0.7A/1.2V synchronous buck converter with enable function based on ST1S12XX

ST1S12XX based 0.7 A/1.2 V synchronous buck converter with enable function

Schematic PCB

400 W / 1.6-54 MHz reference design using 2x SD2933

400 W / 1.6 - 54 MHz reference design using 2x SD2933

Schematic PCB

Design and production based on lithium battery charger_with schematic diagram and PCB

Since my four-wheel drive robot is powered by a 16.5V lithium battery, and there is no charger for this battery on the market, I am very confused about charging it. In desperation, we designed a portable and simple lithium battery charger. Solve the trouble of charging. The charger can output an adjustable charging current of 100mA-1A. The input voltage is VIN>18V, and it can be charged with the 19V voltage on the laptop. Charging time is generally determined according to the size of the charging output current.

Schematic PCB

Satellite GPS path recorder based on STM32 (with complete source code)

Satellite GPS path recorder based on STM32 (complete source code attached).

Schematic PCB

DER-903 - 72 W charger using InnoSwitch3-CP with PowiGaN technology, 93% efficiency

72 W isolated flyback power supply for chargers and adapters using PowiGaN-based InnoSwitch3-CP (INN3279CH215)

Schematic PCB

MAXREFDES145#: 8-channel IO-Link master

The MAXREFDES145# is a fully IO-Link®-compliant, 8-port IO-Link master reference design. This design uses TEConcept's IO-Link master stack and is both an IO-Link master reference design as well as an IO-Link sensor /actuator development and test system. Eight IO-Link ports allow for simultaneous testing of up to eight different sensors (or actuators).

Schematic PCB

SJA1105Q-EVB: Ethernet switch and PHY evaluation board.

The SJA1105Q-EVB is an evaluation board for the SJA1105P/Q/R/S Automotive Ethernet switchs series and TJA1102 dual 100BASE-T1 PHY.

SOCORAD32: A hackable open-source ESP32 amateur radio board with walkie-talkie functionality and data communications

The SOCORAD32, also known as the ESP32 Software Controlled Radio, is a professional grade hackable radio for amateur radio exploration, voice and data communications using simple AT commands. Just add a speaker and batteries and you've got a fully functional walkie-talkie. With a dedicated Push-to-Talk (PTT) button onboard, SOCORAD32 works right out of the box without touching a line of code!

Schematic PCB

OM7865: BGA3018 Demonstration Board, 40 MHz to 2600 MHz Broadband Amplifier Application

Schematic PCB

DER-748 - 45W Selectable Output Voltage USB Power Supply for InnoSwitch3-CP with PowiGaN Technology (INN3279C-H222

Schematic PCB

Monitor refrigerator temperature using ESP32-DevKitC based on ML model

Using the Edge Impulse platform, an embedded machine learning (ML) model is deployed on the ESP32-DevKitC-based sensor for temperature anomaly detection.

Schematic PCB

Source program based on 51 microcontroller multifunctional smart desk lamp (with clock, posture correction, display temperature and brightness)

Function description: 1. After power on, the LED light lights up, which means that the current light is in automatic control mode; 2. You can switch back and forth between automatic and manual modes through button K5; 3. In manual mode, buttons K2, K3, and K4 correspond to A light brightness; (unavailable when k1 is pressed) 4. In automatic mode, it must first detect someone before automatically controlling the brightness, otherwise the desk lamp will go out. You can block the light of the photoresistor, or use a flashlight to illuminate the photoresistor to simulate changes in lighting, so that you can see that the brightness of the desk lamp will change as the light intensity in the environment changes. The effect is that the weaker the light, the brighter the desk lamp. . If the human body sensor cannot detect anyone for 1 minute, the desk lamp will automatically turn off. (The photoresistor is behind the USB lamp); 5. Whether it is automatic mode or manual mode, the brightness is divided into 10 levels, and 0-9 is displayed on the LCD; 6. Set date and time: Press K1 (setting ) key, the cursor will flash at the displayed year position, indicating that the year can be adjusted at this time. If you need to adjust the year, press K3 (plus) and K4 (minus) to adjust the year. Then press the K2 (move) key, and the cursor will flash when the month position is displayed. The month can be adjusted in the same way. Press the K2 key again to set the day, hour, minute, and second respectively. 7. When approaching the ultrasonic wave, the buzzer will alarm.

Schematic PCB

Half bridge induction cooker

FRDM-KL26Z: Freedom Development Platform for Kinetis ^{® KL16 and KL26 MCUs (up to 128 KB Flash)}

Freedom KL26Z is an ultra-low-cost development platform for Kinetis L-series KL16 and KL26 MCUs based on Arm ^® Cortex ^® -M0+ processors.

Schematic PCB

Dual motor control and PFC demonstration board for STM32F103 and STGIPS20C60

Dual motor control and PFC demo board with STM32F103 and STGIPS20C60

Schematic PCB

22W MP-A11 Fixed Frequency Transmitter Reference Design

22W MP-A11 single coil wireless charger

Envelope tracking power supply reference design for audio power amplifiers

This envelope tracking power supply reference design helps extend battery life in portable audio applications such as Bluetooth® or Wi-Fi speakers. The low-power buck converter in this design features envelope tracking for audio power amplifiers, maintaining high efficiency over the output voltage range. By adding an audio envelope signal to the FB pin of TI's TPS61178 device, the output voltage can change according to the envelope of the audio signal, thereby dynamically adapting to the power supply of the TPA3128D2 power amplifier and optimizing its power consumption.

Schematic PCB

OM7864: BGA3018 Demonstration Board, 5 MHz to 300 MHz 18 dB Gain Inverting Amplifier Application

Schematic PCB

JN5169HA: ZigBee Evaluation Kit with NFC Debugging

Schematic PCB

CN0256

Isolated LVDS interface circuit

Schematic PCB