Sanken Technical Report
Sanken Technical Report 是三垦电气集团为了推动能源节约型社会发展所研发的最新技术与产品介绍的技术论文。
该报告内容为电子资料，仅供在线阅览，无印刷品销售。
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Sanken Technical Report 中披露的相关技术不仅限于产品中已采用的现有技术。该报告中提及的产品有停止销售的可能。
2024年11月期号(vol.56)
| No. | Paper Title | Author |
|---|---|---|
| - | Sanken Technical Report vol. 56 Comprehensive Edition | |
| 1 | Development of the Motor Driver IC SIM1 Series | Kawashima Ryota Yamakawa Yuhei |
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The SIM689xM Series offers a wide range of current ratings and is used in inverter-driven white goods. It is assumed that white goods in general will shift to inverters worldwide to promote energy conservation. The market demands a more stable supply and improved quality from this versatile series. The new SIM1 Series meets these market requirements by adopting the next-generation MIC process to shorten lead time, adding H side OCP (overcurrent protection) to prevent secondary breakdowns, and adding an ESD protection element between LS (low-side power IGBT emitter) and COM (common) to avoid electrostatic breakdown risks during set assembly. In addition, the loss characteristics of some ratings of IGBT products have been optimized and reduced to meet the driving conditions of market applications, thereby broadening the range of applications in which they can be used. |
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| 2 | Development of BlueFRD1 for Low-noise FRD | Yuya Kambayashi |
| In today's power device market, where efficient power utilization is required, energy loss reduction by fast recovery diodes (FRDs), which are used in a wide range of applications, is essential. Low noise is also important for general-purpose applications. We have developed BlueFRD1, a new platform FRD with low noise and excellent VF switching-off characteristics due to its new structure. | ||
| 3 | Development of Novel LDMOS with ESD Robustness for Start-up Circuits | Naoto Fujita |
| A new LDMOS (Lateral Double-diffused MOSFET) with high ESD tolerance for startup circuits of high voltage power supply ICs has been developed by integrating the ESD protection device function into itself, while minimizing the increase in chip area. Since this LDMOS is connected to the startup pin, which is a product pin, it enhances the ESD robustness of the product and contributes significantly to the realization of safer and more reliable high-voltage power supply IC products. In this paper, we report on the features and advantages of two new structures (dual zone and ring zone) of high-function LDMOS for startup circuits that we have developed. | ||
| 4 | Development of Special LEDs Using Phosphors Emitting Near-infrared Light | Yousuke Umetsu |
| Near-infrared light has been considered unnecessary in lighting and displays for it's difficulty of invisibility in human eyes. However, it is important in the fields of plant growth and spectroscopic analysis, and is considered to be applicated in such fields as LEDs. This paper covers our development of various LEDs using phosphors that emit near-infrared light. | ||
| 5 | Development of Intelligent Power Device SIP1 Series | Hiroaki Kawaguchi |
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Automobiles are undergoing a period of major change, including electrification, automated driving, and connectedness, and with these changes, the E/E architecture of automobiles is undergoing a rapid shift from a functionally distributed architecture to domain-type and zone-type architectures. In the zoned E/E architecture, it is expected that the conventional power distribution system using mechanical relays and fuses will be replaced by a power distribution system using semiconductors such as IPDs. We report on the development of the next-generation automotive IPD "SIP1 Series," which incorporates the functions required for next-generation zoned power distribution systems. In the next-generation zoned power distribution system, the number of IPD channels in each body domain controller unit will increase, leading to an increase in the pin resources of the control MCU and an increase in the computing resources required to protect and monitor each IPD. That will in turn increase the work required for development, and increase the BOM cost due to the higher functionality of MCUs. To solve these problems, the following functions have been added: (1) Built-in hardware wiring harness smoke emission protection function as a fuse substitute function (2) IPD status monitoring via SPI communication and various function settings and holding functions (3) Realization of on-resistance series lineup by changing MOS chip size |
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| 6 | Development of Highly Efficient Controller of Synchronous Rectification for High-voltage Full-bridge LLC Power Supply | Kim Jungyul Koichi Ito Kang Hanju |
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In the recent development of LLC power supplies for large TVs and the high-voltage battery chargers of EVs, there has been demand for smaller transformers and the elimination, or at least the size and weight reduction, of heat sinks for power devices, to make the power supplies slimmer. As a solution to this requirement, the secondary side of the power supply is configured as a full bridge to achieve high output voltage and low current. Additionally, synchronous rectification has been used in order to further reduce the temperatures of power devices, and a new synchronous rectification controller IC has been developed for efficient switching control. In this paper, we report on the proprietary high-efficiency system that we have established. |
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| 7 | Development of a Design Support Tool for Switching Power Supplies | Yuji Fukaishi |
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The design calculation of switching power supplies requires knowledge of the IC used, transformer design, circuit design, and so on, and facilitating the design of power supplies is expected to have the effect of expanding opportunities for the adoption of such power supply ICs. To increase such opportunities, we have developed “Sanken STR Pro”, a design support tool for power supply design using our ICs. Flyback converter power supply ICs, which are sold in large numbers, were selected as the target products for the tool, which is capable of automatic calculation, including peripheral circuits. |
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| 8 | Development of the AI-fact Image Inspection System | Soshi Oketani |
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Dramatic advances in digital technology have made it pervasive in our daily lives today, and the digital literacy of each and every one of us has improved significantly. As a result, high levels of convenience are expected from the services companies provide, and they must create new value in order to meet the discerning level of demand. In addition, today, labor shortages are becoming the norm due to the declining birthrate and aging population, and we are moving from "an era in which a company chooses its employees" of long ago to "an era in
which people choose their companies." In order to cope with the drastic changes in the business environment, we are also working on the imaging (automation of functional inspection) to make our production plants into smart factories, as one of our measures to promote DX (Digital Transformation). This report describes our development of an in-house image inspection system called "AI-fact" to meet these requirements. |
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| 9 | Development of Equipment Manipulation System for Smart Factory Promotion | Hiroyuki Tanaka |
| One of the most important items in our efforts to promote DX (Digital Transformation) in order to maintain, acquire, and strengthen corporate competitiveness in the rapidly-changing business environment of recent years has been the shift to smart factories in production factories. In order to realize automatic flow in smart factory promotion, it is essential to collect equipment parameter data, operating data, quality data, etc., automatically post them to a check sheet, and then determine whether the equipment can be operated, based on the results of the check sheet. However, for equipment that does not support IoT data collection and for some data types, these data cannot be collected due to equipment specifications. This report paper describes the construction of a production system infrastructure capable of automatic flow as an original system that can handle these requirements. | ||