Vicor Corporation · NASDAQ:VICR
Vicor — Technical Presentation (2023)
20 slides from Vicor's technical presentation, 2023
Slide 1: Reducing range anxiety by reducing harness weight using power modules
Reducing range anxiety by reducing harness weight using power modules YK Choi – Sr. FAE Automotive APAC ©2023 Vicor 1
Slide 2: The challenge: Wire harness weight and inefficiency underestimated
The challenge: Wire harness weight and inefficiency underestimated n The wire harness is one of the three heaviest subsystems in today’s vehicles n 2,000 copper wires totaling 1 mile in length n 150lbs in highly contented vehicles “We didn’t know that our wiring harness for Mach-E was 1.6 kilometer
Slide 3: BMW 7 series G12 – complexity of wiring routing
BMW 7 series G12 – complexity of wiring routing n 12V power harness length: 5m n 12V power net : 27mm2 or 4AWG n Several 1kW loads in engine compartment n 12V @ 80A ©2023 Vicor 3
Slide 4: Power delivery on typical 12V architecture
Power delivery on typical 12V architecture 40.44W 950W load Power harness 5m (16ft) length 79A rating 4AWG – 2kg (4.1lbs) Benefits: Drawbacks: § Known power § Weight architecture § Routing complexity, high current § Easy implementation connection and fuse § Wire commodity cost uncertain § Wire harne
Slide 5: Power delivery with 48V architecture: 85% weight reduction!
Power delivery with 48V architecture: 85% weight reduction! 5.78W 950W load Power harness 5m (16ft) length 19A rating 10AWG – 0.24kg (0.48lbs) Benefits: Drawbacks: § 85% weight wire § New vehicle power delivery harness weight over architecture 12V system § Li-Ion Battery complexity and cost P =…
Slide 6: 48V power wiring harness system design advantage
48V power wiring harness system design advantage Power dissipation and weight: Wiring materials – copper vs. aluminum Example: all wires ≥30A @ 12V show a potential of reducing: 600W @ 12V 600W @ 48V Load current 50A 50A 12,5A 12,5A n Power dissipation by 5W to 10W Material of wires copper aluminum
Slide 7: Doing things differently with the right technology?
Doing things differently with the right technology? The right technology is needed to enable an increase of the overall system efficiency with optimized Power Delivery Network while beneficiating wire harness weight reduction. ©2023 Vicor 7
Slide 8: Enabling technology to bridge the voltages
Enabling technology to bridge the voltages Highly integrated DC-DC converters SAC (Sine Amplitude Converter) topology and innovative controller designs and systems § Extended variety of input and output voltages available § Isolation, regulation, conversion and transformation integrated in different
Slide 9: Sine amplitude converter – what is it?
Sine amplitude converter – what is it? n Sine Amplitude Converter topology: – Zero-voltage switching – Zero-current switching n Fixed-ratio conversion: – Divide/multiply the voltage/current n Extremely fast transient current capability n Ideal transformer behavior K factor 1/16 1/4 1/1 4/1 VPRI 800
Slide 10: Fixed ratio converter – fast transient response
Fixed ratio converter – fast transient response § High frequency switching Low impedance path § Smaller magnetic components VIN § Smaller path lengths VOUT for turns § Package has very low parasitic inductance on input/output connections IOUT § Response is flat as a function of ROUT from DC to over
Slide 11: Fast transient response, low impedance and bidirectional operation enables – Battery Virtualization
Fast transient response, low impedance and bidirectional operation enables – Battery Virtualization Virtualize a 48V battery to enable 48V load Virtualize a 48V Battery to enable 48V loads in a compatibility on a 12V vehicle architecture BEV with isolated SAC Scalability of the vehicle Power Deliver
Slide 12: Product solution: NBM2317 and NBM3523
Product solution: NBM2317 and NBM3523 n Input/output range: 38V - 60VDC / 9.5V - 15VDC n Output Current (step down): 160A – 2kW n Fixed ratio (k = 1/4) n Peak efficiency: 97.9% n Full power bidirectional n Input/output range: 38V - 60VDC / 9.5V – 15VDC n Output current (step down): 80A – 1kW n Fixed
Slide 13: SAC technology with 12V architecture: 85% weight reduction
SAC technology with 12V architecture: 85% weight reduction SAC SAC 950W load Power harness length 5m (16ft) 79A rating 10AWG – 0.24kg (0.48lbs) Benefits: Drawbacks: § Minimum architecture change § Not taking full advantage of § Wire harness routing higher bus voltage at the load § 85% wire weight re
Slide 14: SAC enabling 48V battery virtualization: 85% weight reduction and efficiency
SAC enabling 48V battery virtualization: 85% weight reduction and efficiency SAC Power harness length 5m (16ft) 10AWG – 0.24kg (0.48lbs) Benefits: Drawbacks: § PDN optimization § 48V load § Overall system weight reduction § Cost § Scalability § System power loss minimized ©2023 Vicor 14
Slide 15: Enabling up to 85% wire harness weight reduction on a BEV architecture
Enabling up to 85% wire harness weight reduction on a BEV architecture Standard BEV architecture DC-DC 5m (16ft) power harness length 3AWG – 4kg Optimized BEV architecture SAC + regulation SAC 5m (16ft) power harness length 10AWG – 240g ©2023 Vicor 15
Slide 16: Enabling weight reduction on a BEV architecture… further
Enabling weight reduction on a BEV architecture… further Consolidation of power supply systems in a distributed 48V: n 12V wiring harness reduced to a minimum n Leverage 48V and HV for high power loads and power distribution n Fewer LV battery storage (12V/48V) ©2023 Vicor 16
Slide 17: Additional application possibilities
Additional application possibilities Enable 48V load compatibility on a 12V vehicle Commercial vehicle applications power architecture (15 – 20 meters wire harness) (ICE for instance with 48V active suspension) ©2021 Vicor 17
Slide 18: Conclusion – what can Vicor technology enable
Conclusion – what can Vicor technology enable n Increase the bus voltage to 48V enables up to 85% weight reduction on the power distribution wiring harness. n Better thermal management and wiring harness routing. n Reduction of system complexity and overall cost. n Increase electrical efficiency fro
Slide 19: YK (Yeon Kyu) Choi
YK (Yeon Kyu) Choi [email protected] YK is the Automotive Sr. Field Application Engineer, helping power engineers architect new automotive power delivery systems. He has a MSc in Power Electronics from Konkuk University. Scan and download the presentation ©2023 Vicor 19
Slide 20: Thank you
Thank you References: BMW AG – Ottmar Sirch: Future vehicle Power supply with 48V Nov 2019 Scan and download the presentation ©2023 Vicor 20