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240W USB PD AC/DC Adapter

Overview

This power supply design delivers a robust 240W output, compliant with the USB Power Delivery (PD) 3.2 Extended Power Range (EPR) standard. It caters to diverse power supply requirements and adheres to European regulations mandating the use of USB Type-C universal chargers for various portable electronic devices.

System Benefits:

  • Delivers maximum power per USB specifications (48V/5A), ensuring reliable and consistent power for high-demand devices.
  • Zero voltage switching (ZVS) minimizes switching loss for high efficiency (>94% at 28V, 5A).
  • Enhanced power density reduces size and weight while achieving improved thermal management.

Block Diagram

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4:3 ratio Sheet.194 Sheet.421 Sheet.449 Ground (earth).164 Sheet.165 Sheet.166 Sheet.167 Sheet.168 Resistor - Fixed.196 Ground (earth).197 Sheet.189 Sheet.190 Sheet.191 Sheet.192 Ground.426 Sheet.427 Sheet.428 Sheet.298 SuperGaN FET SuperGaN FET SuperGaN FET Sheet.406 Sheet.375 Sheet.1 Sheet.2 Sheet.3 Sheet.4 WS006 WS006 WS006 Bridge Rectifier Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Capacitor Non-polarized Sheet.29 Sheet.30 Sheet.31 Sheet.32 Ground (earth) Sheet.39 Sheet.40 Sheet.41 Sheet.42 Transformer Inductor Coreless (Air conductor).89 Sheet.55 Sheet.56 Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.65 Sheet.66 Sheet.67 Sheet.68 Sheet.69 Sheet.70 Sheet.71 Sheet.72 Sheet.73 Sheet.74 Connector.231 Connector.232 Connector.233 Sheet.78 Sheet.79 Sheet.80 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 AC Power Source Sheet.93 Alternating Current 90~264VAC 90~264VAC 90~264VAC Connector 1.174 Connector 1.544 Signal Ground.422 Sheet.128 Sheet.129 Sheet.130 Sheet.131 Sheet.132 Photocoupler Photocoupler Photocoupler Diode - LED.170 Sheet.171 Sheet.172 Sheet.173 Sheet.174 Sheet.175 Darlington.651 Sheet.177 Darlington.254 IGBT Insulated Gate Bipolar Transistor 2.179 Sheet.180 Sheet.181 Sheet.182 Sheet.183 Sheet.184 Sheet.197 Sheet.198 Sheet.199 Sheet.200 Sheet.201 Sheet.202 Sheet.203 Sheet.204 Sheet.205 Sheet.206 Capacitor Non-polarized .227 Sheet.228 Sheet.229 Sheet.230 Sheet.231 Ground (earth).232 Sheet.233 Sheet.234 Sheet.235 Sheet.236 Connector 1.237 Transformer Inductor Coreless (Air conductor).239 Sheet.240 Sheet.241 Sheet.242 Sheet.243 Sheet.244 Sheet.245 Sheet.246 Sheet.247 Sheet.248 Signal Ground.260 Sheet.261 Sheet.262 Sheet.263 Sheet.264 Sheet.265 Capacitor Non-polarized .266 Sheet.267 Sheet.268 Sheet.269 Sheet.270 Connector 1.277 Transformer Inductor Coreless (Air conductor) Sheet.279 Sheet.280 Sheet.281 Sheet.282 Sheet.283 Sheet.284 Sheet.285 Sheet.286 Sheet.287 Transformer Inductor Coreless (Air conductor).288 Sheet.289 Sheet.290 Sheet.291 Sheet.292 Sheet.293 Sheet.294 Sheet.295 Sheet.296 Sheet.297 Sheet.299 Connector 1.545 Connector 1.596 Sheet.302 USB-C USB-C USB-C