The AO3422 from Alpha & Omega Semiconductor is a high-performance, N-Channel Enhancement Mode Field Effect Transistor (FET) that leverages advanced trench technology to achieve outstanding RDS(ON) and low gate charge. Designed for efficient power conversion and load switching applications, this component operates effectively across a wide gate drive range of 2.5V to 12V. The AO3422 is characterized by a drain-source voltage (VDS) of 55V and a continuous drain current (ID) of 2.1A at a gate-source voltage (VGS) of 4.5V. Its RDS(ON) is impressively low, coming in at less than 160mΩ at VGS of 4.5V, making it suitable for a variety of power management tasks. The device is encapsulated in a compact SOT23 package, offering a robust solution for space-constrained applications. Additional features include a maximum junction temperature of 150°C, high forward transconductance, and fast switching characteristics that support efficient and reliable operation in high-performance circuit designs.

Raspberry Pi 4 based AI robot car with camera, four encoder motors, dual TB6612FNG drivers, ToF/ultrasonic/IMU sensors, PCA9685 servo control, and 2S LiPo power through emergency and main switches.

The DMN10H220L, manufactured by Diodes Incorporated, is a 100V N-Channel Enhancement Mode MOSFET designed to minimize on-state resistance (RDS(on)) while maintaining superior switching performance. This MOSFET features a maximum drain-source voltage (VDSS) of 100V, with RDS(on) values of 220mΩ at VGS = 10V and 250mΩ at VGS = 4.5V. It supports a continuous drain current (ID) of up to 1.6A at TA = +25°C. The component is optimized for high-efficiency power management applications, including load switches, and offers low input capacitance, fast switching speed, and low input/output leakage. The DMN10H220L is housed in a SOT23 package, is fully RoHS compliant, and is available in lead-free, halogen-free, and antimony-free "Green" versions. Additionally, an automotive-compliant variant (DMN10H220LQ) is available, meeting AEC-Q100/101/200 standards and manufactured in IATF 16949 certified facilities.

Handheld Xbox 360 system with integrated controller electronics, battery-managed USB-C PD power, and a separate dock that automatically switches display, Kinect, and DVD drive paths through a mezzanine docking interface.

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This project is an RF-ID lock circuit, complete with microcontroller (MCU). It features an RC522 RFID reader for identification, controlled by an STM32F103C8T6 MCU. The structure also includes an OLED display, lock circuit, and user interface switches. Designed to operate with a AAA battery power source. #MCU #referenceDesign #simple-embedded #stm #project #STM32 #lock #OLED #template #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This project is an RF-ID lock circuit, complete with microcontroller (MCU). It features an RC522 RFID reader for identification, controlled by an STM32F103C8T6 MCU. The structure also includes an OLED display, lock circuit, and user interface switches. Designed to operate with a AAA battery power source. #MCU #referenceDesign #simple-embedded #stm #project #STM32 #lock #OLED #template #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

This project is an RFID lock circuit, complete with microcontroller (MCU). It features an RC522 RFID reader for identification, controlled by an STM32F103C8T6 MCU. The structure also includes an OLED display, lock circuit, and user interface switches. Designed to operate with a AAA battery power source. #MCU #referenceDesign #simpleEmbedded #stm #project #STM32 #lock #OLED #template #reference-design

This is a BLE to WiFi gateway Reference Design. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #referenceDesign #edge-computing #espressif #stm #template #ble #reference-design

Simple plug-and-play breadboard power supply with current monitoring output, LED indicators, switches for both rails, and decoupling capacitors.

This project is an RF-ID lock circuit, complete with microcontroller (MCU). It features an RC522 RFID reader for identification, controlled by an STM32F103C8T6 MCU. The structure also includes an OLED display, lock circuit, and user interface switches. Designed to operate with a AAA battery power source. #MCU #referenceDesign #simple-embedded #stm #project #STM32 #lock #OLED #template #reference-design

This is a reference design of step-up dc-to-dc switching converter based ADP1613 with a 15V output #dcdc #power #boost #15V #referenceDesign #powermanagement #analogdevices #template #reference-design

The Sinopower APM2300CA is a high-performance N-Channel Enhancement Mode MOSFET designed for efficient power management applications in notebook computers, portable equipment, and battery-powered systems. This MOSFET offers a drain-source voltage (VDSS) of 20V and a continuous drain current (ID) of 6A, providing reliable and rugged performance. Featuring a low R_DS(on) of 25mΩ at V_GS=10V, 32mΩ at V_GS=4.5V, 40mΩ at V_GS=2.5V, and 65mΩ at V_GS=1.8V, the APM2300CA ensures minimal power loss and high efficiency. The component is housed in a compact SOT-23 package, making it suitable for space-constrained applications. With a maximum junction temperature of 150°C and compliance with RoHS and halogen-free standards, the APM2300CA is an environmentally friendly choice that does not sacrifice performance. Other notable features include low gate charge and fast switching capabilities, making it ideal for rapid and efficient power conversion tasks.

