​GaN技术如何重塑人形机器人动力系统架构

Core Insights - The global humanoid robot market is projected to see significant growth, with shipments expected to reach approximately 18,000 units in 2025 (up 508% year-on-year) and 51,000 units in 2026 (an annual growth rate of about 183.33%) [1] - By 2029, the global humanoid robot market size is forecasted to reach $20.6 billion, with China accounting for 75 billion yuan, and a compound annual growth rate (CAGR) exceeding 93% from 2025 to 2029 [1] - Long-term projections suggest that by 2050, the global market could reach $7.5 to $7.6 trillion, with China contributing $1 trillion and a total of over 1 billion units in operation, positioning it as the largest market globally [1] Group 1: Power Architecture of Humanoid Robots - The core modules of humanoid robot power architecture include battery charging and storage, battery management, power protection, power conversion, joint drive, and intelligent energy replenishment, which are essential for stable movement, precise control, and long-lasting endurance [4] - The power specifications are based on a safety extra-low voltage (SELV) system, with a mainstream 48V bus gradually transitioning towards 72V applications, emphasizing safety, low energy consumption, lightweight design, and high power density [6] - The working process involves a 48V-72V battery pack as the main power input, managed by a Battery Management System (BMS) for monitoring and safety, with multiple DC/DC converters supplying matched voltage to various components [6] Group 2: Challenges in Miniaturization and Heat Management - The humanoid robot industry faces a critical technological paradox between the pursuit of extreme miniaturization of joints and the heat dissipation requirements during high power density operation [7] - The strict size limitations for humanoid robot joints require diameters to be kept under 100mm, with finer joints needing to be below 50mm, complicating the integration of independent cooling components [11] - The challenges of heat management arise from the compact design, which leads to rapid heat accumulation and potential overheating, necessitating systemic improvements in structure, materials, drive, and thermal management [12] Group 3: Advantages of GaN Technology - Gallium Nitride (GaN) HEMT devices outperform traditional silicon-based MOSFETs in key performance metrics, providing significant advantages for humanoid robots [14] - GaN devices can achieve switching frequencies of 1-10 MHz, significantly higher than the typical 100 kHz of silicon solutions, allowing for a reduction in passive component size by over 70% and improved motion control precision [14] - The efficiency and thermal performance of GaN devices enable peak efficiencies exceeding 99% in 48V-72V systems, reducing losses by 60%-80% compared to traditional solutions, thus enhancing endurance and continuous output capabilities [14] Group 4: GaN Solutions for Humanoid Robots - The company is developing a comprehensive domestic robot power system chip matrix that covers four core categories: joint drive, joint control, BMS protection, and charging management, utilizing GaN integrated circuits and AI simulation as the technological foundation [15] - The BMS power chip CT-10B30 enables AI monitoring throughout the battery lifecycle, ensuring stable operation and precise management of bus voltage and current [20] - The joint control chip CT-2001 integrates low-latency control algorithms, achieving a delay as low as 0.2ns, which is ideal for high-density motor layouts [21]