Solid-state circuit breaker (SSCB)

Replacement of a 100-year old technology

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Overview

Electro-mechanical circuit breakers were developed a 100 years ago. Now it is time for a smart, intelligent solid-state device. While conventional electro-mechanical components exhibit performance limitations, solid-state solutions unleash unprecedented control and protection capabilities. The advanced power semiconductors enable cost efficient and reliable solutions on a broad scale and integrates advanced functionality into one single device.

Benefits

  • AC and DC agnostic
  • Isolates faults in sub µs range
  • Captures and logs data in real time
  • Smart power balancing
  • Enables control of peak loads
  • Real-time control capability
  • Wear-free load switching
  • Programmable trip characteristics
  • Offers secure web/IoT connectivity
  • Supports smart billing
  • State-of-health diagnostics
  • Certification standard compliant

Block diagram

About

From sense – compute – actuate to the next level of connectivity

Our product portfolio for solid-state circuit breakers, which combine protection, actuation, load control, diagnostic, metering and secure communication in one, ranges from power switches and corresponding gate drivers to sensors, microcontrollers, memories, communication and security devices. This supports seamless system integration in combination with wide power range and feature scaling capability.

Power stage

The power stage plays a crucial role in solid-state circuit breaker application. Infineon offers a broad portfolio of power switch solutions that are optimized for this application. Depending on the system voltage resp. system current Power MOSFETs as discrete devices or as power modules can be chosen.
The new CoolSIC™ JFET product family delivers minimized conduction losses, solid turn-off capability and high robustness. This makes them ideal for advanced solid state-protection and distribution.

Matching isolated/non-isolated gate drivers complete the power device portfolio for solid-state circuit breakers.

More about Power MOSFETs
More about CoolSIC™ JFET
More about Gate Driver ICs
Sensing, supply and isolation

Used to measure both AC and/or DC currents, Infineon’s XENSIV™ - high-precision coreless current sensors provide accurate and stable current measurement.

The latest iteration of fixed frequency flyback controller and CoolSET™ offers a high level of integration with enhanced and comprehensive suite of protection. ISOFACE™ dual- and quad-channel digital isolators provide robust high-voltage isolation with precise timing and low power consumption.

 

More about CoolSET™
More about XENSIV™
More about ISOFACE™
Logic, memory and communication

For remote control, diagnostics, monitoring, and maintenance purposes, discover Infineon’s 32-bit industrial microcontroller XMC™ family or PSOC family. Take a look at Infineon’s wide range of volatile and non-volatile memories, including types such as SRAM, SEMPER™  Secure NOR Flash, F-RAM or non-volatile SRAM to complement system microcontrollers.

For one of the best-embedded security products on the market, choose the OPTIGA™ Trust product family. And consider Infineon’s USB or Wi-Fi controllers to meet the latest IoT networking needs. To minimize galvanic isolation efforts, circuit breakers communicate with all other systems compensation the control cabinet via our AIROC™  Bluetooth devices.

More about XMC™
More about OPTIGA™ Trust
More about memories
More about connectivity solutions

From sense – compute – actuate to the next level of connectivity

Our product portfolio for solid-state circuit breakers, which combine protection, actuation, load control, diagnostic, metering and secure communication in one, ranges from power switches and corresponding gate drivers to sensors, microcontrollers, memories, communication and security devices. This supports seamless system integration in combination with wide power range and feature scaling capability.

Power stage

The power stage plays a crucial role in solid-state circuit breaker application. Infineon offers a broad portfolio of power switch solutions that are optimized for this application. Depending on the system voltage resp. system current Power MOSFETs as discrete devices or as power modules can be chosen.
The new CoolSIC™ JFET product family delivers minimized conduction losses, solid turn-off capability and high robustness. This makes them ideal for advanced solid state-protection and distribution.

Matching isolated/non-isolated gate drivers complete the power device portfolio for solid-state circuit breakers.

More about Power MOSFETs
More about CoolSIC™ JFET
More about Gate Driver ICs

Sensing, supply and isolation

Used to measure both AC and/or DC currents, Infineon’s XENSIV™ - high-precision coreless current sensors provide accurate and stable current measurement.

The latest iteration of fixed frequency flyback controller and CoolSET™ offers a high level of integration with enhanced and comprehensive suite of protection. ISOFACE™ dual- and quad-channel digital isolators provide robust high-voltage isolation with precise timing and low power consumption.

 

More about CoolSET™
More about XENSIV™
More about ISOFACE™

Logic, memory and communication

For remote control, diagnostics, monitoring, and maintenance purposes, discover Infineon’s 32-bit industrial microcontroller XMC™ family or PSOC family. Take a look at Infineon’s wide range of volatile and non-volatile memories, including types such as SRAM, SEMPER™  Secure NOR Flash, F-RAM or non-volatile SRAM to complement system microcontrollers.

For one of the best-embedded security products on the market, choose the OPTIGA™ Trust product family. And consider Infineon’s USB or Wi-Fi controllers to meet the latest IoT networking needs. To minimize galvanic isolation efforts, circuit breakers communicate with all other systems compensation the control cabinet via our AIROC™  Bluetooth devices.

More about XMC™
More about OPTIGA™ Trust
More about memories
More about connectivity solutions

Documents

Documents

Design resources

Developer community

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