快恢复二极管铜迁移失效机理及应用可靠性研究

变频空调控制器柜机主板在生产过程出现大量IPM炸裂失效,IPM炸失效同步自举二极管失效,位置不集中,对主板进行分析,确定是IPM自举电路升压二极管异常导致IPM炸裂失效,经过对大量失效二极管及全检异常二极管分析,分析研究结果表明:二极管因为晶圆设计工艺结构缺陷、焊接工艺问题,导致晶圆焊接时产生高温铜迁移,抗机械应力水平下降,在实际应用中又因为器件引脚跨距设计不合理导致器件受机械应力影响加深失效程度,最终出现过电击穿失效,经大量的方案分析验证最终确定可行的方案,有效解决二极管铜迁移失效.从器件本身提高器件的应用可靠性.     

功率半导体器件的著名品牌——三菱电机电力电子器件

世界著名电力电子器件生产供应商三菱电机株式会社(MITSUBISHI ELECTRIC)向全世界供应各种功率器件,包括单管器件和模块(IGBT、MOSFET、晶体管、二极管、可控硅),近年来又率先推出智能功率模块IPM。 IGBT模块和IPM模块,是三菱电机目前着力向中国内地推广的两种优秀器件,并被广泛应     

新品

接口器件新型IPM和IGBT接口用光耦合器ACPL-4800 Avago Technologies(安华高科技) 公司日前推出的新型光耦合器ACPL- 4800,十分适合驱动重工业设备马达控制中的智能功率模块(IPM)和绝缘栅双极晶体管(IGBT)。Avago的ACPL- 4800光耦合器能满足最严格的IPM性     

高性能马达控制用的新型智能功率模块

本文介绍三菱公司为中低功率变速控制应用而研制的新型智能功率模块(IPM)系列：双列直插封装IPM(DIP—IPM)和单列直插封装IPM(SIP—IPM)。与以前型式的DIP—IPM相比，这种采用第五代IGBT(绝缘栅双极晶体管)的新型DIP—IPM不仅在静态性能和动态性能两方面都得到相当大的改善，而且功率能力扩展到了3．7kW。这一成果得益于亚微米功率芯片设计、最佳模块设计和封装工艺中的最新技术。这种新器件为用户的逆变器系统提供了一种低成本高性能的解决方案。     

IPM智能功率模块的设计与分析

引言 IPM智能功率模块是先进的混合集成功率器件,由高速、低功耗的IGBT芯片和优化的门极驱动以及保护电路构成.由于采用了能连续监测功率器件电流的、有电流传感功能的IGBT芯片,从而可实现高效的过流保护和短路保护.由于IPM智能功率模块集成了过热和欠压锁定保护电路,因而系统的可靠性得到了进一步提高.     

IR扩充iMOTION集成功率模块产品线积极推动节能家电应用

全球电源管理技术领袖国际整流器公司(International Rectifier,简称IR)最新推出一系列600V、16A和20A的集成功率模块(IPM),进一步扩大了模拟功率平台方案的阵营,使之成为IR iMOTION集成设计平台的一部分。新的IPM有助于简化紧凑型、高性能变速运动控制功率平台的设计,应用领域包括空调和商用冷却系统等。这些新型的IPM是专为节能家电中的85V～253V交流变速电机驱动器而设计的,将IR专有的高压集成电路(HVIC)与三相逆变功率平台集成在一起。其中,额定电流16A的器件适合750W～1.2kW的功率平台,20A器件则适合750W～2.2kW的功率…     

基于DSP和CPLD的无刷直流电机控制系统的设计

本文介绍了一种以无刷直流电机为控制对象．以DSP为核心控制器、CPLD为接口器件、以智能功率模块（IPM）为驱动元件的数字伺服系统的设计方法。该设计应用在某相控阵搜索雷达产品上,取得了很好的应用效果。     

基于智能功率模块的变频器

文章介绍一种基于智能化功率模块器件IPM的可再扩展变频器的研制。此种变频器方便用户自行开发 ,可扩展能力强 ,易于与用户系统融于一体。此外 ,介绍了作者在开发过程中遇到的技术难点和积累的一些经验     

全数字舰载搜索雷达舷角驱动系统设计

基于数字信号处理器（DSP）的全数字舰载搜索雷达舷角驱动控制系统由主控制器DSP、大规模可编程逻辑器件、智能功率驱动模块IPM构成。该系统能够在DSP内部完成电机换向,速度环调整,实现了全数字化舷角驱动,提高了伺服的精度和可靠性。     

基于8098单片机的SPWM变频调速系统研究

数字控制的交流调速系统所选用的微处理器、功率器件及产生PWM波的方法是影响交流调速系统性能好坏的直接因素.在介绍了正弦脉宽调制(SPWM)技术的基础上,设计了一种以8098单片机作为控制器,以智能功率模块IPM为开关器件的变频调速系统.通过软件编程,产生正弦脉冲宽度调制波形来控制绝缘栅双极晶体管的导通和关断,从而达到控...     

一种上下文感知编程模型——IPM的实施

提出了一种面向上下文的编程模型IPM(Isotope Programming Model)并介绍了IPM的实施.IPM对已有的面向对象模型进行扩展,引入了新的语言元素,将上下文感知应用的编程对程序员简化,使其只关心程序的逻辑,而不用关心上下文数据的变化.将IPM与现有的面向对象的编程方法进行对比,体现了IPM在上下文感知应用开发中的优越性.     

