# PowerDistribution ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** jinyao - **Created:** 3/13/2026 - **Last Updated:** 4/5/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD CN1["CN1 24V input"] -->|VIN24| K1["K1 relay coil"] CN1 -->|VIN24| U1["U1 MP1584 buck"] U1 -->|5V| ESP1["ESP1 ESP32-S3 dev board"] ESP1 -->|GPIO4 RELAY_DRV| R4["R4 gate resistor"] R4 --> Q1["Q1 AO3400 MOSFET"] Q1 -->|RELAY_COIL_LOW| K1 K1 --> D1["D1 flyback diode"] SW1["SW1 E-stop switch"] -->|ESTOP_IN_RAW| Debounce["R2 C1 debounce"] Debounce -->|ESTOP_IN| ESP1 K1 -->|COM NO NC| J1["J1 to PDB"] ``` - **Forks:** 1 - **Copies:** 2 ## Key Components ### D1 — [1N4001 - 8363396](https://www.flux.ai/kicad-part-library/1n4001-8363396~sb.md) - Part Type: Diode THT - Role: Buck Diode - Manufacturer Name: Texas Instruments Inc. - Role Details: Rectifier diode for LM2596 buck switch node. - Datasheet URL: http://www.vishay.com/docs/88503/1n4001.pdf - Package: DO-41 - Package or Case Code: D_DO-41_SOD81_P10.16mm_Horizontal - Manufacturer Part Number: 1N4001 **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SS14 - Package: SMA - Role: Flyback Diode - Role Details: Across relay coil; cathode to RELAY_COIL+, anode to RELAY_COIL-. - Part Type: Diode - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Manufacturer Name: Slkor(SLKORMICRO Elec.) **Pins:** - Anode [pin A] - Cathode [pin C] ### D3 — [MBRF1045](https://www.flux.ai/lcsc/mbrf1045~9dge.md) - LCSC Part Number: C260306 - Manufacturer Part Number: MBRF1045 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010233_SMC-Sangdest-Microelectronicstronic--Nanjing-MBRF1045_C260306.pdf - Product Info Url: https://lcsc.com/product-detail/Others_Sangdest-Microelectronicstronic-Nanjing-MBRF1045_C260306.html - Part Type: Schottky Barrier Diodes (SBD) - Manufacturer Name: SMC(桑德斯) - JLCPCB Part Class: Extended Part - Package or Case Code: ITO-220AC_L10.2-W4.5-P5.10 **Pins:** - A [pin 2] - C [pin 1] ### ESP1 — [Seeed Studio XIAO ESP32S3 Sense](https://www.flux.ai/seeedstudio/seeed-studio-xiao-esp32s3-sense~as.md) - Product Info Url: https://wiki.seeedstudio.com/xiao_esp32s3_getting_started/ - Manufacturer Part Number: 113991115 - Part Type: Microcontroller - Purchase Url: https://www.seeedstudio.com/XIAO-ESP32S3-Sense-p-5639.html - Manufacturer Name: Seeed Studio - Datasheet URL: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/res/esp32-s3_datasheet.pdf **Pins:** - 3V3 [pin 14] - 5V [pin 16] - D10_A10_MOSI_GPIO9_TOUCH9 [pin 13] - D7_RX_GPIO44 [pin 10] - D8_A8_SCK_GPIO7_TOUCH7 [pin 11] - D9_A9_MISO_GPIO8_TOUCH8 [pin 12] - GND [pin 15] - GPIO43_TX_D6 [pin 7] - TOUCH1_GPIO1_A0_D0 [pin 1] - TOUCH2_GPIO2_A1_D1 - TOUCH3_GPIO3_A2_D2 [pin 3] - TOUCH4_GPIO4_A3_D3 [pin 4] - TOUCH5_GPIO5_SDA_A4_D4 [pin 5] - TOUCH6_GPIO6_SCL_A5_D5 [pin 6] ### K1 — [Relay-12VDC-SL-C](https://www.flux.ai/deadzerok/relay-12vdc-sl-c~zh.md) - Part Type: Relay - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SRD-12VDC-SL-C - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf **Pins:** - Coil-1 [pin COIL1] - Coil-2 [pin COIL2] - Com-3 [pin COM] - NC [pin NC] - NO [pin NO] ### U1 — [LM2596T-3.3/NOPB](https://www.flux.ai/jecstronic/lm2596t-3p3nopb~3yw.md) - Manufacturer Part Number: LM2596T-3.3/NOPB - Role: Buck Regulator - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: VIN_19_24V to +3V3 regulator core (requires diode, inductor, input/output caps). - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Package: TO-220 **Pins:** - ~ON~/OFF [pin 5] - FEED_BACK [pin 4] - GROUND [pin 3] - OUTPUT [pin 2] - VIN [pin 1] ### U2 — [XL6019](https://www.flux.ai/adrian95/xl6019~91m.md) - Datasheet URL: http://www.xlsemi.net/datasheet/XL6019%20datasheet-English.pdf - Part Type: Filter - Manufacturer Part Number: XL6019 - Manufacturer Name: XLSEMI **Pins:** - EN - FB - GND - SW - VIN ### XT30 19V — [XT30UPB-F30.G.Y](https://www.flux.ai/lcsc/xt30upb-f30pgpy~zr19.md) - Package or Case Code: CONN-TH_XT30UPB-F - LCSC Part Number: C108769 - Part Type: Power Connectors - Manufacturer Name: AMASS(艾迈斯) - Product Info Url: https://lcsc.com/product-detail/Banana-and-Tip-Connectors_Changzhou-Amass-Elec-XT30UPB-F_C108769.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2207151430_Changzhou-Amass-Elec-XT30UPB-F30-G-Y_C108769.pdf - JLCPCB Part Class: Extended Part - Manufacturer Part Number: XT30UPB-F30.G.Y **Pins:** - - [pin 2] - + [pin 1] ### XT30 3 — [XT30UPB-F30.G.Y](https://www.flux.ai/lcsc/xt30upb-f30pgpy~zr19.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2207151430_Changzhou-Amass-Elec-XT30UPB-F30-G-Y_C108769.pdf - Product Info Url: https://lcsc.com/product-detail/Banana-and-Tip-Connectors_Changzhou-Amass-Elec-XT30UPB-F_C108769.html - Manufacturer Name: AMASS(艾迈斯) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: XT30UPB-F30.G.Y - Package or Case Code: CONN-TH_XT30UPB-F - LCSC Part Number: C108769 - Part Type: Power Connectors **Pins:** - - [pin 2] - + [pin 1] ### XT30 DCDC — [XT30UPB-F30.G.Y](https://www.flux.ai/lcsc/xt30upb-f30pgpy~zr19.md) - Part Type: Power Connectors - LCSC Part Number: C108769 - Package or Case Code: CONN-TH_XT30UPB-F - Manufacturer Part Number: XT30UPB-F30.G.Y - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Banana-and-Tip-Connectors_Changzhou-Amass-Elec-XT30UPB-F_C108769.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2207151430_Changzhou-Amass-Elec-XT30UPB-F30-G-Y_C108769.pdf - Manufacturer Name: AMASS(艾迈斯) **Pins:** - - [pin 2] - + [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jinyao/powerdistribution~vk](https://www.flux.ai/jinyao/powerdistribution~vk).* --- *Generated from [https://www.flux.ai/jinyao/powerdistribution~vk](https://www.flux.ai/jinyao/powerdistribution~vk)*