USB-C Sheet.320 Sheet.321 Sheet.322 Sheet.323 Sheet.324 Sheet.325 Sheet.326 Sheet.327 Sheet.328 Sheet.329 Sheet.330 Sheet.331 Sheet.332 Resistor - Fixed.330 Sheet.334 Sheet.335 Sheet.340 Sheet.341 Sheet.344 V- V- V- 5~48VDC Imax 5A 5~48VDC Imax 5A 5~48VDCImax 5A 2 2 2 2 Sheet.353 Sheet.360 Sheet.363 Sheet.364 Sheet.369 Sheet.370 Connector 1.174.371 Sheet.372 Connector 1.174.373 Sheet.376 Sheet.219 Ground (earth).434 Sheet.115 Sheet.116 Sheet.117 Sheet.118 Resistor - Fixed.439 Sheet.377 SuperGaN FET SuperGaN FET SuperGaN FET Sheet.209 Sheet.210 Sheet.211 Sheet.212 Sheet.213 Sheet.214 Sheet.215 Sheet.216 Sheet.217 Sheet.218 Sheet.388 Sheet.401 Sheet.402 Sheet.403 Sheet.404 Connector 1.405 Diode Sheet.408 Sheet.409 Sheet.410 Diode.411 Sheet.412 Sheet.413 Sheet.414 Sheet.415 Sheet.416 Connector 1.174.417 Sheet.420 Ground Sheet.424 Sheet.425 Vbus Vbus Vbus Sheet.430 VIN VIN VIN Sheet.432 Sheet.437 Sheet.438 Connector 1.174.439 Sheet.440 Connector 1.174.443 Connector 1.174.444 Sheet.445 Vertical Wire Bundle 2 2 2 Sheet.448 Sheet.450 Sheet.451 Sheet.452 Sheet.453 PFC Control PFC Control PFC Control VCC VCC VCC GD-M GD-M GD-M GD-S GD-S GD-S Sheet.455 AC/DC Controller AC/DC Controller AC/DC Controller OUTPUT OUTPUT OUTPUT FB FB FB Sheet.456 Ground (earth).434 Sheet.458 Sheet.459 Sheet.460 Sheet.461 Resistor - Fixed.439 SuperGaN FET SuperGaN FET SuperGaN FET Sheet.464 Sheet.465 Sheet.466 Sheet.467 Sheet.468 Sheet.469 Sheet.470 Sheet.471 Sheet.472 Sheet.473 Photocoupler Photocoupler Photocoupler Diode - LED.475 Sheet.476 Sheet.477 Sheet.478 Sheet.479 Sheet.480 Darlington.651 Sheet.482 Darlington.254 IGBT Insulated Gate Bipolar Transistor 2.484 Sheet.485 Sheet.486 Sheet.487 Sheet.488 Sheet.489 Sheet.490 Rectifier Rectifier Rectifier OUT OUT OUT Sheet.491 USB PD 3.2 Protocol USB PD 3.2 Protocol USB PD 3.2 Protocol OPTO OPTO OPTO IS+ IS+ IS+ CC1/CC2 CC1/CC2 CC1/CC2 D- D- D- IS- IS- IS-

SuperGaN FET

GaN Power Discretes

PFC Control

Power Factor Correction (PFC) Controllers

AC/DC Controller

Flyback & Forward Controllers

Rectifier

Synchronous Rectifier Controllers

USB PD 3.2 Protocol

Synchronous Rectifier Controllers

Photocoupler

DC Input Single

Photocoupler

DC Input Single

SuperGaN FET

GaN Power Discretes

SuperGaN FET

GaN Power Discretes

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Videos & Training

This video demonstrates Renesas’ 240W USB Power Delivery (USB PD) AC/DC adapter design, featuring advanced SuperGaN FETs and innovative controllers for high efficiency, compact size, and USB PD 3.2 compliance. The two-stage architecture, PFC and ZVS flyback, ensures optimal power factor correction and minimal switching losses. The design delivers 48V/5A with over 96% efficiency at full load, while normally-off depletion-mode GaN FETs reduce losses, improve thermals, and enable a smaller footprint for next-generation power adapters.

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