters of the converter such as output voltage, in which case the converter's self-regulation is affected through duty cycle variation with variations in output voltage.
Abstract translation: 诸如反激式转换器的DC-DC转换器通过电力变压器通过主电路和次级电路之间的通信信息来实现自调节。 转换器可以根据广义概念或算法进行操作，可以是双向的和自调节的。 耦合到电力变压器的第一和第二绕组的第一和第二电路中的半导体开关的关断时间的控制确定功率流是通过转换器还是在另一个方向上在一个方向上。 每个半导体开关的导通定时是通过开关有反向电流时，开关两端的电压处于或接近零。 可以通过转换器的一个或多个操作参数（如输出电压）来控制开关的关闭，在这种情况下，转换器的自调节会随着输出电压变化的占空比变化而受到影响。
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Patent Agency Ranking
公开(公告)号：US06469486B1
公开(公告)日：2002-10-22
申请号：US09542068
申请日：2000-04-03
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
IPC: H01F2742
CPC classification number: H05K1/165 , H01F27/06 , H05K1/0203 , H05K1/0206 , H05K1/05 , H05K3/0061 , H05K7/209 , H05K2201/066 , H05K2201/086 , H05K2201/09054 , H05K2201/09063 , H05K2201/09572 , H05K2201/09745 , H05K2201/10166 , Y10T29/49165
Abstract: A transformer group in which a multitude of transformers are used to supply energy to a single load. The transformers are connected in series; in order to assist in providing a “flux equalizing” affect, the invention includes a flux equalizer circuit. The flux equalizer circuit provides a series of flux windings. Each flux winding is associated with a single transformer. The windings are arranged in parallel. In this manner, a balancing of the output of the transformers is obtained; the power output from each transformer is “sensed” by its associated flux winding which is “shared” with the other transformers via their own associated flux winding. Power is process then through the secondary windings, rectifiers, and output filters to a common load.
Abstract translation: 一个变压器组，其中使用多个变压器向单个负载提供能量。 变压器串联连接; 为了帮助提供“通量均衡”的影响，本发明包括一个通量均衡器电路。 通量均衡器电路提供一系列磁通绕组。 每个磁通绕组与单个变压器相关联。 绕组平行布置。 以这种方式，获得变压器的输出的平衡; 来自每个变压器的功率输出由其相关联的磁通绕组“感测”，其通过其自身的相关磁通绕组与其它变压器“共享”。 电源通过次级绕组，整流器和输出滤波器到达共同的负载。
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公开(公告)号：US06400249B1
公开(公告)日：2002-06-04
申请号：US09740315
申请日：2000-12-18
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
IPC: H01F2724
CPC classification number: H01F30/10
Abstract: A transformer providing low output voltage. A transformer core has two outer leg portions and a center portion. A primary winding has a first portion looped around one of the legs so that a current passed through the first winding will produce a magnetic flux in that leg that circulates in either the right hand or left hand sense. A second portion of the input signal winding is looped around the other leg in the opposite sense. This provides for a magnetic flux circulating through the two outer leg portions in the same sense, and provides that the magnetic flux circulating through the center portion is zero. The secondary winding is preferably provided as a fractional loop around one of the outer legs.
Abstract translation: 提供低输出电压的变压器。 变压器铁芯具有两个外脚部分和一个中心部分。 初级绕组具有环绕其中一条腿的第一部分，使得通过第一绕组的电流将在该腿中产生在右手或左手感中循环的磁通量。 输入信号绕组的第二部分以相反的意义围绕另一条支路环绕。 这提供了在相同意义上循环通过两个外腿部分的磁通量，并且提供了通过中心部分循环的磁通量为零。 次级绕组优选地以围绕一个外腿的分数回路提供。
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公开(公告)号：US20170271993A1
公开(公告)日：2017-09-21
申请号：US15463856
申请日：2017-03-20
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
CPC classification number: H02M3/33576 , H02M1/4225 , H02M2001/007 , H02M2001/009 , Y02B70/126 , Y02P80/112
Abstract: In this invention we introduce the concept of a fundamental switching cell with complimentary switchers s and a controlled dead time which is one of the embodiments of this invention. This fundamental switching cell can be used in isolated DC-DC Converter applications and also used for totem pole bridgeless power factor correction applications. One of the main embodiments of this invention describes a circuit wherein such a fundamental switching cell is used to transfer the power across a transformer towards secondary while providing power factor correction for the input line current while extracting the energy from the line and steering the low frequency ripple of the input current towards the bulk capacitor and regulating the voltage in the secondary of the transformer.
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9.发明申请公开(公告)号：US20170093291A1
公开(公告)日：2017-03-30
申请号：US15202455
申请日：2016-07-05
Applicant: Ionel Jitaru
Inventor： Ionel Jitaru
CPC classification number: H02M3/33507 , H02M1/14 , H02M1/15 , H02M1/42 , H02M1/4258 , H02M1/44 , H02M3/1588 , H02M7/06 , H02M2001/007 , Y02B70/126 , Y02B70/1466
Abstract: This patent applications describes several methodologies of decreasing the size of the input bulk capacitor, of increasing the power factor and reducing the RMS current through the input bulk capacitor. Some of these methodologies do not require any hardware change from the conventional AC-DC adapters and all is accomplished just through the modulation of the input current drawn by the isolated DC-DC converter. Others methodologies described in this patent application do require small changes in the hardware and that will amplify the effect of current modulation in reduction of the input bulk capacitor and will significantly improve the power factor.
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公开(公告)号：US20130314197A1
公开(公告)日：2013-11-28
申请号：US13887346
申请日：2013-05-05
Applicant: Ionel Jitaru , Marco Antonio Davila , Andrei Savu , Andrei Ion Radulescu
Inventor： Ionel Jitaru , Marco Antonio Davila , Andrei Savu , Andrei Ion Radulescu
IPC: H01F27/34
CPC classification number: H01F27/346 , H01F27/24 , H01F38/14
Abstract: Several new and useful features for a magnetic structure are provided. One feature is that the magnetic structures are configured to help minimize the winding's AC losses, improving the system's efficiency. Another feature is that the combination of different magnetic hats creates a shaping path for the magnetic field. Still another feature is that a magnetic hat concept can be applied to a variety of magnetic core shapes.
Abstract translation: 提供了一些磁性结构的新的和有用的特征。 一个特征是磁结构被配置为帮助最小化绕组的AC损耗，提高系统的效率。 另一个特征是不同磁性帽子的组合产生磁场的成形路径。 另一个特征是可以将磁帽理念应用于各种磁芯形状。
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