300 W Ultra High Density Power Density Adapter
@500kHz
AC-DC Power System Solutions
UHD 300W AC-DC Parameters Highlights & Key points Input / Output
• Input voltage range 90 – 265 V AC
• Output voltage 19 V
• Output current: 16 A
• Peak power: up to 340 W Dimensions:
• Size: 160 x 56 x 18 mm
• Volume: 9.84 inch3 Power density:
• Up to 34 W/inch3
2
Used controllers:
• PFC stage: NCP1616
• LLC stage: NCP13992
• GaN HB Driver: NCP51820
• SR: NCP4306 Used GaN device:
• GaN Systems GS66504B , 650 V, 100 mΩ
Highlights:
• Only 2-layer PCB design
• High versatility
• PFC with SR
• Semi-bridgeless line rectifier option
UHD 300W AC-DC: Bottom Side View
UHD 300W AC-DC: Bottom Side View: Assembling principle
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1. 2. 3. 4.
5.
6.
Fully assembled demo-board on the next slide
UHD 300W AC-DC: Fully Assembled Board & Dimensions
56 mm 18 mm
80 82 84 86 88 90 92 94 96
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350
Efficiency [%]
Output power [W]
TOTAL EFFICIENCY @ 115 V AC (PFC SR EN & STANDARD BRIDGE RECTIFIER) TOTAL EFFICIENCY @ 230 V AC (PFC SR EN & STANDARD BRIDGE RECTIFIER)
UHD 300W: total efficiency with active PFC SR & standard bridge rectifier
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LLC STAGE PRIMARY SIDE WAVEFORM @ 340 W load (NORMAL MODE)
CH1 3 V/div LOW SIDE GaN DEVICE DRIVING PULSE VGS(t)
CH2 N/A N/A
CH3 50
V/div
HALF-BRIDGE NODE VOLTAGE (t)
CH4 1 A/div RESONANT TANK CURRENT ITANK(t)
97.6
97.1
96.9 97.1 97.5 97.4 97.3 97.2 97.1 97.0 96.9
96.7 96.6 96.4
96.1 95.9 95.6 97.2 97.0
97.0 97.2 97.6 97.5 97.5 97.4 97.4
97.2 97.1 96.9 96.8
96.5 96.3
96.0 95.8 99.0 98.6
98.3 98.4 98.5 98.5 98.5 98.4 98.5 98.5 98.5 98.5 98.5 98.4 98.4 98.4 98.3
99.3
98.5
98.5 98.6 98.5 98.5 98.5 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.5 98.5 98.5
90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340
Efficiency [%]
Output power [W]
PFC 1616 @ 115 V AC (SR DIS) PFC 1616 @ 115 V AC (SR EN) PFC 1616 @ 230 V AC (SR DIS) PFC 1616 @ 230 V AC (SR EN)
Stand alone PFC Stage efficiency
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UHD 300W: Efficiency & consumption overall summary
100 kHz AIO EVB 500 kHz Adapter 100 kHz AIO EVB 500 kHz Adapter
NO-LOAD < 115mW <130 mW* < 125mW <130 mW* <150mW
Load 250 mW 466 mW < 490 mW* 475 mW < 500 mW* <500mW Load 500mW 720 mW < 800 mW* 823 mW < 850 mW* <1000mW
Load 20% 50 90,2 90,6 91,5 92,0 >90%
Load 25% 62,5 91,8 92,0 93,0 93,3 -
Load 50% 125 93,4 93,7 94,4 94,7 >94%
Load 75% 187,5 93,1 93,7 94,6 95,1 -
Load 100% 250 92,6 93,2 94,5 95,0 >91%
92,7 93,2 94,1 94,5 -
Required
@ 230VAC LOAD
4 point AVG
* preliminary information, may be changed.
Consumption [mW] or efficiency [%]
@120VAC @230VAC
