# Learn Schematic 3ee2 ## Description High-Current 12–30V 20A N-Channel MOSFET H-Bridge Motor Driver Board ## Project Details - **Owner:** andreybrigunet - **Created:** 10/28/2025 - **Last Updated:** 10/28/2025 - **Visibility:** Public - **Domain:** Industrial/Manufacturing - **Operating Voltage:** 30V - **Role Details:** MOSFET H-Bridge for high-current motor control, includes TVS protection and snubber network, MCU for logic control - **Max Current:** 20A - **System Architecture:** flowchart LR VMotor[12-30V Supply] --> HBridge[H-Bridge MOSFETs] HBridge --> Motor[DC Motor] Motor --> GND[Ground] VMotor --> BulkCap[Bulk Cap 100-470µF] VMotor --> TVS[TVS Diode] HBridge --> Snubber[Snubber RC] MCU[MCU] -->|IN1, IN2, PWM, EN| GD[Gate Driver] GD -->|HS/LS Drive| HBridge GD --> Boot[Bootstrap Network] - **Operating Voltage:** 12V - **Role:** Power Conversion ## Key Components ### — [100nF0603](https://www.flux.ai/charleszard/100nf0603~2x.md) - Manufacturer Part Number: CL10B104KB8NNNC - Voltage: 50V - Capacitance: 100nF - Tolerance: 10% - Substitute Manufacturer Part Number: C1591 - Package or Case Code: C_0603_1608Metric **Pins:** - ~ [pin 1] - ~ [pin 2] ### D1 — [UF4007](https://www.flux.ai/lcsc/uf4007~dqda.md) - Manufacturer Name: MDD(辰达半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407291942_MDD-Microdiode-Semiconductor-UF4007_C960666.pdf - Manufacturer Part Number: UF4007 - JLCPCB Part Class: Extended Part - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Diodes - Fast Recovery Rectifiers - Product Info Url: https://lcsc.com/product-detail/Diodes-Rectifiers-Fast-Recovery_MDD-Microdiode-Electronics-UF4007_C960666.html - LCSC Part Number: C960666 **Pins:** - A [pin 2] - K [pin 1] ### D2 — [UF4007](https://www.flux.ai/lcsc/uf4007~dqda.md) - Manufacturer Name: MDD(辰达半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407291942_MDD-Microdiode-Semiconductor-UF4007_C960666.pdf - Manufacturer Part Number: UF4007 - JLCPCB Part Class: Extended Part - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Product Info Url: https://lcsc.com/product-detail/Diodes-Rectifiers-Fast-Recovery_MDD-Microdiode-Electronics-UF4007_C960666.html - Part Type: Diodes - Fast Recovery Rectifiers - LCSC Part Number: C960666 **Pins:** - A [pin 2] - K [pin 1] ### D3 — [UF4007](https://www.flux.ai/lcsc/uf4007~dqda.md) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: UF4007 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407291942_MDD-Microdiode-Semiconductor-UF4007_C960666.pdf - Manufacturer Name: MDD(辰达半导体) - Part Type: Diodes - Fast Recovery Rectifiers - Product Info Url: https://lcsc.com/product-detail/Diodes-Rectifiers-Fast-Recovery_MDD-Microdiode-Electronics-UF4007_C960666.html - LCSC Part Number: C960666 - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD **Pins:** - A [pin 2] - K [pin 1] ### D4 — [UF4007](https://www.flux.ai/lcsc/uf4007~dqda.md) - Product Info Url: https://lcsc.com/product-detail/Diodes-Rectifiers-Fast-Recovery_MDD-Microdiode-Electronics-UF4007_C960666.html - Part Type: Diodes - Fast Recovery Rectifiers - LCSC Part Number: C960666 - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Manufacturer Part Number: UF4007 - JLCPCB Part Class: Extended Part - Manufacturer Name: MDD(辰达半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407291942_MDD-Microdiode-Semiconductor-UF4007_C960666.pdf **Pins:** - A [pin 2] - K [pin 1] ### J1 — [Connector 01x02 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x02-horizontal~jah.md) - Part Type: Connector - Manufacturer Part Number: PZ254R-11-02P **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] ### Q1 — [IRF9540N](https://www.flux.ai/kicad-part-library/irf9540n~nu.md) - Datasheet URL: http://www.irf.com/product-info/datasheets/data/irf9540n.pdf - Package or Case Code: TO-220-3_Vertical - Manufacturer Part Number: IRF9540N - Manufacturer Name: Texas Instruments Inc. **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [IRF9540N](https://www.flux.ai/kicad-part-library/irf9540n~nu.md) - Package or Case Code: TO-220-3_Vertical - Manufacturer Part Number: IRF9540N - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: http://www.irf.com/product-info/datasheets/data/irf9540n.