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STMicroelectronics EVLONEMP Evaluation Board is a great power density USB Power Delivery multiport board with a USB Type-A port and a USB Type-C™ port supporting Programmable Power Supply (PPS). The design supports a wide range of input voltages and can deliver 10W (5V @ 2A) on a Type-A port, five fixed PDOs, and two APDOs on a Type-C port. This board is based on the ST-ONEMP, a digital controller embedding Arm® Cortex® M0+ core, an offline programmable controller with synchronous rectification, and USB PD PHY in a single package. Such a system is specifically designed to control ZVS non-complementary active clamp flyback converters to create high power density chargers and adapters with USB Power Delivery interface.
The STMicroelectronics EVLONEMP includes an active clamp flyback controller and its HV startup on the primary side. A microcontroller and all the peripherals required to control the conversion and the USB Power Delivery communication are on the secondary side. The two sides are connected through an embedded galvanically isolated dual communication channel. High switching operations in companion with the MasterGaN power stage allow using small magnetic components and reach very high efficiency.
