With the rapid development of the embodied intelligence industry, quadruped robots are being increasingly deployed in specialized applications such as power grid inspection, fire and rescue, security patrols, and industrial inspection. Compared with traditional industrial equipment, these robots must maintain stable and reliable power output while operating on complex terrain, performing high-frequency movements, and running continuously for extended periods. This places higher demands on the power devices used in their joint drive systems.
High-performance MOSFETs must not only offer low conduction losses and high efficiency, but also demonstrate excellent consistency, reliability, and environmental adaptability, providing the foundation for the robot’s long-term stable operation.
As a leading domestic provider of IC products and system solutions, Fortune Techgroup leverages its extensive global manufacturer resources and system-level application capabilities to provide core joint-drive components and an integrated supporting solution for Suzhou Zhishen Technology’s quadruped robot products. By introducing Jiejie Microelectronics’ automotive-grade SGT MOSFETs and integrating products including analog signal-chain, protection, and passive components, Fortune Techgroup helps customers build high-performance, highly reliable robotic electronic systems.
Application Challenges
Quadruped robots typically feature 12 motion joints, with each joint requiring precise position, speed, and torque control. During walking, running, jumping, and movement across complex terrain, the joint drive system must frequently start and stop while withstanding significant transient current surges. This places higher requirements on MOSFET conduction losses, thermal performance, reliability, and long-term stability.
At the same time, as the robotics industry moves toward large-scale mass production, customers are seeking more stable and reliable domestic core components to further improve product consistency and supply chain security, laying a solid foundation for continuous product iteration and future high-volume deliveries.
Fortune Techgroup’s Solution
In response to customer requirements, Fortune Techgroup introduced Jiejie Microelectronics’ automotive-grade SGT MOSFET JMSH1003AGQ into the joint drive system of Zhishen Technology’s quadruped robots.
The device features a 100 V voltage rating, a continuous current capability of 170 A, and an RDS(ON) as low as 2.8 mΩ. While meeting the requirements of high-current drive applications, it effectively reduces conduction losses and system heat generation, improves drive efficiency, and provides the robot joints with more stable and efficient power output.
In this project, Fortune Techgroup assisted the customer in upgrading from industrial-grade MOSFETs to automotive-grade MOSFETs. Compared with industrial-grade products, automotive-grade devices offer superior consistency, reliability, and environmental adaptability. They can meet the stability requirements of robotic power systems under high loads, extended continuous operation, and complex environmental conditions, further enhancing overall system reliability.
Each quadruped robot is equipped with 12 motion joints, with 6 MOSFETs used in the drive circuit of each joint. This results in a total of 72 MOSFETs per robot, fully demonstrating the critical role of high-performance power devices in robotic power systems.
In addition to the joint drive solution, Fortune Techgroup also leverages its multi-brand distribution capabilities to integrate resources from leading manufacturers, including Jiejie Microelectronics’ power and protection devices, Rushan Technology’s analog signal-chain products, and AVX high-reliability capacitors. This enables Fortune Techgroup to provide customers with one-stop component support covering power drive, power protection, analog signal chains, and passive components, helping customers optimize their supply chain systems, improve R&D efficiency, and accelerate the mass-production process.
Solution Highlights
1. Upgrade to Domestic Automotive-Grade MOSFETs
Fortune Techgroup assisted the customer in upgrading from industrial-grade MOSFETs to Jiejie Microelectronics’ automotive-grade SGT MOSFETs, further enhancing the reliability and stability of the robotic power system under demanding operating conditions.
2. High-Density Joint Drive Application
Each robot is equipped with 12 motion joints, with 6 MOSFETs used for drive control in each joint. A total of 72 MOSFETs are used in each robot, providing stable and efficient power support for precise robotic motion.
3. One-Stop Component Solution
Leveraging its extensive manufacturer resources, Fortune Techgroup provides not only power MOSFETs, but also protection devices, analog signal-chain products, and high-reliability passive components. This creates a one-stop solution covering both core components and system-level supporting components, reducing supply chain management complexity and improving product development efficiency.
4. Broad Prospects for Large-Scale Applications
The project’s total robot shipments are expected to reach 30,000–50,000 units in 2026. Based on 72 MOSFETs per robot, annual MOSFET demand is expected to exceed 2 million units, making this an important practical example of the large-scale adoption of domestically manufactured power devices in the embodied intelligence robotics sector.
Application Results
The joint drive solution provided by Fortune Techgroup has been successfully implemented in multiple quadruped robot products developed by Zhishen Technology, including the “Tongchui M1” mid-sized quadruped robot and the “Gangbeng L1” lightweight quadruped robot.
The Tongchui M1 features an almost 1:1 payload-to-weight ratio and IP67 protection, making it suitable for demanding applications such as power grid inspection and fire and rescue operations.
The Gangbeng L1 adopts a lightweight design and features IP54 protection, making it suitable for light- and medium-load applications such as security patrols and industrial park inspections.
Continuously empowering the Embodied Intelligence Industry
As the embodied intelligence robotics industry enters a period of rapid development, demand for high-performance, highly reliable domestically manufactured electronic components will continue to grow.
Going forward, Fortune Techgroup will continue to leverage its strengths in IC products and system solutions, working closely with high-quality partners such as Jiejie Microelectronics. Focusing on key areas including robotic joint drives, power management, motion control, and intelligent sensing, Fortune Techgroup will continuously enhance its overall embodied intelligence solutions and promote the large-scale adoption of domestically manufactured core electronic components in the robotics industry, contributing to the high-quality development of the sector.
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