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【2023 Electronic Competition】Power supply electronic competition questions

Overview

The system block diagram of the BUCK-BOOST main power board
digital synchronous rectification BUCK-BOOST converter is shown in Figure 1.
1. All output currents are not less than 500mA;
2. Input voltage: 12-48V;
3. Output voltage: 0-48V ;
4. Output current: rated current 2A, maximum current: 4A;
5. Two buttons control the step increase or decrease of the output voltage respectively (step voltage 0.1V);
6. Power supply efficiency is not less than 85%;
7. With circuit protection Function (overvoltage protection; overcurrent protection) and operation, fault and other status indications;
8. The output current and current are displayed by the OLED screen to 2 decimal places;
9. Power supply ripple: All measured voltage ripples are required Less than 50mV, 2 points will be deducted for every 10mV increase;
10. The output voltage value can be saved, and the output voltage value can be adjusted to the value specified by the judges. When the power is turned off and on again, the voltage value remains unchanged.

Design Files

Picture 1.png

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