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The Vicor power module has become the “Absolute Shadow” power source for the robot dog

Throughout the development of robot dogs, the early robot dogs were bulky, heavy, and had insufficient joint flexibility and restricted movement, making them unable to adapt to complex operating environments. It is worth mentioning that the strength displayed by Boston Dynamics’ robot dogs is undeniable and has a certain industry status. Today, Yunshen Technology, a high-tech company rising in China, has not been reluctant, and has changed its research and development thinking to be application-oriented. After several years of development, it has developed a robot dog with a dexterous appearance, fast movement, and high dynamic balance ability. “Shadow”.

―It has the characteristics of smart shape, fast movement, high dynamic balance ability, etc.

Throughout the development of robot dogs, the early robot dogs were bulky, heavy, and had insufficient joint flexibility and restricted movement, making them unable to adapt to complex operating environments. It is worth mentioning that the strength displayed by Boston Dynamics’ robot dogs is undeniable and has a certain industry status. Today, Yunshen Technology, a high-tech company rising in China, has not been reluctant, and has changed its research and development thinking to be application-oriented. After several years of development, it has developed a robot dog with a dexterous appearance, fast movement, and high dynamic balance ability. “Shadow”.

The Vicor power module has become the “Absolute Shadow” power source for the robot dog

The robot dog “Jueying” is 85 centimeters long, 65 centimeters tall when standing, and weighs about 40 kilograms. Its appearance is more dexterous and round. With the design of bionic legs and more powerful joint drive ability, it can jump over obstacles of about 40 cm, take off at a height of 70 cm, stand up to 1.5 meters long, and its top speed exceeds 7 kilometers per hour.

The robot dog “Jueying” can run with its hind legs and front legs rushing forward, its center of gravity is up and down, and it can smoothly pass through the pavement covered with large bricks and stones. At the same time, “Jueying” has enough perception ability to successfully find its own “kennel” – charging pile, and get on it to charge itself.

Powerful little heart

Different from the weight-bearing capacity of hundreds of kilograms on the market, the robot dog “Jueying” has a weight-bearing capacity of about 10-20 kilograms. Li Feng, chief engineer of the deep cloud, said: “We want to develop a lighter robot dog for industrial applications, so carrying some lightweight sensors and internal components has become a necessary consideration at the beginning of the design, helping the robot dog to be “jueying” The Vicor DCM3623 power module, which enables the new modal functionality, is a major contributor.”

The Vicor power module has become the “Absolute Shadow” power source for the robot dog

The improvement in the shape of the robot dog “Jueying” depends on the size and weight of the internal components. Due to its limited internal space, there is no more space for heat dissipation. Therefore, high conversion efficiency power modules have become the focus of system design engineers. Benefiting from the miniaturization, light weight and high conversion efficiency of the Vicor DCM3623 power module, it is possible to make the robot dog “jueying” smart and more flexible, which has attracted much attention in the industry.

The system power requirements of the upgraded version of the robot dog:

· high efficiency;

o Support the improvement of system battery life

o Limited cooling space

· Small size;

・Light weight;

・ High heat dissipation;

The lithium battery (80V) supplies power to the robot dog system, and the two-stage conversion is used to supply power to the system equipment: the voltage of the 80V lithium battery is converted to the bus voltage and then the secondary conversion is performed, and the entire power is about 200W. DCM3623, a member of DCM ChiP, is leading the way in the field of robotic dogs.

The newest member of the DCM™ family is packaged in a ChiP (Converter housed in Package™) package, supporting an unmatched power density of 1,032W/in3. The DCM ChiP is a DC-DC converter module that provides a proven and faster power system design option than other discrete solutions. The DCM supports a wide range of unregulated operating input voltages and generates a regulated isolated DC output. The DCM utilizes a high frequency zero voltage switching (ZVS) topology that provides consistently high efficiency over its entire input voltage range.

DCM3623 main features:

・ Updated low-power DC/DC product series

・ Power: up to 240W

・ Efficiency: up to 93% peak efficiency

・ Small size: 36.38 x 22.8 x 7.26mm

・ Lightweight

・ ChiP package

Fully automated production drives commercial applications

The Vicor power module has become the “Absolute Shadow” power source for the robot dog

A point that needs special mention is that DCM3623 is the first small and medium-power labelled power module chip (SM-Chip), which introduces the chip manufacturing concept into the production of power modules. Now it has achieved fully automated production. Compared with Vicor’s previous semi-automatic production, this The price of the series of products can be greatly reduced, the product consistency is further improved, and it is more suitable for large-scale commercial applications.

easy to design

System engineers admit that they do not have more energy to consider more in-depth power supply knowledge, hoping that complex functions can be integrated, and simple and reliable peripheral circuits are a guideline for their selection, and the Vicor DCM3623 power module just meets their needs: No complex calculations, designs and connections are required. It can be said that Vicor’s initial design is for system engineers, and everything is based on simplifying system design. At the same time, the technical characteristics of power modules must also meet the requirements of system operation for stability and reliability.

Electromagnetic Compatibility

“The robot dog is an environment where multiple motor drives work together, and electromagnetic interference is a problem that must be faced, but we will not worry about it during system verification. On the one hand, Vicor’s package design has made in-depth consideration of electromagnetic compatibility. On the other hand, the Vicor team and the robot dog development team jointly developed and looked for solutions, and successfully solved the noise problems such as surge, high-frequency “calling” and “humming”, and the reliability of the system has been fully guaranteed.” Cloud Li Feng, chief engineer of the deep, said.

When talking about the application scenarios of the robot dog, Li Feng, chief engineer of Yunshen, said: “The robot dog can largely replace humans to do some tasks that humans are unwilling to do, such as inspection work. Ultimately, the robot dog can be used in Jobs with high difficulty and high risk factors, such as arranging explosions, mine exploration, field exploration, etc. At present, such robot dogs have been successfully applied to different customers and play different roles.”

The future can be expected

Today we see that the robot dog “Jueying” is more adaptable and has a wider range of application scenarios. It has been further improved in terms of weight, volume, sports performance, and perception ability, and has also made breakthroughs in control algorithms. Some aspects are better than Boston Dynamics. Focusing on their respective strengths and being application-oriented allows system application engineers to pay more attention to product features without having to think too much about the power supply system itself, which has become the unswerving initial aspiration of Vicor power supply engineers. It is believed that with the continuous deepening of technical cooperation, it will be possible to realize the commercial production and application of robot dogs, and Cloud Deep Technology is also expected to become a leader in China’s collaborative robot industry.

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