Efficient Power Conversion
Corporate brand
UnclaimedEfficient Power Conversion is a semiconductor company specializing in gallium-nitride transistors and integrated circuits for high-performance power-conversion applications.
Last updated August 31, 2026
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Overview
Efficient Power Conversion, commonly known as EPC, is a United States semiconductor company focused on gallium-nitride power devices. Founded in 2007 by Alex Lidow, Joe Cao and Robert Beach, the company develops enhancement-mode gallium-nitride, or GaN, transistors and integrated circuits intended to improve the efficiency, switching speed, size and power density of electronic systems. Alex Lidow has continued to serve as the company's chief executive officer. The company is headquartered in El Segundo, California. Its principal technology platform is marketed under the eGaN name and includes field-effect transistors and integrated circuits designed for power-conversion architectures. These devices are aimed at applications in which conventional silicon power semiconductors may impose limitations on switching frequency, energy efficiency, thermal performance or physical size. EPC's product focus places it within the power-semiconductor and advanced power-electronics sectors rather than the general-purpose computing semiconductor market. One visible application area for EPC devices is light detection and ranging, or lidar. The company's eGaN devices have been used in lidar systems for self-driving and autonomous vehicles, including systems developed by Velodyne. In these systems, fast and efficient switching components can support the transmission and control of optical pulses used for sensing and ranging. This application has connected EPC's component technology with the development of automotive and industrial autonomy systems. EPC has also expanded its technology into specialized space electronics. In 2020, it entered a joint venture with VPT to establish EPC Space. The venture provides radiation-hardened GaN devices for space applications, extending the company's GaN expertise into an environment where components must tolerate radiation and demanding operating conditions. This initiative broadened EPC's addressable market beyond terrestrial power conversion and automotive sensing. The company continued to introduce products for specialized power and space requirements. In 2023, it introduced the EPC7001, a 40-volt, 4-milliohm radiation-hardened GaN FET. In 2024, it launched the EPC2361, a 100-volt, 1-milliohm GaN FET. EPC stated that the EPC2361 was the smallest device of its type available at the time, with a footprint of 3 by 5 millimeters. These launches illustrate the company's emphasis on combining low electrical resistance, high switching performance and compact packaging. EPC's brand positioning is therefore built around specialized GaN power technology rather than consumer-facing products. Its offerings are component-level products sold into engineering and industrial markets, where design performance, efficiency, miniaturization and application-specific reliability are central purchasing considerations. Publicly available reference material identifies the company as active and documents its semiconductor products, lidar applications, space joint venture and recent product introductions, but does not provide reliable information about ownership, financial performance, public listing or a current corporate website.
History
Efficient Power Conversion was founded in 2007 by Alex Lidow, Joe Cao and Robert Beach. The company was established around the development and commercialization of gallium-nitride power technology, with Lidow continuing as chief executive officer. It is based in El Segundo, California. EPC's principal products are enhancement-mode gallium-nitride FETs and integrated circuits marketed under the eGaN name. These components are designed for power-conversion systems that require fast switching, low losses, high power density and compact form factors. The company operates in the specialized semiconductor segment, supplying components for use by system designers rather than selling finished consumer products under a retail brand. A notable application for EPC's devices has been lidar. Its eGaN FETs and ICs have been used in lidar systems for self-driving and autonomous vehicles, including lidar systems developed by Velodyne. In such systems, semiconductor switching performance contributes to the generation and control of optical pulses used for distance measurement. This application linked EPC's component portfolio to emerging automotive-sensing and autonomy markets. In 2020, EPC expanded into space-qualified electronics through a joint venture with VPT. The resulting business, EPC Space, provides radiation-hardened GaN devices for space applications. Radiation-hardened components are intended to withstand the conditions encountered in space, including exposure to radiation, making this a specialized extension of EPC's existing GaN capabilities. The company subsequently announced additional products for high-performance and radiation-sensitive applications. In 2023, it introduced the EPC7001, a 40V, 4mΩ radiation-hardened GaN FET. In 2024, EPC launched the EPC2361, a 100V, 1mΩ GaN FET. EPC described the latter as the smallest available device of its type at the time, with a 3mm by 5mm footprint. The documented history of Efficient Power Conversion is principally a technology and product-development story: the company was formed to advance GaN power semiconductors, developed a portfolio of eGaN transistors and ICs, found applications in lidar, and extended its reach into radiation-hardened space components through EPC Space. Public reference material does not establish a public listing, ownership structure, financial results, or a confirmed current corporate website.
- 2024
EPC2361 launched
[1]The company launched the 100V, 1mΩ EPC2361 GaN FET and described its 3mm by 5mm footprint as the smallest available at the time.
- 2023
EPC7001 introduced
[1]EPC introduced the 40V, 4mΩ radiation-hardened EPC7001 GaN FET.
- 2020
EPC Space joint venture established
[1]EPC and VPT formed EPC Space to develop and provide radiation-hardened gallium-nitride devices for space applications.
- 2007
Company founded
[1]Alex Lidow, Joe Cao and Robert Beach founded Efficient Power Conversion, with Lidow continuing as chief executive officer.
Products and positioning
A specialist power-semiconductor company focused on compact, efficient and high-speed gallium-nitride devices for demanding power-conversion, lidar and space applications.
Gallium-nitride power transistors
eGaN FETs
EPC's eGaN FETs are enhancement-mode gallium-nitride field-effect transistors designed for efficient, high-speed power switching. They are used in power-conversion architectures and have also been applied in lidar systems, including systems for autonomous and self-driving vehicles.
Gallium-nitride power ICs
eGaN integrated circuits
These integrated circuits extend EPC's gallium-nitride technology beyond discrete transistors into integrated power-management and switching functions. They are intended for system designers seeking compact and efficient solutions in demanding power-electronics applications.
Radiation-hardened GaN FET · 2023
EPC7001
Introduced in 2023, the EPC7001 is a 40V, 4mΩ radiation-hardened gallium-nitride field-effect transistor. Its radiation-hardened design targets space and other environments where electronic components must operate under severe radiation conditions.
GaN FET · 2024
EPC2361
Launched in 2024, the EPC2361 is a 100V, 1mΩ gallium-nitride FET. EPC reported that its 3mm by 5mm footprint was the smallest available at the time, highlighting the company's focus on combining low resistance with component miniaturization.
Brand decisions
2020
Create EPC Space with VPTM&ABackground
EPC sought to apply its gallium-nitride expertise to radiation-hardened electronics for spacecraft and other space systems.
Action taken
EPC entered a joint venture with VPT, forming EPC Space to provide radiation-hardened GaN devices.
Aftermath
The joint venture expanded EPC's documented business scope from terrestrial power electronics and lidar-related applications into space-qualified semiconductor products.
Recent events
Reported
EPC launches ePower power-stage IC series[2]
Efficient Power Conversion announced the launch of its ePower power-stage integrated circuit series, with EPC2152 as the series’ first product.
EPC announces third edition of GaN transistor textbook[3]
Efficient Power Conversion Corp (EPC) announced publication of the third edition of *GaN Transistors for Efficient Power Conversion*, a textbook published by John Wiley and Sons.
Sources4 sources
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