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Do I need a buck converter for an STM32 self-balancing car? What voltage to what? Battery output is 7.4V; I can't solder—how do I handle the buck module? Thanks for the help, guys
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4
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24
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November 1, 2026
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Help, why does vl53lxx-v2 keep showing 5633 and no longer change?
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5
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45
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October 25, 2026
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UCC21520 high-side drive waveform dip issue with SPWM input
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8
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62
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October 22, 2026
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Is this design okay? Can I just draw the PCB now?
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4
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139
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October 17, 2026
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What causes UC3842 to repeatedly restart?
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4
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112
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September 22, 2026
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The inductance and leakage inductance of the transformer I wound are both nearly twice those wound by the blogger — is that normal? Do I need to grind the air gap?
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6
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136
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September 14, 2026
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New S32K144 cannot be programmed
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3
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147
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September 4, 2026
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Questions about studying oscillator circuits and ultrasonic atomizer driver circuits
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6
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150
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September 3, 2026
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Follow-up on yesterday’s S32K144 reset pin issue
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8
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230
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August 14, 2026
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Older software developer wants to switch to hardware
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5
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214
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August 12, 2026
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S32K144 reset pin issue
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9
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253
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August 5, 2026
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How are the overcurrent protection of digital power supplies and the hardware of constant-current circuits implemented?
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6
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238
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July 31, 2026
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Why do MPPT products usually have two inductors?
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4
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183
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July 31, 2026
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Experts, question about using this UCC21520 half-bridge module to build a Boost circuit
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22
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448
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July 30, 2026
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In a bidirectional BUCK-BOOST, the MCU auxiliary power supply is contaminating the current sampling—how can I eliminate its impact on power calculations?
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8
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252
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July 30, 2026
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Just getting started with electronics, any recommended books or websites?
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5
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462
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July 24, 2026
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What is the purpose of the TVS on the COMP pin of a flyback power supply?
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2
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141
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July 23, 2026
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We don't lack onlookers, we lack people to build rock-solid AI systems with us
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0
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60
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June 29, 2026
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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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272
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June 12, 2026
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Fans, water pumps, etc. not working; don't know where the problem is
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10
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365
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June 12, 2026
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Has anyone done PMBus communication using the STM32 HAL library, with one STM32 as master and another as slave?
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6
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346
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May 30, 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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570
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May 12, 2026
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Hey experts, does a common mode choke perform better with more turns?
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5
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357
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May 10, 2026
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LCD1602 I2C module cannot display characters
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23
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691
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April 28, 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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420
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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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331
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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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199
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April 21, 2026
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Why does I2C OLDE setting at 3MHz work normally?
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6
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296
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April 14, 2026
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Which MCU is suitable for capacitive proximity sensing?
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4
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241
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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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309
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April 3, 2026
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