Automotive-Grade Capacitors · Domestic Substitution | Shanghai Yongming's Full-Scenario Capacitor Solutions for Electrified Transportation Debut at the 29th Academic Annual Meeting of the China Power

Shanghai Yongming Electronics will participate in the 29th Annual Academic Conference of the China Power Supply Society (CPSS) from November 6th to 7th, located at Booth D21, Hall B1, of the Suzhou International Expo Center. The company will showcase a comprehensive range of capacitor solutions tailored for five key sectors: new energy power generation and energy storage, electrified transportation, AI servers, robotics and motor drives, and power device components.

This overview focuses on electrified transportation—covering electric drive/control systems, charging systems, and Battery Management Systems (BMS). For detailed capacitor selection guidance across other application areas, we invite you to visit us at Booth D21, Hall B1, to discuss your specific requirements.

PART 01: Yongming Capacitor Solutions for Electrified Transportation

As new energy vehicles evolve toward high-voltage architectures and higher power densities, the core "three-electric" systems (battery, motor, and control) face demanding operating conditions. Yongming provides highly reliable, integrated solutions—combining aluminum electrolytic capacitors and film capacitors—to meet these rigorous challenges.

1) Electric Drive/Control Systems: High-Frequency Filtering and Wide-Temperature Stability

Electric drive and control systems are subject to intense fluctuations during vehicle start-stop, acceleration, and energy regeneration. These conditions impose stringent requirements on capacitors, including high ripple current tolerance, robust vibration resistance, and stable DC-link support. Yongming’s VHT series hybrid capacitors and MDR series film capacitors offer an ideal, combined solution designed specifically to address these demanding requirements.

2) Charging System: High-Density Support and Power-Loss Protection for High-Voltage Platforms

In high-voltage platform architectures, On-Board Chargers (OBCs), DC-DC converters, and DC charging piles must withstand high voltage stress and large ripple currents within constrained spaces, while their control units must be capable of handling sudden power-loss events. Yongming provides a comprehensive capacitor matrix for these applications: the LKC series (e.g., 400V 47μF, 105°C/10,000H) offers long-life support for high-voltage filtering; the CW3H series (e.g., 450V 330μF) snap-in capacitors provide robust high-current DC-bus support; the MDP series (450–1400VDC) film capacitors deliver high-reliability DC support, featuring a 100,000-hour lifespan and low-ESR characteristics at high frequencies. Additionally, the VHT series (125°C) and V3M series surface-mount capacitors facilitate high-density component layouts, while the SDH series (2.7V 2.0F) supercapacitors provide power-loss protection and short-term backup power for control boards.

3) BMS (Battery Management System): Balancing Management and Transient Support

As the "brain" of a new energy vehicle's battery system, the BMS is tasked with critical responsibilities such as voltage monitoring and balancing management. This places stringent requirements on the capacitance density and wide-temperature stability of the capacitors used. Yongming’s hybrid solution—combining solid-polymer (hybrid) and liquid-electrolyte capacitors—is an ideal choice specifically engineered to meet these demands.

PART 02: Precision-Driven Solutions for Every Stage of Electrified Transport

From high-frequency filtering and vibration-resistant support for electric drive systems, to high-voltage/high-current handling and power-loss protection for charging systems, and precise cell balancing within Battery Management Systems (BMS)—every energy conversion process in electrified transport relies on the foundational support of highly reliable power components. Yongming offers a comprehensive capacitor matrix—featuring the VHT/MDR series (hybrid and film capacitors), LKC/CW3H/MDP series (high-voltage and film-based support capacitors), V3M series (miniaturized SMD capacitors), and SDH series (supercapacitors)—that spans the entire ecosystem: from electric drive and control systems to charging infrastructure and BMS.

For detailed selection guidance tailored to specific power ratings and structural designs, as well as empirical test data, please visit Booth D21 in Hall B1 to speak directly with our engineers.

Join us at the Suzhou International Expo Center, Hall B1, Booth D21, from November 6th to 7th—we look forward to seeing you there!