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[Open] 2024 Electronic Design Contest Problem A

Overview

The hardware circuit

driver uses an IR2110 bootstrap circuit to drive the MOSFET switch. Without isolation,
a proportional-differential amplifier circuit is used to sample the input and output voltages. A 1.65V voltage bias and a voltage ratio of 1/47
are used. A CC6903-10A is used to sample the input and output
currents, providing four output channels for voltage and current sampling. These outputs connect to a microcontroller ADC. The microcontroller must share a common ground with the board and
requires a 12V DC input. There are 5V and 3.3V outputs to power the microcontroller.

The control scheme

mainly includes a phase-locked loop, voltage loop, current loop, and droop control to achieve parallel current sharing.
See the attached document for details.

The measured waveform

is 30V RMS voltage output.

Design Files

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Update:2026-03-27 18:23:19

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