16 POWER CAPACITORS www.analog.com Issue 2 2025 Power Electronics Europe www.power-mag.com Table 1. The Vp-p of Load Transient Response Comparison Between Non-AVP, AVP, and AVP Using Only Output Ceramic Capacitors Figure 6. Load transient waveform of the circuit with AVP, 104mVp-p output voltage transient. COUT1 = 7 100 F ceramic capacitors. Non-AVP 5 100?F Ceramic Capacitors + 2 470 F POSCAPs AVP 5 100 F Ceramic Capacitors + 2 470 F POSCAPs AVP 7 100 F Ceramic Capacitors Only Load Transient Response, Vp-p (mV) 104 95 136 Table 1 shows the above measured Vp-p of the load transient response of the nonAVP (benchmark), AVP, and AVP using only output ceramic capacitors for comparison. Conclusion Implementing the AVP series compensation circuit on the LTM4650-2 Module regulator achieved an improved transient response performance and lower load-power consumption at high load. Output capacitance of less than 50% is required. Hence, it can replace POSCAPs with ceramic capacitors, reducing cost and minimising circuit board space. This AVP circuit is also applicable for many other ?Module regulators that have an external compensation pin with external RC compensation network (for example, LTM4630-1, LTM4626, LTM4636, LTM8055-1, etc.). Analog Devices: www.analog.com Reference 1Robert Sheehan. “Active Voltage Positioning Reduces Output Capacitors.” Linear Technology, 1999. www.power-mag.com The PCIM Expo & Conference 2025 again proves to be a catalyst for innovation and progress in power electronics From 6 – 8 May 2025, the PCIM Expo & Conference once again delighted international industry visitors with solutions, presentations, and much more from the world of power electronics. As the central industry platform for pioneering product premieres, innovations, and the latest research findings, the leading expo and conference provided plenty of inspiration for the evolution toward greater efficiency and sustainability in the sector. For the first time extending over six exhibition halls and 41,500 m? of exhibition space, the event brought together big industry names to drive forward technological developments and unleash the full potential of power electronics. With 685 exhibitors and around 16,500 visitors, this year’s exhibition was once more a resounding success. Underscoring the event’s global relevance was the strong international presence of exhibiting companies, 62% of which came from outside of Germany – a new record. Besides promoting international dialog, this gave attendees a comprehensive overview of the global market. 433 high-calibre presentations on the latest research topics gave the 818 attendees from 26 countries the chance to delve deeper into the world of power electronics and discover and discuss the latest research findings and technological advances. Varied supporting program offering concentrated expertise All three days of the exhibition were accompanied by a highly focused, specialized program of presentations covering current topics in the industry, such as decarbonization. Across the three stages of the PCIM Expo, attendees were able to discover more about solutions for electromobility and energy storage, product innovations, and research progress, and speak directly to the experts. The varied presentations also demonstrated the broad applicability of power electronics across numerous industries, including industrial electronics, automation, and drive systems. The strong response was reflected in the positive atmosphere: “The company has been exhibiting here for 20 years for the simple reason that we think that PCIM is one of the most important exhibitions for power electronics in the world. We’ve checked fairs in other countries, but we’ve not found any equivalent to the PCIM. This Expo has a deep, uncompromising focus on power electronics. And even after 20 years, we continue to meet new contacts within the community whether customers, leads, suppliers or engineers – they’re all here over three inspiring days – year after year!” as Karim Zaibat, Business Manager, Cefem Industries, stated. This sentiment was echoed by Thomas Neyer, Senior Vice President, Infineon Technologies: “The PCIM is much more than a conference - it offers space for dialog, international partnerships and innovative forms of collaboration across company boundaries.” Focus on industry trends: Current challenges and practical solutions This year’s PCIM Expo & Conference once again addressed key topics that are impacting the entire power electronics industry, such as improving energy efficiency, system integration, and the increased use of new semiconductor materials. The event offered both industrial and scientific perspectives and demonstrated how research and practice work hand in hand to translate current challenges into innovative solutions. Pietro Scalia, Sr. Director, Renesas Electronics added: “Our time at the PCIM is full of highlights – expected and unexpected ones! For us at Renesas, it is three days of valuable encounters starting at breakfast, all through the day and going on well into the evening. ¶ PCIM Review
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