深圳宝博洛科技有限公司

Inductance Calculation of Inductor Integrated Planar Transformer BY Jung-Cheol Kang, and Se-Kyo Chung
Abstract
The design and fabrication of magnetic components is one of the most important issues in realizing high-density switching power converters. An integrated magnetics (IM) technique has been used to reduce the
size and cost of the magnetic components. In this technique, a leakage inductance can be used as a series inductor connected to the transformer for applications using resonant techniques, such as LLC resonant converter and other zero-voltage switching converters. The calculation of the leakage inductance is required to accurately control the value of the inductance in designing an IM device. This paper describes the calculation
of the leakage inductance for the inductor integrated planar transformer used for the high-density LLC resonant converter. The leakage fluxes through the leakage layer is first considered to calculate the biggest part of the
leakage inductance. The windings and insulators are also considered to improve calculation accuracy under the uneven number of windings for the PCB layer. Leakage inductance is calculated using magnetic energy
equation and equivalent magnetic circuit. Experimental results are provided to verify the effectiveness of the proposed calculation method.

Magnetic ring inductor coil handmade, mechanical manufacturing factory site. Feb 23rd 25.

As technology moves towards high frequency, the frequency of current inductors has climbed to the MHz level, which puts more stringent requirements on the materials used. Future research on magnetic materials will focus on how to achieve more precise regulation at the material level to effectively reduce eddy current losses and improve magnetic permeability.

A new revolution in power supply! How do inductors and transformers meet the ultimate challenge of the AI ​​era?
Compared to ordinary servers,

AI servers have achieved deep innovation and optimization in hardware architecture, computing power, storage efficiency, and heat dissipation mechanism.

Their powerful parallel processing capabilities not only demonstrate a technological leap, but also perfectly meet the stringent requirements of AI algorithms in processing massive data and highly complex computing tasks.

With the improvement of server performance and the increase in energy consumption, how will it affect the development of AI server power supply? And what new power supply technology challenges will it bring to inductors and transformers?

The original purpose was very simple, which was to integrate the two inductors L1 and La into Lc to reduce the number of inductors and reduce the volume of inductors.

🧡 After nearly a hundred years of development, it has gradually developed into a complex magnetic integration technology of multiple magnetic components, and its application has become more and more common.

💙 Since 2023, terminal price competition has continued to intensify, and the application of magnetic integration has gradually expanded to the field of power magnetic components, and has become one of the most popular topics in the field of magnetic components this year.
Especially in the automotive industry, with the alternation of the old and new eras, the acceptance of new products and services is also increasing, and the application of magnetic integration technology in the field of new energy vehicles has made a good start.

💚 Some speeches and views of interviewees at the 2024 Magnetic Integration Technology Innovation and Application Seminar, reviewing the current application status, challenges and future development trends of magnetic integration of power magnetic components in the field of new energy vehicles.
01. Which components in new energy vehicles can be magnetically integrated?
Through the industry’s disassembly of Tesla Model 3, it can be found that the 12 major functional modules of new energy vehicles require a total of 17 electronic transformers and 143 inductors, a total of 160 magnetic components.
Of course, each manufacturer has different solutions, and the usage of functional modules and magnetic components is also different. The above data is for reference only.

销售小姐姐在周末，非常忙碌的，客户需要电感器非常紧急的情况下，牺牲周末宝贵时间，敢与突破，及时交付电感器给客户，一个有竞争力的团队，是超预期的满足客户的需求，进而得到自我的提升。我相信市面上是没有如此上进，积极进取的团队的，这就是我们战胜同行的秘密武器。

The sales lady was very busy on weekends. When the customer needed an inductor urgently, she sacrificed her precious weekend time, dared to make breakthroughs, and delivered the inductor to the customer in time.

A competitive team can meet the needs of customers beyond expectations and then improve itself. I believe there is no such motivated and aggressive team in the market. This is our secret weapon to defeat our peers.

随着算力的不断提升，通过各种连接传输的数据量呈指数级增长，数据中心的信息处理需求激增，以支撑大模型、人工智能等技术的快速发展。
💚 在这样的市场发展趋势下，CPU、GPU、FPGA等半导体处理器在制造工艺上不断优化，迅速向小型化发展，数据处理能力显著增强。在这些核心处理器能力不断提升的驱动下，与之相匹配的电源电路也发生了巨大的变化。电源电路中的TLVR
🧡 先进处理器朝着更小的尺寸发展，导致其中使用的电源电压更低，但消耗的电流却大幅增加，先进处理器的功耗不断上升，不少业界厂商预测，功耗将成为先进计算进一步发展的最大制约因素。低电压大电流特性带来的问题之一就是电源电路如何应对快速的负载波动。在电压本来就很小的电路中，在大电流负载波动下维持稳定可靠的电压输出是非常困难的。
💚 为了满足当今先进处理器对于电源电路的需求，TLVR是一种非常常见的电路配置，用于应对低压大电流应用中的快速负载波动，即跨电感进行电源电压调节。其原理是利用耦合电感次级绕组连接一个串联调谐电感来增大耦合电流，从而快速提高瞬态电流响应速度。
💙 在TLVR电路配置中，每一相开关都连接一个带有附加绕组的电感，然后将每相的绕组与补偿电感串联连接，形成环路。 TLVR配置大大提高了电源供应能力，使得这些先进的处理器能够实现更高的瞬态响应性能，同时降低功率损耗，还能降低整体尺寸和系统成本。TLVR用电感在TLVR中，电感的选择非常关键，这极大地影响了电源配置是否能满足当今数据驱动应用的性能要求。TLVR功率电感可以为电路提供关键的调节能力，通过积累和释放能量来维持连续电流，可以为不同电压等级的电源系统提供大电流和高电感。

