Provides three-channel, ±5% stable output high-efficiency PoE (Power over Ethernet) power supply

This note describes a triple-output, high efficiency, POE (Power over Ethernet) power supply with synchronous rectification. The supply has ±5% regulation an all outputs and meets all the IEEE802.3af requirements. The topology for the dc-dc converter is a continuous current flyback. The switching frequency for the primary PWM is 275 Khz.

Automotive Dashboard Indicator Driver Reference Design

This TI reference design is an automotive dashboard signaling solution that contains a monolithic, medium voltage, low current power 12-bit shift register designed specifically for use in systems requiring relatively moderate load power, such as LEDs in car dashboards. This design is part of a complete automotive dashboard system solution optimized for the mid-range dashboard market. The entire solution supports 4.5-40V system functionality and can withstand cold crank, start-stop and load dump conditions.

Schematic PCB

88MW32X AWS IoT Starter Kit

Developer Starter Kit

RDR-747 - 65W power supply based on InnoSwitch3-EP

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Sub-1GHz sensor-to-cloud industrial IoT gateway reference design for Linux systems

The TIDEP0084 reference design shows how to connect sensors to the cloud over long-range sub-1GHz wireless networks suitable for industrial environments such as building control and asset tracking. It is powered by TI Sitara™ AM335x processors and SimpleLink™ sub-1GHz CC1310/CC1350 devices. This reference design comes pre-integrated with TI's 15.4-Stack Software Development Kit (SDK) and Linux® TI Processor Software Development Kit (SDK) for sub-1GHz star networking. TI Design Network Partner stackArmor enables cloud connectivity and visualization of sensor node data through cloud application services.

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Simple pedometer design based on GD32F350

This work is a simple pedometer design. It mainly uses MEMS sensors to detect changes in human body posture. It uses a pedometer algorithm to implement a simple pedometer function. It uses an OLED screen as a display device and adds a GY-30 light sensor module to detect changes in brightness of the surrounding environment. To adjust the OLED backlight brightness in real time; at the same time, the on-chip RTC is used to realize the real-time clock function. Due to limited time resources, it can be expanded later to add heart rate detection, temperature, humidity and air pressure, voice playback and networking functions.

Schematic PCB

Bluetooth base station for smart running shoes based on GD32F350

The Bluetooth base station designed this time for smart running shoes is mainly used in school classrooms, gyms and other places. Taking school classrooms as an example, schools and parents pay attention to students' daily exercise and learning status, and balance work and rest. Students put on smart shoes and place Bluetooth base stations in the classroom. Without getting rid of mobile phones, each student's movement status can still be collected that day. When students attend class, the base station automatically connects to the smart shoes via Bluetooth and obtains the step count, and stores the student ID and step count. After the day's class, the teacher can use the PC software to check the status of the students that day. During the class, the teacher can also use the PC software to control the connection to the designated smart shoe device.

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MR-16 LED driver and 5V auxiliary supply for powering pulsed LED coolers

This application note presents a reference design for a 4S1P MR-16 LED driver that provides 750mA to a string of four white LEDs (WLEDs). The circuit operates from a 24V source and is based around the MAX16820 hysteretic LED driver. Also included is a MAX5033 24V-to-5V, 150mA switching power supply to power a Nuventix® pulsating LED cooler.

DC-DC flyback power supply basic simulation circuit

Wireless backhaul power

The design provides all the power supply rails and power sequencing necessary to power Xilinx® ZU9/15 Wireless Backhaul power supplies. The MAX15303, MAX20730, MAX17541G and MAX17509 ICs are used to generate all seven rails.

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Isolated RS-485 reference design with integrated signal and power

The TIDA-00892 reference design provides a compact solution capable of generating isolated DC power while supporting isolated RS-485 communications. This reference design contains a reinforced digital isolator with integrated power supply and an RS-485 communications transceiver.

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TWR-K60F120M: Kinetis K60 120 MHz Tower System Module

NXP TWR-K60F120M is a development board for Kinetis K10, K20 and K60 120/150MHz 32-bit ARM ^® Cortex ^® -M4 MCUs

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Automotive precision electronic fuse reference design

Fuses are used in many products to protect against possible damage caused by current surges and overcurrents. Traditional fuses used in the automotive space have lower accuracy and longer response times. The TIDA-00795 Automotive Precision Electronic Fuse Reference Design is an alternative to traditional fuses that is more accurate and offers capabilities not found in traditional fuses. This electronic fuse reference design can be used as a building block for implementing a multi-channel electronic fuse box. It can also be used in body control modules (BCM) and electronic control units (ECU).

Schematic PCB

MAXREFDES1080: 5V/1A LED driver in step-down, constant-current configuration using MAX16820

As LEDs are becoming more and more popular, so is the need for small, cost-effective solutions. The MAXREFDES1080 is a constant-current, high-brightness LED (HB LED) driver. It delivers 5W of power to a single LED string, which is included in the design. The circuit is in a step-down configuration and is designed for a 12V input.

Calibration system for pressure transmitter based on AD855X programmable gain amplifier

This reference design addresses this need for pre-factory calibration and provides a complete multi-channel fully automatic calibration system for pressure transmitter calibration before leaving the factory.

Schematic PCB

5A/12V step-down DC-DC converter using MAX17506 with integrated HS switch and external LS switch

The MAX17506 is a high-efficiency switching regulator that delivers up to 5A load current at output voltages from 0.9V to (0.9 x VIN). The device integrates the highside MOSFET and operates over 4.5V to 60V, making it ideal for on-board point-of load and post-regulation applications.

USB HID keyboard, mouse and game controller based on stm32 and mpu9250.zip

USB HID keyboard, mouse and game controller based on stm32 and mpu9250.

Schematic PCB

35W Brick Adapter Reference Board

This is a 35W 19.0V/1.84A USB adapter reference design using quasi-resonant PWM integrated circuit ICE2QS03G, CoolMOS™ IPD60R600P6 (DPAK), 2 small signal low voltage MOSFETs 2N7002 and high-speed switching diode BAS21-03W in a short brick shape , peak power is 45W, lasting 2 milliseconds.

MAXREFDES1199: Two-layer, 5V/2.5A, synchronous step-down DC-DC converter using the MAX17244

The MAXREFDES1199 demonstrates how to build a lowcost buck DC-DC converter using the step-down converter MAX17244 for 5V DC output applications from a 12V to 32V input. This reference design delivers up to 2.5A at 5V. This design uses a two-layer board and minimizes component count to reduce cost.

Based on 51 microcontroller electronic perpetual calendar code

The main function of the electronic perpetual calendar is to display the Gregorian year, month, day, week, [hour] hour, minute, second and the lunar month and day. When displaying the lunar time, it can indicate whether it is a leap year.

Schematic PCB