Humanoid robot power distribution

Design efficient, protected power distribution from the battery to actuators, processors, sensors, and communication systems

Overview

Humanoid robot power distribution must handle high peak currents and dynamic loads across actuators, AI compute, sensors, and communications. Infineon solutions combine protection ICs, DC-DC conversion, power switching, and voltage and current sensing to deliver energy reliably from the battery to each subsystem. Build compact, scalable architectures that extend runtime, increase power density, and reduce size, weight, and thermal losses.

Benefits

  • Efficient DC-DC conversion
  • Battery and load protection
  • Controlled inrush current
  • High power density
  • Precise current monitoring
  • Longer battery runtime
  • Scalable robot power architecture
  • Lower thermal losses

Block diagram

About

Protect the battery bus, distributed power rails and loads

Build a coordinated protection architecture from the battery input to distributed load branches. Hot-swap controllers and eFuses provide controlled power-up, inrush current limiting, overcurrent and short-circuit protection, and support safe operation within the MOSFET safe operating area (SOA). They can also support pre-charge and battery or load disconnect functions in high-power distribution paths. PROFET™ smart power switches integrate power switching, protection, diagnostics, and load monitoring, enabling compact and intelligent control of distributed loads.

Integrated sensing, diagnostics, and telemetry provide the system controller with visibility into current, voltage, power consumption, and fault status, enabling intelligent load management, fault detection, and controlled recovery.

Coordinating protection at the battery, main bus, and individual branches helps prevent a fault on one power rail from disrupting the entire robot power system. Scalable device and topology options support centralized, distributed, and zonal power architectures.

Discover protection and monitoring ICs
Find PROFET™ high-side switches

Convert battery power for compute, sensing, and control

Create an efficient power tree from the main battery bus to the intermediate and point-of-load rails required by AI processors, sensors, communications, motor-control electronics, and cooling systems. Infineon switching regulators, digital power controller, multiphase controllers, power stages, LDOs, and PMICs enable efficient and precise voltage regulation across centralized and distributed power architectures.

Engineers can select controller-based or highly integrated solutions to match input voltage, output current, transient response, switching frequency, board area, and thermal requirements at each conversion stage. Digital power solutions can also provide configuration, monitoring, and telemetry to optimize power delivery as operating conditions change.

A coordinated DC-DC solution reduces conversion losses and heat, extends battery runtime, and enables compact power modules close to critical loads. Fast transient response helps maintain stable supply rails as compute and actuator power demand changes dynamically.

Compare DC-DC converter options
Find OPTIREG™ power supply ICs

Control high-current power paths

Control high-current paths between the battery, power distribution unit, and distributed loads with high-side gate drivers and external power MOSFETs. Infineon gate drivers enable controlled switching, protection, and monitoring for battery disconnect, load isolation, and power-rail control. They support single, back-to-back, or parallel MOSFET configurations to address different current levels and blocking requirements, with selected devices providing inrush-current management, current sensing, and advanced diagnostics.

Select high-side gate drivers
Learn about the 1EDL8011

Reduce power losses with OptiMOS™ MOSFETs

Select power MOSFETs for battery protection, power distribution, motor drives, DC-DC conversion, and load control. Low on-resistance minimizes conduction losses in high-current paths, while optimized switching performance supports efficient power conversion and compact thermal designs. Infineon offers a broad portfolio of voltage ratings, RDS(on) classes, and package options to address different power requirements.

Engineers can match MOSFETs to bus voltage, load current, switching frequency, thermal constraints, and safe operating area (SOA) requirements. Combined with protection controllers and gate drivers, optimized MOSFET selection enables efficient, compact, and robust power paths from the battery to distributed loads.

Browse N-channel MOSFETs

Increase DC-DC power density with CoolGaN™

Increase DC-DC power density with high-performance GaN power solutions. High switching speed and low switching losses enable higher operating frequencies, smaller magnetic components, and compact thermal designs. These advantages are particularly valuable in humanoid robots, where every watt of loss, gram of weight, and cubic centimeter can affect runtime and mechanical performance.

Infineon discrete and integrated GaN solutions provide flexibility across converter topologies, power levels, and integration requirements. Integrated power stages can simplify gate-drive design and layout, while discrete devices enable application-specific optimization.

GaN technology enables efficient, compact DC-DC conversion from the battery bus to intermediate and point-of-load rails, helping engineers balance efficiency, power density, thermal performance, board area, and electromagnetic compatibility.

Discover medium-voltage CoolGaN™

Measure current for protection and power management

Add current sensing across the battery, main bus, and distributed load branches to provide system-wide visibility into power flow. Infineon shunt-based current sensors enable accurate monitoring across individual power rails, supporting converter control, overcurrent protection, and fault detection. Magnetic current sensors are well suited for high-current paths, enabling efficient monitoring of battery and branch current with low insertion loss.

