Vicor Corporation · NASDAQ:VICR
Vicor — 2025 AID, Seoul Korea
20 slides from Vicor's conference presentation, 2025
Slide 1: Voltage conversion with Sine Amplitude Converter: performance, benefits and applications
Voltage conversion with Sine Amplitude Converter: performance, benefits and applications Gregory Green, Director of Automotive Marketing 2025 AID, Seoul Korea ©2025 Vicor 1
Slide 2: Overview
Overview ◼ The amount of Safety Electrical Low Voltage (SELV) at 12V or 48V is increasing due to electrification and ADAS loads – New vehicles require fast responding power supplies – Bidirectional power is needed for regeneration from key loads – Multiple batteries can be required for SELV Loads ◼
Slide 3: Zonal Architecture
Zonal Architecture Cabin heating Heated Windshield AC Condenser Auxiliary Power Brake by wire Steer by wire Traction PDN Active Suspension ©2025 Vicor 3
Slide 4: BEV HV architecture
BEV HV architecture ©2025 Vicor 4
Slide 5: Characteristics of a HV battery
Characteristics of a HV battery ©2025 Vicor 5
Slide 6: 48V – main low voltage bus for future architectures
48V – main low voltage bus for future architectures ◼ Started with 48V BSG and battery ◼ Now DC-DC and battery ◼ Typical loads require more power (pumps, motors, heaters) – SELV Benefit compared to HV supply is safety – 48V Benefits compared to 12V are more power, more performance, less weight ◼ Con
Slide 7: Current 48V bus solutions for xEV
Current 48V bus solutions for xEV Challenges: ◼ Weight and size ◼ Cost ◼ Maintenance efforts ◼ Lifetime of 48V battery ©2025 Vicor 7
Slide 8: Proposed solution: Sine Amplitude Converter (SAC)
Proposed solution: Sine Amplitude Converter (SAC ) ©2025 Vicor 8
Slide 9: Proposed solution: Sine Amplitude Converter
Proposed solution: Sine Amplitude Converter ◼ Resonant topology – Operates at resonant frequency, fixed gain ◼ Soft switching, constant frequency/duty – Low EMI profile – Switching losses minimized ◼ Enables higher switching frequencies and lower volume/weight ◼ Transformer design, resonant circuit
Slide 10: Topology example of SAC implementation – BCM
Topology example of SAC implementation – BCM ©2025 Vicor 10
Slide 11: Example of SAC implementation – BCM
Example of SAC implementation – BCM ◼ Up to 5 kW peak power, or 100A peak current ◼ Losses and package performance – Peak efficiency 98.3%, full power 97.8% – Power losses up to 55W ◼ Thermal resistance 0.7K/W ◼ Symmetrical power flow capability ◼ How is it possible? – In house development for contr
Slide 12: BCM6135 for 800V to 48V with isolation
BCM6135 for 800V to 48V with isolation BCM6135AJ2F5880A06 Creates 4242V input to output Provides 20kW of power when built isolation internally in an array of 10 modules Symmetrical performance in buck or boost Peak Power 2.5 kW VIN Range 520 – 920V VOUT Range 32.5 – 57.5V Highest current Peak Curren
Slide 13: Bidirectional current flow and bandwidth
Bidirectional current flow and bandwidth No dead zone in Transition VDR is constant Linear Transition over change in between forward current direction and reverse ©2025 Vicor 13
Slide 14: Symmetrical Power Processing
Symmetrical Power Processing BCM6135 Step-Down Efficiency vs Load BCM6135 Step-Up Efficiency vs Load 98 98 96 Efficiency (%) 96 Efficiency (%) 94 94 92 92 90 90 88 88 0 10 20 30 40 50 60 70 80 0 1 2 3 4 5 Load (A) Load (A) 520V 640V 800V 920V 32.5V 40V 50V 57V VICOR CONFIDENTIAL ©2022 Vicor 14
Slide 15: Application Examples
Application Examples Active suspension Power Delivery Network Just 3 SAC Modules IR Heating Zonal enable a multitude of architectures applications through flexibility and scalability ©2025 Vicor 15
Slide 16: Active roll suspension system
Active roll suspension system 800V 48V BCM6135 48V power is a key Symmetrical buck/boost BCM6135 current slew enabler to having correctly capability of BCM6135 rate (speed of current sized actuators for stability perfectly aligns with the changes) of 8.0M A/s and roll control requirements of active
Slide 17: 3 – 4x improvement in power density
3 – 4x improvement in power density Vicor Solution Tesla Model X Vitesco 4th Generation Pout W (Output Power) 4000 @ 13.8V 2300 @ 12 V 3500 @ 14.5V Weight kg 1.7 2.1 2.6 Footprint mm2 24500 30520 50000 Volume L (w/o connectors) 1.7L (275 x 155 x 42) 1.8L (140 x 218 x 60) 2.5 L (250 x 200 x 50) Effic
Slide 18: Infrared cabin heating / windshield heating
Infrared cabin heating / windshield heating 800V 48V BCM6135-A06 2.5 kW 800V to 48V Heating an EV passenger IR heating is a more efficient compartment requires additional method to heat the passengers. Isolated without Regulation energy, which reduces the The BCM6135 provides a high vehicle’s range.
Slide 19: Conclusion
Conclusion ◼ Oversized DC-DC converters and/or batteries can be Sine Amplitude Converter replaced. offers the highest ◼ Independent loads/load islands performance to weight and on 48V can be directly powered volume ratio Continually providing the highest density: ◼ Efficiently transition high power
Slide 20: Thank you
VICOR Thank you ©2025 Vicor