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关于“技术讨论”类别
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0
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21
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October 26, 2025
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Question: Does exposing the flyback MOSFET drain trace and adding solder to thicken it significantly affect radiated EMI?
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6
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7
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June 12, 2026
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Hey guys, I built a single-port Type-C fast charging module based on the SW3538 chip. The VDD pin works fine after powering on, but plugged-in devices aren't recognized and it won't charge.
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18
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121
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May 12, 2026
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Operational Amplifier (Op-Amp) Beginner's Guide: From Principles to Practice
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0
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138
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April 28, 2026
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Getting Started with Raspberry Pi GPIO: From Beginner to Practice
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0
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30
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April 27, 2026
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Let's discuss: Are you still choosing STM32 for small batch projects now, or has everyone switched to domestic alternatives?
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5
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104
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April 21, 2026
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DC-DC Buck Circuit SW Node Ringing Too Severe, RC Snubber Circuit Still Can't Suppress It!
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5
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72
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April 21, 2026
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How to convert a triangle wave into a square wave and invert it using a comparator with hysteresis?
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2
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40
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April 21, 2026
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Which MCU is suitable for capacitive proximity sensing?
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4
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57
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April 7, 2026
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Some issues in BUCK-BOOST circuit design
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7
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122
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April 3, 2026
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Differential op-amp circuit: Do you know what this 1V does?
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2
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47
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March 27, 2026
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STM32 ADC readings from AD8307 output voltage are inaccurate, but measurements of the STM32 board's own output voltage are accurate
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4
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56
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March 21, 2026
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Why can't I publish messages in MQTTX after reconnecting? I've subscribed to a topic and successfully connected, but no messages are being sent or recorded.
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5
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61
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March 18, 2026
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Taming Control Systems: A Beginner's Complete Guide to Poles and Zeros
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2
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52
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March 17, 2026
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Beginner learning to design LDO buck circuit, unsure if the design is correct and reliable, seeking advice from experts
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13
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195
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March 17, 2026
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How to choose the appropriate inductance value?
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4
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68
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March 16, 2026
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Digital Power Supply Project - Questions about PID Code
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2
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45
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March 16, 2026
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Questions about using the UCC21520 gate driver—STM32G474-based adjustable DCDC power supply (Buck-Boost)
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5
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75
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March 11, 2026
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How to Customize the Boot Screen for Raspberry Pi 5
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0
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23
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March 10, 2026
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Understanding ADC from Scratch: A Complete Guide to Analog-to-Digital Converter Core Specifications and Performance Terminology
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0
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36
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March 5, 2026
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Keystroke Hardware RC Debounce Circuit Value and Charging/Discharging Time Calculation
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1
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73
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January 29, 2026
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谐振电容（MKP薄膜电容或者MLCC电容）在大功率LLC电路中可以串联使用嘛?
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4
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95
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December 25, 2025
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PCB中倒F型天线为什么其中一端接地，这样子不会短路吗？
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7
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123
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December 24, 2025
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Same gain, voltage is 20lg, but power is 10lg! Why?
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0
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59
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December 12, 2025
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STM32F103C8T6 USB CDC Disconnecting After Wakeup from Stop Mode at 72MHz (HSE 8MHz) — Need Help
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3
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72
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December 7, 2025
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Guide to Principles and Parameter Calculations for Quasi-Resonant Flyback Switch-Mode Power Supplies, QR Flyback Transformer Parameter Calculation Formulas
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1
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122
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December 5, 2025
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What is the relationship between the resonant frequency and the cutoff frequency of an LC low-pass filter?
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4
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82
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November 30, 2025
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Simple Discrete Operational Amplifier Circuit Diagram
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3
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79
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November 26, 2025
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RC滤波电路：从原理到计算
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0
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436
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November 20, 2025
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Detailed Explanation of Capacitor Charge and Discharge Time Calculation: RC Circuit Principles and Engineering Applications
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0
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114
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November 19, 2025
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