HEV/EV OBC & DC/DC converter

Real-time control MCUs

Advances in real-time control have increased processing capabilities and expanded sensing and actuation performance, resulting in higher precision and efficiency to make vehicles more affordable.

Benefits include: 

• Reduced size and weight: low latency control loops and high resolution PWMs enable higher switching frequencies which reduce the physical size and weight of passives and magnetics.
• Improved power density and efficiency: unlock the benefits of wide band-gap (WBG) gallium nitride and silicon carbide semiconductors that require 100-kHz to 1-MHz switching frequencies.
• System integration to reduce cost: cores and peripherals enable advanced power topologies and support the integration of multiple power conversions on a single MCU.

Isolated gate drivers

A gate driver provides galvanic isolation between the input and output and drives the insulated-gate bipolar transistor-, silicon- or silicon carbide-based power factor correction stage.

Benefits include:

• Improved system-level efficiency: minimized switching and conduction losses that include turnon and turnoff energy.
• Reduced overall system size and weight: increased switching frequencies enable a significant reduction in overall system magnetics and weight, while a dual-channel driver implementation reduces overall printed circuit board area and bill of materials compared to single-channel options.
• System reliability: galvanic isolation and high common-mode transient immunity increase system resilience to transients and noise.

The right bias power supply solution

Optimize costs while improving power density and efficiency to meet your system requirements. Choose from a portfolio of bias power supplies with integrated field-effect transistors (FETs) and magnetics, integrated FETs and external magnetics, or external FETs and external magnetics.

Benefits include:

• Improved power density and efficiency in a small footprint, with >150-V/ns common-mode transient immunity and mitigated electromagnetic interference.
• Streamlined functional safety, with International Organization for Standardization 26262 compliance and system-level diagnostics and protection.
• Protected power modules, with high load regulation accuracy and thermal performance.

Voltage and current sensing

Achieve accurate, low-latency current and voltage measurements with high common-mode transient immunity and working voltages, thereby improving the system efficiency, reliability and performance of onboard charging systems.

Benefits include:

• Capacitive isolation, which enhances safety and lowers system costs.
• High bandwidth for faster control and reaction times, enabling higher system reliability and better performance.
• Easier design complexity, which eliminates the need for external protection.

Design efficiency

A compact and efficient design of the electromagnetic interference (EMI) input filter is critical to achieving the full benefits of electrification.  Active EMI filter ICs reduce magnetic component and overall filter size relative to a passive-only design.

Benefits include:

• Easier system integration: due to a more compact size and smaller packaging.
  
• Reduced component power losses: enables better thermal management, higher efficiency, longer component lifetime and increased system-level reliability.
• Lower component weight: provides better mechanical robustness and improved performance.
• Improved high-frequency: the smaller-sized chokes have lower parasitic interwinding capacitance, which improves filter attenuation at the high frequencies.