At the Speed of GaN (gallium nitride)
![27_Pdf_File_Type_Adobe_logo_logos-512[1]](https://navitassemi.com/wp-content/uploads/2020/12/27_Pdf_File_Type_Adobe_logo_logos-5121.png)
![allgan-graphic](https://navitassemi.com/wp-content/uploads/2020/11/allgan-graphic.jpg)
![navitasmasterlogoblue](https://navitassemi.com/wp-content/uploads/2019/02/navitasmasterlogoblue.png)
![power-accelerated image](https://navitassemi.com/wp-content/uploads/2020/11/power-accelerated-image.png)
![cpes logo](https://navitassemi.com/wp-content/uploads/2021/01/cpes-logo.jpg)
At the Speed of GaN
Center for Power Electronics Systems
Annual Meeting April 2017
Gene Sheridan, CEO
[email protected]
Linear vs. Switching Regulator Adoption
![linear vs switching chart 1](https://navitassemi.com/wp-content/uploads/2021/01/linear-vs-switching-chart-1.png)
Power Transistors – 10x Disruptions
![high voltage power transistors](https://navitassemi.com/wp-content/uploads/2021/01/high-voltage-power-transistors.png)
The Power of GaN Power ICs
… Unequaled Speed & Efficiency
![unequaled speed and efficiency](https://navitassemi.com/wp-content/uploads/2021/01/unequaled-speed-and-efficiency.png)
650V Half-Bridge AllGaN™ Power IC
![chip by penny comparison](https://navitassemi.com/wp-content/uploads/2021/01/chip-by-penny-comparison.png)
• Proprietary AllGaN™ technology
• Monolithic integration of 650V eMode GaN FET, driver, logic
• Internal level-shift & bootstrap circuits
• Ground-referenced, digital input
• High dV/dt immunity (200 V/ns)
• Zero inductance turn-off loops
• ESD, UVLO, shoot-through protection
• Flexible topologies: Active Clamp Flyback, Half-Bridge, LLC, etc.
![650v diagram](https://navitassemi.com/wp-content/uploads/2021/01/650v-diagram.png)
Discrete Half-Bridge Drive – 5 Key Losses
![half bridge gate driver & level shifter](https://navitassemi.com/wp-content/uploads/2021/01/half-bridge-gate-driver-level-shifter.png)
Eliminating Gate Loop Losses
External drivers
• Just 1-2 nH of gate loop inductance can cause unintended turn-on
• Gate resistors reduce spikes but create additional losses
Integrated GaN drivers (iDrive™)
• Eliminate the problem
• Negligible turn-off losses
![gate loop losses multi chart](https://navitassemi.com/wp-content/uploads/2021/02/gate-loop-losses-multi-chart.png)
![gate loop 3 graphs](https://navitassemi.com/wp-content/uploads/2021/02/gate-loop-3-graphs.png)
Eliminating Bootstrap Losses
![bootstrap losses graph](https://navitassemi.com/wp-content/uploads/2021/02/bootstrap-losses-graph.png)
Eliminating Half-Bridge Losses
![half-bridge-losses](https://navitassemi.com/wp-content/uploads/2021/02/half-bridge-losses.png)
Eliminating Footprints and Complexity
![elimination footprints and complexity](https://navitassemi.com/wp-content/uploads/2021/02/elimination-footprints-and-complexity.png)
High-Frequency Half-Bridge Integration
![non-integratable tech](https://navitassemi.com/wp-content/uploads/2021/02/non-integratable-tech.png)
Half-Bridge GaN Power IC at 2 MHz
![power at 2mhz](https://navitassemi.com/wp-content/uploads/2021/02/power-at-2mhz.png)
Frequency Drives Transformer Size & Cost (65W)
![frequency vs volume chart](https://navitassemi.com/wp-content/uploads/2021/02/frequency-vs-volume-chart.png)
Frequency Drives EMI Filter Size & Cost
Conductive frequency range: 150 kHz – 30 MHz
![frequency drive EMI](https://navitassemi.com/wp-content/uploads/2021/02/frequency-drive-EMI.png)
Magnetics’ Frequencies – 10x Every 10 years
![magentics frequencies 10x](https://navitassemi.com/wp-content/uploads/2021/02/magentics-frequencies-10x.png)
GaN Power ICs enable Hi-Density Adapters
3x Higher Density with 50% Energy Savings
![hi-density adapters](https://navitassemi.com/wp-content/uploads/2021/02/hi-density-adapters.png)
AllGaN: 150W, PFC+LLC, 300 kHz → Over 20W/in3
![pfc+llc](https://navitassemi.com/wp-content/uploads/2021/02/pfcllc.png)
AllGaN: 150W, PFC+LLC, >1Mhz → 35W/in3
![pfc+llc 2](https://navitassemi.com/wp-content/uploads/2021/02/pfcllc-2.png)
Fast Chargers … going “GaN Fast”
3x Fast Charging with 50% Energy Savings
![3x faster charging](https://navitassemi.com/wp-content/uploads/2021/02/3x-faster-charging.png)
AllGaN: 45W, ACF, 300kHz → 2-3x Faster Charging
![2-3 faster charging](https://navitassemi.com/wp-content/uploads/2021/02/2-3-faster-charging.png)
AllGaN: 25W, ACF, >1MHz → 4-5x Faster Charging
![4-5x faster charging](https://navitassemi.com/wp-content/uploads/2021/02/4-5x-faster-charging.png)
Time for Another Disruption…
![another disruption](https://navitassemi.com/wp-content/uploads/2021/02/another-disruption.png)
High-Frequency Resonant Market Adoption
![resonant market adoption](https://navitassemi.com/wp-content/uploads/2021/02/resonant-market-adoption.png)