Bluetooth power amplifier board based on TPA3110

Using TPA3110 digital power amplifier chip, the power can reach 15W, and there are two power interfaces. The Bluetooth part uses bk8000L finished module, which has good performance and affordable price. Supports button playback and pause, track switching, volume adjustment, and also supports external audio line input and microphone input. After testing the finished product, the sound quality is good, the Bluetooth connection is relatively stable, the button functions are normal, the external audio line input is normal, and the microphone calls are normal. A complete AD project file is provided, which can be modified as needed, and the BOM needs to be exported by yourself.

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Design based on STM32F103 air purifier

An air purifier based on stm32f103rct6 chip can measure temperature and humidity and control fans.

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Smart home appliances - support video playback function

Built-in Linux operating system, with H.264 video decompression function, can provide smooth video playback, support pause, shuttle fixed-point and other playback functions. Used for machine operation guidance and recipe teaching. You can easily connect to Wi-Fi through USB so that home appliances can also be connected to the Internet.

Lithium battery management system

The battery management system (BMS) solution developed based on MS51 is the link between the battery and the user. It is mainly to improve the utilization rate of the battery, prevent the battery from overcharging and over-discharging, and accurately control each battery to provide customers with The rich communication interfaces facilitate customers to do second development on this basis and speed up the time to market of customer products.

Universal Serial Bus Port Management Controller Solution USB Type-C PD 3.0 Fast Charging

This solution includes USB Type-C® PD 3.0 hardware layer driver and software protocol stack for developing USB PD applications. The M032 series acts as a universal serial bus port manager, and the NCT3807 is a port controller. Its software stack supports the USB-IF Association's power supply/charging specifications. This solution supports dual-port applications, and Nuvoton has extensive experience in USB Type-C® PD 3.0 product design.

M031BT dual-mode gaming mouse solution

The TWS headset charging bin solution developed based on ML51 mainly has two major functions: data communication with the headset and charge and discharge management. Data communication is carried out with the headset through the pogo pin to realize pop-up windows and other functions that require data communication; the battery charging management unit has built-in lithium battery overcharge, over-discharge, short circuit, over-current and other protection functions, making the system stable and reliable.

TWS earphone charging box

The TWS headset charging bin solution developed based on ML51 mainly has two major functions: data communication with the headset and charge and discharge management. Data communication is carried out with the headset through the pogo pin to realize pop-up windows and other functions that require data communication; the battery charging management unit has built-in lithium battery overcharge, over-discharge, short circuit, over-current and other protection functions, making the system stable and reliable.

Assistive trainer for planks and push-ups

Using the wearable sensor function of SensorTile.box, you can intuitively observe your movements and training conditions through curves when doing push-ups and planks.

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Child posture reminder

This work monitors the child's sitting posture when writing. When the child sits upright, no prompt is generated. When the child lowers his head, the sensor light flashes to signal an alarm!

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Children's toy "black box"--BabyCareAssistan

BabyCareAssistant is a children's toy "black box" based on SensorTile.box. It can be used to dynamically display motion data, real environment data, assist in monitoring children's activities, cries, etc.

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Gesture remote control

Use sensortile.box equipped with high-performance six-axis sensor lsm6dsox to realize gesture remote control.

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Abdominal breathing training trainer

The design is based on the SensorTile.Box kit, which is set to expert mode for direction change detection (using a gyroscope), close to the practitioner's lower abdomen; the LIS25BA bone conduction sensor collects and identifies the vibration signal of the user's breathing status at the nostrils. The signal output is also connected to the central main control circuit. The optimal compliance judgment for monitoring the breathing process coordination during the entire exercise process and the corresponding voice prompt information broadcast are made by the central main control circuit.

Monitoring, balancing and protection of 10-cell battery pack

TI Designs TIDA-00449 is a ready-to-use and tested hardware platform for monitoring, balancing and protecting power tool 10-cell series battery packs. Power tools increasingly use high power density battery packs based on lithium-ion or lithium iron phosphate cells, which require explosion protection against incorrect charging or discharging. TIDA-00449 also meets the thermal requirements for power tool battery packs when discharged at sustained high currents.

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Universal input 3.3V, 12V, 36V, 200W continuous PSU reference design for Class D amplifiers

This power module generates all the voltages required to power the Class D audio amplifier. The main output voltage is 36V, which provides 200W of continuous power and 540W of peak power. The first stage is a power factor correction boost. The flyback converter provides 12V on the primary side and 12V (300mA) and 3.3V (200mA) on the secondary side. Using a hardware switch and remote input, the converter can enter standby mode: in this state, the 36V output is disabled and 12V, 3.3V are "always on". In this way, the standby power can be reduced to 150mW (115Vac) and 270mW (230Vac). A second digital input switches the main input voltage from 36V to 18V, allowing it to enter a low-current consumption mode when the audio amplifier requires less power.

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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.

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12Gbps multi-channel BERT board reference design

This reference design is a 12Gbps low-cost bit error tester (BERT) that generates and checks up to 8 channels of pseudo-random binary sequences (PRBS). This proven design provides a convenient way to generate multi-lane high-speed serial bit streams up to 12Gbps and inspect the incoming serial bit stream for bit errors. This design can be used as a handheld BERT to evaluate the signal integrity and bit error performance of high-speed subsystems.

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Monitoring, balancing and protection of 10-cell battery pack

TI Designs TIDA-00449 is a ready-to-use and tested hardware platform for monitoring, balancing and protecting power tool 10-cell series battery packs. Power tools increasingly use high power density battery packs based on lithium-ion or lithium iron phosphate cells, which require explosion protection against incorrect charging or discharging. TIDA-00449 also meets the thermal requirements for power tool battery packs when discharged at sustained high currents.

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Powering Xilinx Zynq 7000 Series SoC/FPGA Evaluation Module with Single Power Management IC

This TPS65218-based reference design is a compact integrated power solution for the Xilinx® Zynq® 7010 SoC/FPGA (part of the Zynq® 7000 product family). This design shows the TPS65218 as an all-in-one PMIC used to provide the five power rails required to power the Zynq® 7010 SoC/FPGA. The TPS65218, including passive components, requires only 1.594 in ² of total board area to provide five power rails to the Zynq® 7010 . TPS65218 has the flexibility to support DDR3L or DDR3 memory. This power management IC can be powered from a single 5V supply or a single Li-ion battery. This design is guaranteed to operate over the entire industrial temperature range (-40°C to 105°C).

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16-button sensor key reference design using LDC1314 inductor-to-digital converter

The unique inductive sensing capabilities of the LDC1314 are used to implement a contactless 16-key multi-function keyboard. It uses standard PCB technology and simply manufactured components to achieve a low-cost solution.

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Multi-cell battery manager unit with integrated charging, fuel monitoring, authentication and protection functions

The Texas Instruments (TI) bq40z60 device is a battery pack manager that integrates battery charge control output, fuel monitoring and protection functions to enable fully autonomous operation of 2- to 4-cell Li-ion and Li-polymer battery packs. This architecture enables internal communication between the gas-monitoring processor and the battery charger controller to optimize charge based on external load conditions and power path source management during system load transients and adapter current limits. The charging current efficiency is different for different power delivery external components such as NFETs, inductors and sense resistors.

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