Bidirectional Buck/Boost Converter Design
Thought
Work done
- U1: STM32F103C8T6 MCU added
- J1: ARM JTAG SWD 10Pin 0.05" header placed
- U2: IR2110SPBF gate driver added
- U3: MCP1700T-3302E/TT 3.3 V regulator added
- System architecture Mermaid diagram drafted and stored in project properties
Remaining tasks
-
Supporting Components and Power
- Add power MOSFETs sized for 10 A
- Place power inductor, bulk electrolytic/polymer and ceramic capacitors
- Add decoupling capacitors for MCU, regulator, and gate drivers
- Include bootstrap diodes and resistors for gate drivers
-
Connectivity
- Place 3-pin UART header and wire to MCU USART TX/RX
- Wire MCU clock, decoupling, SWDIO/SWCLK pads
- Connect PWM outputs to gate driver inputs
- Tie gate driver outputs to MOSFET gates and power stage
- Route current shunt amplifier and voltage divider signals to MCU ADC
- Add TVS diodes, input fuse, and reverse-polarity protection
-
Schematic review
- Verify all functional blocks are complete
- Check voltage ratings, resistor power ratings, MOSFET specs
- Confirm ground and power nets are properly named and tied
Success criteria
Not yet met: the power stage, sensing/protection circuits, full interconnections, and net wiring are still missing.
Next step
Proceed to the Supporting Components and Power stage: select and add the four bidirectional MOSFETs, inductor, bulk and decoupling capacitors, and bootstrap components to implement the 10 A power stage.
Flux stopped
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