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q3 — [IRF540PBF](https://www.flux.ai/jecstronic/irf540pbf~ex0.md) - Part Type: Transistor - Datasheet URL: https://www.vishay.com/docs/91021/irf540.pdf - Manufacturer Part Number: IRF540PBF - Manufacturer Name: Vishay Siliconix - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q4 — [IRF540PBF](https://www.flux.ai/jecstronic/irf540pbf~ex0.md) - Datasheet URL: https://www.vishay.com/docs/91021/irf540.pdf - Part Type: Transistor - Manufacturer Part Number: IRF540PBF - Manufacturer Name: Vishay Siliconix - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### U1 — [817B](https://www.flux.ai/lcsc/817b~v8lo.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Optocouplers_UMW-Youtai-Semiconductor-Co-Ltd-817B_C695830.html - Part Type: Optocouplers - Phototransistor Output - Manufacturer Part Number: 817B - Manufacturer Name: UMW(友台半导体) - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2310231450_UMW-Youtai-Semiconductor-Co---Ltd--817B_C695830.pdf - LCSC Part Number: C695830 **Pins:** - A [pin 1] - C [pin 2] - COL [pin 4] - EM [pin 3] ### U2 — [817B](https://www.flux.ai/lcsc/817b~v8lo.md) - LCSC Part Number: C695830 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2310231450_UMW-Youtai-Semiconductor-Co---Ltd--817B_C695830.pdf - Manufacturer Name: UMW(友台半导体) - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Product Info Url: https://lcsc.com/product-detail/Optocouplers_UMW-Youtai-Semiconductor-Co-Ltd-817B_C695830.html - Part Type: Optocouplers - Phototransistor Output - Manufacturer Part Number: 817B - JLCPCB Part Class: Extended Part **Pins:** - A [pin 1] - C [pin 2] - COL [pin 4] - EM [pin 3] ### U3 — [817B](https://www.flux.ai/lcsc/817b~v8lo.md) - Manufacturer Name: UMW(友台半导体) - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Product Info Url: https://lcsc.com/product-detail/Optocouplers_UMW-Youtai-Semiconductor-Co-Ltd-817B_C695830.html - Part Type: Optocouplers - Phototransistor Output - Manufacturer Part Number: 817B - JLCPCB Part Class: Extended Part - LCSC Part Number: C695830 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2310231450_UMW-Youtai-Semiconductor-Co---Ltd--817B_C695830.pdf **Pins:** - A [pin 1] - C [pin 2] - COL [pin 4] - EM [pin 3] ### U4 — [817B](https://www.flux.ai/lcsc/817b~v8lo.md) - JLCPCB Part Class: Extended Part - Part Type: Optocouplers - Phototransistor Output - Manufacturer Part Number: 817B - Product Info Url: https://lcsc.com/product-detail/Optocouplers_UMW-Youtai-Semiconductor-Co-Ltd-817B_C695830.html - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Manufacturer Name: UMW(友台半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2310231450_UMW-Youtai-Semiconductor-Co---Ltd--817B_C695830.pdf - LCSC Part Number: C695830 **Pins:** - A [pin 1] - C [pin 2] - COL [pin 4] - EM [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/andreybrigunet/learn-schematic-3ee2~xd](https://www.flux.ai/andreybrigunet/learn-schematic-3ee2~xd).* --- *Generated from [https://www.flux.ai/andreybrigunet/learn-schematic-3ee2~xd](https://www.flux.ai/andreybrigunet/learn-schematic-3ee2~xd)*