With the continuous improvement of computing power, the amount of data transmitted through various connections is increasing exponentially, and the demand for information processing in data centers has surged to support the rapid development of technologies such as large models and artificial intelligence.
💚 Under such market development trends, semiconductor processors such as CPUs, GPUs, and FPGAs are constantly optimized in manufacturing processes and rapidly developing towards miniaturization, with significantly enhanced data processing capabilities. Driven by the continuous improvement of the capabilities of these core processors, the power supply circuits that match them have also undergone tremendous changes.TLVR in power supply circuits
🧡 Advanced processors are moving towards smaller sizes, resulting in lower power supply voltages used in them, but the current consumed has increased significantly, and the power consumption of advanced processors has been rising. Many industry manufacturers predict that power consumption will become the biggest constraint on the further development of advanced computing.One of the problems caused by low voltage and high current characteristics is how the power supply circuit responds to rapid load fluctuations. In a circuit where the voltage is already very small, it is very difficult to maintain a stable and reliable voltage output under large current load fluctuations.
💚 In order to meet the needs of today’s advanced processors for power circuits, TLVR is a very common circuit configuration for dealing with rapid load fluctuations in low-voltage and high-current applications, that is, power supply voltage regulation across inductors. The principle is to use the coupled inductor secondary winding to connect a series tuned inductor to increase the coupling current, thereby quickly increasing the transient current response speed.
💙 In the TLVR circuit configuration, each phase switch is connected to an inductor with an additional winding, and then the winding of each phase and the compensation inductor are connected in series to form a loop. The TLVR configuration greatly improves the power supply capability, enabling these advanced processors to achieve higher transient response performance, while reducing power loss, and also reducing overall size and system cost.Inductors for TLVRIn TLVR, the selection of inductors is very critical, which greatly affects whether the power supply configuration can meet the performance requirements of today’s data-driven applications. TLVR power inductors can provide critical regulation capabilities to the circuit, maintain continuous current by accumulating and releasing energy, and can provide high current and high inductance for power supply systems of different voltage levels.

有的时候客户购买我的产品，真的不是因为价格便宜，更不会因为服务周到贴心，不同的客户群体有不同的购买理由和偏好，有的年轻的朋友会被我们的产品差异化包装而购买，甚至不是因为蛋糕的美味而买，却是因为蛋糕上的漂亮可爱的小蜡烛而购买，客户的小小小心思，我们只有通过细节观察才会知道。

Sometimes customers buy my products not because of the low price or the thoughtful and considerate service. Different customer groups have different reasons and preferences for purchase. Some young friends will buy our products because of the differentiated packaging. Some even buy them not because the cakes are delicious, but because of the beautiful and cute candles on the cakes. We can only know the customers’ little thoughts by observing the details.

• My name is Ruby Chen, born and raised in Hunan Province, China.
• I am of Han ethnicity,
• I love electronics and business design and investing, I love making friends and traveling.
• I also love my family and my sweetheart.
• From component manufacturing to consumer electronics design,
• we are doing our best to do this and attract more and more customers
• to us. Products are designed by top engineers and
• have their own patents and global market certification certificates.
• I am an electrical engineering graduate, enjoying my first taste of designing and manufacturing hardware. My first circuit board was a very low-speed microcontroller board, using mostly DIP and through-hole components, like something from the 80s. It is easy to convert a breadboard to a PCB using these packages, but they are large, and the cost per square inch is very high for project boards running in the single digits. To keep costs down, I designed a board using only SMT components, which is more compact (and more complex) than any other board I have made before. I wanted to verify as much as possible that my design would work before making the board, so that I would not waste my limited budget and have to postpone the making of a new board.
• Our company has in-depth cooperation with LG of South Korea, providing SMD OEM services for inductors. Since the cooperation started in December 2018, the compound annual growth rate has exceeded 17%. It has been widely recognized and supported by magnetic component customers.

Los convertidores CC-CC existentes tienen un ciclo de trabajo estrecho

(1), lo que reduce en gran medida la eficiencia de conversión, por lo que se requiere un convertidor CC-CC que pueda lograr una conversión de alta eficiencia sin depender de la diferencia de potencial de entrada/salida. Por esta razón, Murata es un POL delgado.
(2) Desarrollamos este producto para reducir significativamente la dependencia del tamaño del inductor y lograr una alta eficiencia en aplicaciones como reguladores, módulos de transmisión óptica que requieren montaje de alta densidad, potencia central y ASIC/FGPA. , existen restricciones en cuanto al área de montaje y la altura. Tecnología única de bomba de carga
Además del innovador método de circuito de dos etapas que combina

(3) y el circuito convertidor CC-CC existente, se utiliza un método entrelazado de dos fases

(4) para lograr una alta eficiencia del 89%. ). El rango de voltaje de entrada es de 3,0 V a 3,45 V y la corriente de salida se puede entregar a cada dispositivo a 12 A. El voltaje de salida se puede ajustar entre 0,35 V y 0,7 V dependiendo de la resistencia de retroalimentación externa.

After seven ye want quality, products are not a joke, you can wear fake shoes, Using fake products is worse than taking fake medicine