EPC Launches Scalable DC-DC Demonstration Board for Mild-Hybrid Cars and Battery Power Backup Units
May 2021 — EPC announces the availability of the EPC9137, a 1.5kW, two-phase 48V – 12V bidirectional converter for mild-hybrid cars and battery power backup units, operating with 97% efficiency in a very small footprint. The design of this demonstration board is scalable; that is, two converters can be paralleled to achieve 3kW or three converters can be paralleled to achieve 4.5kW. The board features four EPC2206 100V eGaN® FETs and is controlled by a module that includes the Microchip dsPIC33CK256MP503 16-bit digital controller.
By 2025, one of every 10 vehicles sold worldwide is projected to be a 48V mild hybrid. 48V systems boost fuel efficiency, deliver four times the power without increasing engine size, and reduce carbon dioxide emissions without increasing system costs. These systems will require a 48V – 12V bidirectional converter, with power ranging from 1.5kW to 6kW. The design priorities for these systems are size, cost, and high reliability.
EPC eGaN FETs can operate with 97% efficiency at 250kHz switching frequency, enabling 800W/phase compared to silicon-based solutions, which are limited to 600W/phase due to the limitation on the inductor current at 100 kHz maximum switching frequency. By using GaN FETs, it is possible to reduce the number of phases from five to four for a 3.5KW converter while increasing efficiency. The efficiency of a four-phase GaN converter operating at 250kHz is 1.5% higher than a five-phase silicon MOSFET-based converter operating at 100kHz.
Overall, the DCDC converter is three times faster, greater than 35% smaller and lighter, and offers greater than 1.5% higher efficiency compared to silicon MOSFET solutions. And the overall system cost is less. Additionally, the excellent efficiency and thermal performance of GaN FETs enables air cooling instead of water cooling and the small size of the GaN FETs strongly reduces heat-dissipating aluminum housing for additional system cost saving.
“eGaN® FETs provide the fast switching, small size, and high efficiency needed to further reduce the size and weight of 48V – 12V automotive power system converters. The demonstrated superior reliability of GaN FETs make them ideal for this very demanding application,” said Alex Lidow, CEO of EPC. “The EPC9137 is an ideal example of the capabilities of GaN FETs to increase frequency and efficiency to allow smaller inductance for fewer phases and higher power density.”
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本文由宝丁转载自EPC,原文标题为:EPC Launches Scalable 1.5 kW 48 V/12 V DC-DC Demonstration Board Powered by Gallium Nitride (GaN) FETs for More Efficient, Smaller, Faster, Bidirectional Converters,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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型号- EPC2212,EPC2214,EPC2059,EPC2216,EPC2215,EPC2218,EPC2050,EPC9126,EPC2052,EPC2051,EPC2054,EPC2053,EPC2055,EPC9086,EPC2218A,EPC90153,EPC2102,EPC2101,EPC2104,EPC2103,EPC2106,EPC2105,EPC2107,EPC2065,EPC90151,EPC90152,EPC2100,EPC2067,EPC2221,EPC21701,EPC2066,EPC90150,EPC9097,EPC90145,EPC90142,EPC9098,EPC90143,EPC9099,EPC9092,EPC90148,EPC90149,EPC90146,EPC9094,EPC90147,EPC2219,EPC9091,EPC2619,EPC2036,EPC2035,EPC2038,EPC2037,EPC2014C,EPC9507,EPC2031,EPC2152,EPC9126HC,EPC9063,EPC2204A,EPC9061,EPC2308,EPC2307,EPC9005C,UP1966E,EPC2203,EPC9004C,EPC2204,EPC2207,EPC2206,EPC2044,EPC2012C,EPC9049,EPC2252,EPC9166,EPC9167,EPC9162,EPC9041,EPC9165,EPC7020,EPC9160,EPC9040,EPC2302,EPC2001C,EPC2304,EPC2306,EPC2305,EPC8002,EPC9177,EPC9167HC,EPC9179,EPC9173,EPC9174,EPC9055,EPC9171,EPC9050,EPC9172,EPC7007,EPC2034C,EPC9148,EPC2071,EPC23101,EPC23102,EPC23103,EPC23104,EPC9144,EPC90140,EPC2111,EPC7004,EPC7003,EPC90132,EPC9022,EPC90137,EPC90138,EPC90135,EPC7019,EPC7018,EPC9038,EPC9039,EPC21603,EPC9156,EPC9157,EPC9036,EPC2088,EPC7014,EPC21601,EPC9037,EPC90122,EPC90123,EPC9153,EPC90120,EPC9154,EPC90121,EPC90124,EPC9150,EPC90128
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