Device
3KW Totem-Pole PFC based on SiC device
The reference design is 3kW continuous mode totem-pole PFC, withinput 176Vac-264Vac and rated output 400Vdc/7.5A. This solution notonly discards the rectifier bridge and diode in the traditional PFCcircuit, but also adopts the 3rd generation semiconductor devicessuch as SiC/GaN, to reduce or eliminate the loss and straight-throughproblems caused by the reverse recovery of the traditional Mosfetbody diode in the current continuous mode, and the peak efficiencyof the solution reaches 99.1%.
1.8KW high frequency and power density DC-DC converter
The reference design is a high frequency 1.8kW DC/DC converterbased on SiC device with input voltage range 300-400Vdc, ratedoutput 12V/50A. Synchronous LLC topology and main controllerFAN7688 used selected, with peak current control, cycle-by-cyclecurrent limit, and output OvP & short circuit protections. Powerdensity reaches 190W/inch^3。
3KW high efficiency on board DCDC
This reference design proposal is a 3KW load DC/DC system with a voltage range of 350Vdc~700Vdc, a rated output of 27.5V, and a rated output current of 110A (peak 130A). The main circuit adopts a phase-shifting full bridge circuit based on SiC MOSFET, and the output adopts synchronous rectification. The main control core adopts a dedicated phase-shifting full bridge synchronous control core, and the design is simple and reliable.
This reference design is a 30KW wide range DC/DC converter with input range 400~950Vdc, rated output 110V/273A (output range 90V~130V).
The reference design is a 2.5KW on board DC/DC converter with inputvoltage range 200~450Vdc, rated output 12.5V/200A. The maintopology is Boost + full bridge LLC + peak current control synchronousrectifier output.
The reference design is a 6.6kW OBC solution with input voltagerange 176-264Vac, rated output 240-420Vdc/16A. The input topologyis interleaved parallel PFC, DC/DC is full-bridge LLC, and the output isSiC diode bridge rectifier. For the short-circuit protection issue of LLCa more reliable two-level overcurrent protection is used to improvethe system reliability.
This reference design adopts a fully SiC design, which supports bidirectional energy flow; Compatible with single-phase and three-phase AC transmission; When single-phase transmission occurs, the maximum output power is 6.6KW; When transmitting three-phase power, the maximum output power is 11KW. PFC and LLC are each controlled by a DSP, and the PFC line voltage is adjusted in real-time based on the output voltage to optimize LLC operation and improve system efficiency. When operating in reverse, the output is single-phase 220V AC, and the maximum output power in reverse is 6.6KW.
This reference design is a solution for logistic vehicle charger withover 700V bus input, which outputs a wide voltage range of 42-60 Vand maximum current 300 A. Phase shift full bridge topology wasdesigned to realize ZVS operation for the main switching MOSFETs.and current doubling rectification reduce the output rectifier devicescurrent stress and also the inductor volume.
This solution is 50kW board-level motor driver based on WolfspeedSiC device, which is used to drive the ROV propulsion motor. Fulldigital control and uses the SiC drive core with Miller clamp and shortcircuit protection developed by APL, which greatly improve thesystem reliability
200KW motor drive base on discrete SiC device
This reference solution is based on Wolfspeed discrete SiC devices in multiple parallel to reach up to 200KW power. DSP digital controls the permanent magnet synchronous motor, and APL self-developed high power SiC drive core directly drives the six parallel SiC devices.The system is designed with a independent drive board to improve the driver imbalance problem. SiC devices improves the system efficiency and increases the range of electric vehicles by 10%
This reference design is a solution for logistic vehicle charger withover 700V bus input, which outputs a wide voltage range of 42-60 Vand maximum current 300 A. Phase shift full bridge topology wasdesigned to realize ZVS operation for the main switching MOSFETs.and current doubling rectification reduce the output rectifier devicescurrent stress and also the inductor volume.
Single-channel SiC Mosfet Driver Core with Active Miller Clamp
This product is a compact, low-cost single-channel driver coredesigned by APL for the third generation SiC devices. The drive coreincludes isolated DC/DC power supply, and meets the requirementsof reinforced insulation. lt provides Active Miller clamp, UVLO, shortcircuit protection, overtemperature protection. With the maximumcurrent of 6A, it supports the driving power up to 1.5W with thenegative voltage output, provides higher drive reliability for the 3rdgeneration SiC devices
official account