Real-time current data, combined with voltage information, enables power and energy monitoring, load profiling, and system-level energy management. This visibility helps the system controller track power consumption across major loads, detect abnormal operating conditions, and optimize the use of available battery energy.

Select XENSIV™ current sensors

Protect the battery bus, distributed power rails and loads

Build a coordinated protection architecture from the battery input to distributed load branches. Hot-swap controllers and eFuses provide controlled power-up, inrush current limiting, overcurrent and short-circuit protection, and support safe operation within the MOSFET safe operating area (SOA). They can also support pre-charge and battery or load disconnect functions in high-power distribution paths. PROFET™ smart power switches integrate power switching, protection, diagnostics, and load monitoring, enabling compact and intelligent control of distributed loads.

Integrated sensing, diagnostics, and telemetry provide the system controller with visibility into current, voltage, power consumption, and fault status, enabling intelligent load management, fault detection, and controlled recovery.

Coordinating protection at the battery, main bus, and individual branches helps prevent a fault on one power rail from disrupting the entire robot power system. Scalable device and topology options support centralized, distributed, and zonal power architectures.

Discover protection and monitoring ICs
Find PROFET™ high-side switches

Convert battery power for compute, sensing, and control

Create an efficient power tree from the main battery bus to the intermediate and point-of-load rails required by AI processors, sensors, communications, motor-control electronics, and cooling systems. Infineon switching regulators, digital power controller, multiphase controllers, power stages, LDOs, and PMICs enable efficient and precise voltage regulation across centralized and distributed power architectures.

Engineers can select controller-based or highly integrated solutions to match input voltage, output current, transient response, switching frequency, board area, and thermal requirements at each conversion stage. Digital power solutions can also provide configuration, monitoring, and telemetry to optimize power delivery as operating conditions change.

A coordinated DC-DC solution reduces conversion losses and heat, extends battery runtime, and enables compact power modules close to critical loads. Fast transient response helps maintain stable supply rails as compute and actuator power demand changes dynamically.

Compare DC-DC converter options
Find OPTIREG™ power supply ICs

Control high-current power paths

Control high-current paths between the battery, power distribution unit, and distributed loads with high-side gate drivers and external power MOSFETs. Infineon gate drivers enable controlled switching, protection, and monitoring for battery disconnect, load isolation, and power-rail control. They support single, back-to-back, or parallel MOSFET configurations to address different current levels and blocking requirements, with selected devices providing inrush-current management, current sensing, and advanced diagnostics.

Select high-side gate drivers
Learn about the 1EDL8011

Reduce power losses with OptiMOS™ MOSFETs

Select power MOSFETs for battery protection, power distribution, motor drives, DC-DC conversion, and load control. Low on-resistance minimizes conduction losses in high-current paths, while optimized switching performance supports efficient power conversion and compact thermal designs. Infineon offers a broad portfolio of voltage ratings, RDS(on) classes, and package options to address different power requirements.

Engineers can match MOSFETs to bus voltage, load current, switching frequency, thermal constraints, and safe operating area (SOA) requirements. Combined with protection controllers and gate drivers, optimized MOSFET selection enables efficient, compact, and robust power paths from the battery to distributed loads.

Browse N-channel MOSFETs

Increase DC-DC power density with CoolGaN™

Increase DC-DC power density with high-performance GaN power solutions. High switching speed and low switching losses enable higher operating frequencies, smaller magnetic components, and compact thermal designs. These advantages are particularly valuable in humanoid robots, where every watt of loss, gram of weight, and cubic centimeter can affect runtime and mechanical performance.

Infineon discrete and integrated GaN solutions provide flexibility across converter topologies, power levels, and integration requirements. Integrated power stages can simplify gate-drive design and layout, while discrete devices enable application-specific optimization.

GaN technology enables efficient, compact DC-DC conversion from the battery bus to intermediate and point-of-load rails, helping engineers balance efficiency, power density, thermal performance, board area, and electromagnetic compatibility.

Discover medium-voltage CoolGaN™

Measure current for protection and power management

Add current sensing across the battery, main bus, and distributed load branches to provide system-wide visibility into power flow. Infineon shunt-based current sensors enable accurate monitoring across individual power rails, supporting converter control, overcurrent protection, and fault detection. Magnetic current sensors are well suited for high-current paths, enabling efficient monitoring of battery and branch current with low insertion loss.

Real-time current data, combined with voltage information, enables power and energy monitoring, load profiling, and system-level energy management. This visibility helps the system controller track power consumption across major loads, detect abnormal operating conditions, and optimize the use of available battery energy.

Select XENSIV™ current sensors
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