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Robotics solutions and case studies


ケーススタディ: Sewer inspection robot

case study image

Power more sensors without increasing weight

Power more sensors without increasing weight

Improved sensors, autonomy, mobility and AI (allowing deep learning) is enabling inspection robots to replace humans, especially in hazardous or confined areas like inside pipelines or in storage tanks. Manufacturers are looking for smaller, more robust solutions with ever improved resolution, repeatability and operating range. This manufacturer of tethered sewer inspection robots was looking to improve the sensor resolution and quality of video images without increasing the size of the platform. The key goals were:

  • Allow easier handling and room for more sensors by reducing power supply size and weight
  • Minimize interference with cable carrying video feed
  • Reliable operation in a harsh environment

High efficiency in all environments

High efficiency in all environments

The 48V (SELV) supply to the tether was provided by a PFM AC-DC converter.  On board the robot the three rails were provided by three individual regulators. Key benefits were:

  • ZVS buck and buck-boost regulators offered high power density and low weight (0.8g)
  • Low noise ZVS topology minimized filtering required
  • High efficiency (up to 92.5%) reduced heat, increasing reliability in high ambient temperatures

Vicor ZVS Buck and Buck-Boost regulators reduced the size of the solution

The power delivery network: The 48V tether supply was provided by a PFM AC-DC converter. At the robot the low power 5V and 3.3V rails were provided by ZVS Buck regulators. The higher power 12V motor supply rail was provided by an array of three ZVS Buck-Boost converters that compensated for large voltage drops in the 600m tether. To analyze this power chain go to the Vicor Whiteboard online tool.

Learn more about the modular approach power.

Security robot solution

PFM AC-DCコンバータ

出力電圧: 24V or 48V

出力電力: 最大400W

ピーク効率: 最大92%

110.55 x 35.54 x 9.40mm

ZVS 降圧レギュレータ

入力電圧: 12V (8 – 18V), 24V (8 – 42V), 48V (30 – 60V)

出力電圧: 2.2 – 16V 

出力電流: 最大22A

ピーク効率: 最大98%

10.0 x 10.0 x 2.56mm  他

Buck Boost

ZVS 昇降圧レギュレータ

入力電圧: 8 – 60V

出力電圧: 10 – 54V

出力電流: 最大150W(連続)

効率: 98%以上

10.5 x 14.5 x 3.05mm


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