This is a reference design of step-up dc-to-dc switching converter based ADP1613 with a 15V output #dcdc #power #boost #15V #referenceDesign #powermanagement #analogdevices #template #reference-design

The inverter specs are Switching frequency: 200kHz Input voltage: 180VDC Output voltage: 120VAC Max power: 1500W I have designed an Inverter schematic for an uninterruptible power supply (UPS), Used an efficiency LCL topology filter to eliminate 3rd and 5th harmonics as induction motor is connected at load. The Inverter schematic that can convert 180VDC into 120VAC, which can be used in any household or industrial application. You can refer the BOM to check the MOSFET parts, drivers, and filter parameter values.

The inverter specs are Switching frequency: 200kHz Input voltage: 180VDC Output voltage: 120VAC Max power: 1500W I have designed an Inverter schematic for an uninterruptible power supply (UPS), Used an efficiency LCL topology filter to eliminate 3rd and 5th harmonics as induction motor is connected at load. The Inverter schematic that can convert 180VDC into 120VAC, which can be used in any household or industrial application. You can refer the BOM to check the MOSFET parts, drivers, and filter parameter values.

High-current 12V to 5V robot power distribution PCB with XT60 battery input, inline fuse protection, switched 12V rail, 5V/5A buck regulation, dedicated outputs for Raspberry Pi, sensors, USB hub, fan, and motor power distribution.

2-layer 75×66mm RED KOMODO-X power and IO distribution board with dual input ORing, protected switched bus, 3.3V logic rail, edge solder-pad flying-lead terminals, and split ground star-point architecture.

Architectural Lavender Translation Collar – ESP32‑S3 Wi‑Fi + LoRa, USB‑C, Li‑ion, low‑power design Overview Experience a cutting-edge IoT solution with this low‑power board built around the ESP32‑S3‑MINI‑1‑N8. Designed for seamless Wi‑Fi (2.4 GHz), BLE, and LoRa (868 MHz) connectivity, this board integrates ENS161 and ENS210 sensors over I2C alongside an RFM95W‑868 LoRa radio on SPI. It is powered via a 3.7 V Li‑ion cell with USB‑C charging up to 500 mA, complete with full battery protection, a robust 3.3 V rail tailored for Wi‑Fi burst currents, and per‑peripheral power gating to enhance energy efficiency. Core Features • MCU: ESP32‑S3‑MINI‑1‑N8 equipped with an onboard PCB antenna for 2.4 GHz Wi‑Fi/BLE, ensuring optimal wireless performance. • Sensors: Integrated ENS161 and ENS210 sensors utilize a shared I2C bus with controllable 4.7 kΩ pull‑ups for streamlined communication. • LoRa Radio: The RFM95W‑868 module, connected via SPI, enables long‑range communication at 868 MHz. Power & USB‑C Connectivity • Battery: A reliable 3.7 V 1200 mAh Li‑ion battery connected via a right‑angle JST‑PH 2‑pin connector features built‑in battery protection. • Charging: The USB‑C receptacle, with CC resistors and TVS protection on D+/D− along with series resistors, supports fast, safe charging with a current limit of 500 mA. • Regulation: A dedicated 3.3 V regulator capable of handling Wi‑Fi burst currents coupled with bulk and high‑frequency decoupling ensures stable operation, supported by status LEDs indicating power and charge states. Low‑Power Control • Peripheral Management: Load switches allow selective power‑gating of the ENS161, ENS210, and RFM95W modules, controlled directly by ESP32‑S3 GPIOs. • Energy Efficiency: Controllable I2C pull‑ups minimize idle current, vital for prolonged battery life in IoT applications. RF and Antenna Integration • 2.4 GHz: Utilizes the integrated PCB antenna on the ESP32‑S3 with proper ground/metal keep‑out zones for optimal signal integrity. • 868 MHz: Features a controlled‑impedance feed from the RFM95W to a PI matching network (C‑L‑C pads) with flexible antenna options—selectable via SMA connector, chip antenna, or PCB trace—and includes RF ESD protection. Connectivity & Debug Features • USB‑C Interface: Provides secure data connectivity with integrated safeguards and proper terminations. • Debugging: A comprehensive programming/debug header exposes EN, BOOT, and UART lines, with test points on key rails and buses (3V3, VBAT, SCK, MOSI, MISO, SDA, SCL, RESET/EN, GND) to simplify development and troubleshooting. Design Verification • Rigorous ERC/DRC and decoupling checks ensure adherence to component ratings and optimal signal routing. • Maintain RF keep‑outs and impedance‑controlled traces for both 2.4 GHz and 868 MHz paths, securing reliable performance even during high‑intensity operations. #IoT #ESP32S3 #LoRa #LowPowerDesign #USB-C #WirelessConnectivity #BatteryPowered #RFDesign

The DMN3016LFDF is an N-Channel Enhancement Mode MOSFET manufactured by Diodes Incorporated, designed for high-efficiency power management applications. This MOSFET features a low on-state resistance (RDS(ON)) of 12mΩ at VGS = 10V and 16mΩ at VGS = 4.5V, with a maximum drain current (ID) of 10A at TA = +25°C. The device operates with a drain-source voltage (BVDSS) of 30V and a gate-source voltage (VGSS) of +20V. It is ideally suited for battery management, power management functions, and DC-DC converters due to its superior switching performance and low gate threshold voltage. The component is housed in a U-DFN2020-6 (Type F) package with a 0.6mm profile, making it suitable for low-profile applications. It is also fully RoHS compliant, halogen and antimony-free, and qualified to JEDEC standards for high reliability.