Advanced simulation model for IPM motor drive with considering phase voltage and stator inductance

This paper proposes an advanced simulation model of driving system for Interior Permanent Magnet (IPM) BrushLess Direct Current (BLDC) motors driven by 120-degree conduction method (two-phase conduction method, TPCM) that is widely used for sensorless control of BLDC motors. BLDC motors can be classified as SPM (Surface mounted Permanent Magnet) and IPM motors. Simulation model of driving system with SPM motors is simple due to the constant stator inductance regardless of the rotor position. Simulation models of SPM motor driving system have been proposed in many researches. On the other hand, simulation models for IPM driving system by graphic-based simulation tool such as Matlab/Simulink have not been proposed. Simulation study about driving system of IPMs with TPCM is complex because stator inductances of IPM vary with the rotor position, as permanent magnets are embedded in the rotor. To develop sensorless scheme or improve control performance, development of control algorithm through simulation study is essential, and the simulation model that accurately reflects the characteristic of IPM is required. Therefore, this paper presents the advanced simulation model of IPM driving system, which takes into account the unique characteristic of IPM due to the position-dependent inductances. The validity of the proposed simulation model is validated by comparison to experimental and simulation results using IPM with TPCM control scheme.     

爱立信IPM功能应用及效果分析

IPM是爱立信RBS6000系列基站的新功能，可以提高载波发射功率，增强基站覆盖。为了验证IPM功能实际增强覆盖效果，对开通IPM的小区进行了数据分析和DT比对测试来了解该功能的特点。     

基于DSP的交流异步电机高精度调速系统设计

针对交流异步电机的特性,设计了一套基于DSP的交流异步电机高精度调速系统。系统应用矢量控制技术作为系统的总体控制方案,以TI公司电机控制专用的高速数字信号处理器（DSP）TMS320F2812为系统的核心处理器,三菱电机公司的PS21246智能功率模块（IPM）为逆变器件,在此基础上运用空间电压矢量脉宽调制技术和模糊PI控制算法,构建了一个基于TMS320F2812 DSP的交流异步电机高精度控制平台。     

单相逆变器智能功率模块应用电路设计

以PM200DSA060型智能功率模块(IPM)为例,介绍IPM的结构,给出IPM的外围驱动电路、保护电路和缓冲电路的设计方案,介绍PM200DSA060在单相逆变器中的应用.     

Novel rotor position extraction based on carrier frequency component method (CFCM) using two reference frames for IPM drives

In this paper a novel interior permanent-magnet (IPM) motor's rotor position extraction method from the carrier-frequency component signal, derived from pulsewidth-modulated (PWM) inverter switching, using two reference frames is presented. This method has been utilized for IPM motor vector control without a mechanical rotor position detector, extracting rotor position angle from the switching carrier-frequency (10 kHz) component current. It is effective for IPM motors, which have magnetic saliency, sinusoidal distributed stator winding, and are supplied by a PWM voltage-source inverter. The performance of two IPM motors' vector control without mechanical rotor position detector utilizing this method has been investigated. Experimental results demonstrating good dynamic and steady-state performance achieved are presented and discussed.     

Image Parameter Design of Noncommensurate Distributed Structures: An Application to Microstrip Low-Pass Filters

The direct application of the image parameter method (IPM) to distributed structures is suggested in order to overcome some limitations of classical design methods for microwave filters. Several advantages are pointed out: 1) Wider degrees of freedom are obtained using noncommensurate structures. 2) The IPM can be applied directly to a microwave structure without any use of lumped prototypes. 3) Possible technological constraints can be easily incorporated in the design procedure. 4) Filters designed according to the IPM can be cascaded together in order to improve their characteristics. An application to the design of a class of microstrip low-pass filters, which have been previously designed on a low-frequency approximation basis, is illustrated in detail. The IPM is shown to provide an effective control of both the passband and stopband, leading to filters with improved characteristics, as demonstrated by the experimental results.     

Development and Implementation of a Novel Fault Diagnostic and Protection Technique for IPM Motor Drives

This paper presents the practical implementation of a novel fault diagnostic and protection scheme for the interior permanent-magnet (IPM) synchronous motors using wavelet packet transform (WPT) and artificial neural network. In the proposed technique, the line currents of different faulted and normal conditions of the IPM motor are preprocessed by the WPT. The second level WPT coefficients of line currents are used as inputs of a three-layer feedforward neural network. The proposed protection technique is successfully simulated and experimentally tested on the line-fed and inverter-fed IPM motors. The Texas Instrument 32-bit floating-point digital signal processor TMS320C31 is used for the real-time implementation of the proposed protection algorithm. The offline and online test results of both line-fed and inverter-fed IPM motors are given. These test results showed satisfactory performances of the proposed diagnostic and protection technique in terms of speed, accuracy, and reliability.     

IPM在电力机车大功率开关电源中的应用研究

智能功率模块IPM在电力电子领域的应用越来越广泛。在此详细描述了IPM的结构和外型,着重阐明了IPM中的自我保护机制,以便于编程实现。同时,结合在研项目“电力机车模块化分布式大功率开关直流稳压电源”的设计与开发,分析了IPM作为大功率高频逆变器应用时的相关注意事项,给出了具体设计的电路图和选型资料。通过实际现场调试,现场保护灵敏度高,运行稳定可靠。