Powering Intelligent Automation Systems

Robotics and automation systems require power solutions that deliver high efficiency and power density in minimal space while providing the fast transient response critical for precise motion control. Modern robots, cobots, and automated systems must operate efficiently with minimal thermal impact while providing reliable power for servos, processors, vision systems, and communication modules.

Our robotics power solutions address the unique requirements of robotic systems including space constraints, dynamic load characteristics, electromagnetic compatibility, and safety considerations. The high efficiency of our modules reduces thermal dissipation in enclosed robot joints and control systems, while our compact packages maximize available space for other components.

Robotics & Automation Applications

Technology Advantages for Robotics

High Power Density

Robotics applications have extreme space constraints that demand maximum power in minimum volume. Our ChiP and VIA technologies enable power densities that fit within robot joints and control systems.

  • Up to 300W/in³ power density with ChiP
  • Reduced system weight for mobile robots
  • More space for other components
  • Higher integration capability
  • Compact servo drive designs

Fast Transient Response

Robot systems have rapidly changing loads as servos accelerate and decelerate. Fast transient response is critical for stable performance.

  • Preserved power delivery network dynamics
  • Factorized Power Architecture options
  • Fast regulation and isolation
  • Dynamic response for servo systems
  • Stable power under load changes

Low EMI/EMC

Robots often include sensitive sensors and communication systems that can be affected by power supply noise. Our ZVS technology inherently produces low EMI.

  • ZVS architecture reduces switching noise
  • Minimal interference with sensors
  • Compliance with industrial standards
  • Preserved signal integrity
  • Integration-friendly design

Efficient Heat Management

In enclosed robot joints and control cabinets, thermal management is critical. High efficiency reduces thermal dissipation requirements.

  • Up to 96% efficiency in DCMs
  • Reduced cooling requirements
  • Higher reliability in enclosed spaces
  • Thermal management in joint actuators
  • Compact cooling solutions

Robotics Design Considerations

Servo Power Requirements

Servo systems present unique power challenges with rapidly changing current demands:

  • Current peaks during acceleration
  • Regenerative power during braking
  • Fast current change requirements
  • Multiple voltage rails needed
  • EMI-sensitive feedback systems

Recommended Approach:

  • Use FPA for high-current servo rails
  • Separate low-noise supplies for sensors
  • Hierarchical power architecture
  • Proper filtering and grounding

Mobile Power Challenges

Mobile robots and AGVs face unique power challenges:

  • Variable battery voltage during discharge
  • Weight constraints for mobility
  • Efficiency for battery life extension
  • Wide input voltage ranges
  • Energy harvesting opportunities

Mobile Solutions:

  • Wide-input voltage modules
  • High-efficiency conversion
  • Energy recovery systems
  • Low quiescent power

Environmental Requirements

Robotics systems operate in diverse environments with specific requirements:

Industrial Environments:

  • Temperature: -40°C to +85°C
  • Vibration and shock resistance
  • Dust and moisture protection
  • EMI from other equipment
  • Wide voltage variations

Collaborative Systems:

  • Enhanced safety requirements
  • Electromagnetic compatibility
  • Low acoustic noise
  • Safe failure modes
  • Human-safe voltage levels

Outdoor/Mobile:

  • Weather resistance
  • Wide temperature ranges
  • UV resistance
  • Seismic/vibration tolerance
  • Contamination protection

Recommended Products for Robotics Applications

DCM for Servo Power

Fixed-ratio bus converters with galvanic isolation for servo and motor drive applications.

  • High efficiency >95%
  • Galvanic isolation
  • Fast transient response
  • Compact ChiP packages
  • Low EMI due to ZVS

Factorized Power Architecture

PRM + VTM combination for high-current servo applications with preserved dynamics.

  • Current multiplication with FPA
  • Preserved power delivery dynamics
  • Galvanic isolation
  • Fast transient response
  • High power density

BCM for Current Multiplication

Bus Converter Modules for applications requiring current multiplication with galvanic isolation.

  • High efficiency >96%
  • Current multiplication
  • Galvanic isolation
  • Wide temperature operation
  • Robust construction

ChiP Packaging Technology

Converter in Package technology for maximum power density in minimal space.

  • Eliminates external components
  • Low EMI due to small loop area
  • High power density
  • Simplified assembly
  • Robust surface mount

NBM for Backup Power

Bi-directional modules for uninterruptible power in safety-critical robotic systems.

  • Bi-directional power flow
  • For backup power applications
  • Seamless power transitions
  • Safety system support

Custom Power Trees

Tailored power architectures for specific robotic applications and form factors.

  • Application-specific designs
  • Optimized for space constraints
  • Integrated control features
  • Specialized protection

System Architecture Examples

Robotic Arm Power Architecture

In a 6-axis robotic arm, space and weight are critical in each joint while power demands can be highly dynamic:

  • Main bus voltage (often 24V or 48V) distributed to each axis
  • Compact power modules in each joint for servo amplifiers
  • Separate low-noise rails for encoders and sensors
  • Fast transient response for motion control

Implementation:

Use DCM or BCM modules in ChiP packages for servo rail generation. High-efficiency conversion is critical to minimize thermal dissipation in enclosed joints. Low EMI to prevent interference with position encoders and sensor systems.

Mobile Robot Power System

Mobile robots and AGVs require efficient conversion from battery voltage to multiple system rails:

  • Battery voltage management (Li-ion, LiFePO4, etc.)
  • Multiple voltage rails from single battery
  • Efficiency for maximum runtime
  • Energy recovery during braking

Design Approach:

Wide-input voltage modules to accommodate battery discharge curve. High-efficiency conversion to maximize runtime. Separate power trees for critical systems vs. less critical functions. Battery management systems with charge and discharge control.

Factory Automation Power Distribution

Distributed power for sensors, actuators, and control systems throughout a factory floor:

  • Distributed 24V DC power to field devices
  • Local conversion for specific requirements
  • EMC compliance for industrial environments
  • Long-term reliability in harsh environments

System Design:

DIN rail power supplies for centralized conversion. Local point-of-load conversion using DCM or PRM modules. EMI filtering and surge protection for industrial environments. Redundant systems for critical applications.

Cobot Safety System Power

Collaborative robots require redundant and safe power systems for human-robot safety:

  • Redundant power supplies for safety functions
  • Fault-tolerant power for safety systems
  • Safe shutdown capability
  • Human-safe voltage levels

Safety Implementation:

Functional safety-rated components (SIL/PL ratings). Redundant power paths for critical safety functions. Safe output behavior in fault conditions. Diagnostic coverage for safety functions.

Performance Requirements by Application

Application Power Density Efficiency Transient Speed EMI Requirements Reliability
Industrial Robots High >95% Fast Moderate High
Collaborative Robots High >95% Fast Strict Very High
Mobile Robots Medium-High >96% Medium Moderate High
Servo Systems High >96% Very Fast Strict High
Factory Automation Medium >93% Medium Moderate Very High

Robotic System Design Support

Motion Control Power Design

Specialized support for servo and motion control power systems.

EMC/EMI Optimization

Guidance on minimizing electromagnetic interference in robotic systems.

Thermal Management

Design assistance for thermal challenges in enclosed robot systems.

System Integration

Help with integrating power systems into complete robotic solutions.

Safety System Design

Support for safety-rated power systems in collaborative robots.

Mobile Power Systems

Design assistance for power management in mobile robot platforms.

Power Your Next Robotic System

Our robotics specialists have extensive experience with power solutions for robotic and automation systems. Contact us for application-specific recommendations and design support.