The world's first ARM core aerospace grade chip, SAMRH71F20-EK evaluation kit (schematic, etc.)

The Microchip SAMRH71F20-EK Evaluation Kit is a hardware platform for evaluating the SAMRH71F20 microcontroller.
Powered by Microchip's MPLAB® HARMONY integrated development platform and other commercially available development environments, the evaluation kit provides easy access to the Microchip RadHard SAMRH71F20 microcontroller and its aerospace-specific feature set and shows how to integrate the device into a custom design.

Schematic PCB

2.4GHz ZigBee IEEE 802.15.4 based radio transceiver solution (RFMD RF6505/6575/6555)

The reference design demonstrates a complete 2.4GHz ZigBee IEEE 802.15.4 based compliant radio transceiver solutions and conform to FCC CFR47 part 15. The wireless SoC reference design series (RFMDs RF6505/6575/6555) are developed by the partnership between RFMD and Corporation. The RFMD device increases transmit power and sensitivity.

Schematic PCB

AT86RF231 PCB Antenna Diversity Reference Design

This reference design demonstrates a full-function network node with the AT86RF231 radio transceiver, which is capable of hosting a MAC layer implementation. Two ceramic chip antennas increase the link budget in a typical indoor scenario with multi-path fading effects.

Schematic PCB

Reference design for driving LED based on SMART ATSAMR21 microcontroller

The ATSAMR21-LED-DRIVER is a reference platform that uses the SMART ATSAMR21 microcontroller (MCU) to drive LEDs in a constant current DC-DC step-down topology. The ATSAMR21 is an IEEE 802.15.4 compliant SOC that incorporates an ARM® Cortex® M0+ based 32-bit MCU and a 2.4GHz RF transceiver.

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Schematic PCB

Charging and discharging, backup battery reference design based on AVRBC100 two cells/battery packs

A reference design that demonstrates charging and discharging of two batteries/battery packs with a programmable charge voltage up to 40V. It also demonstrates how to design a battery back-up, also known as an uninteruptable power supply, where the charged batteries are used to power the system if the external voltage supply is lost.

Schematic PCB

750W AC-DC Reference Design

Microchip’s 750W AC-DC Reference Design demonstrates a semi-bridgeless PFC topology followed by a peak current controlled zero-voltage switching full-bridge (ZVS FB) converter with digital slope compensation to achieve very high conversion efficiencies. This power supply can be firmware updated (including the compensator algorithm) with zero down time to the system it is powering while the

Schematic PCB