Three-phase high voltage inverter power board for FOC and scalar motor control based on STGIPN3H60 (SLLIMM™-nano)
This "RF Layout Reference Design" demonstrates excellent decoupling and layout techniques for low power RF devices in the 169 MHz band.
MAXREFDES161# is a high-performance frequency synthesizer capable of generating frequencies from 23.5MHz to 6GHz
72 W ultra-compact charger/adapter for appliances and industrial applications
This article introduces the framework structure and component modules of the design as well as the principles of each module. It also introduces the hardware design of each part, the software design of each part, and the software flow chart. The design is an intelligent LED desk lamp integrating multiple functions with STC89C52 microcontroller as the control core. The desk lamp realizes the function of automatically detecting whether there is someone in the room and automatically turning on/off; the desk lamp brightness has an adjustment function; it has a time display function; it has a temperature display function; and it has an alarm function. The hardware design is divided into eight parts, including the microcontroller control module, button module, desk lamp module, temperature module, clock module, alarm module, display module, and infrared sensing module. The microcontroller control uses STC89C52, the display module uses LCD1602C liquid crystal to display temperature, time, date, etc., the button module is used to adjust time, date, LED brightness, etc., the clock uses DS12C887 clock chip, and the desk lamp module uses 16 LEDs and uses a buzzer. The device emits an alarm sound, the temperature sensor uses a DS18B20 chip, and the human detection device uses a BIS0001 infrared thermal sensor. The software design is written in microcontroller C language and realizes all control functions.
The entire work is designed with only three buttons (one KEY1 on the GD32E231 board and two KEY2 and KEY3 on my stm32 board). In the game, KEY1 can be used to pause the game, and KEY2 and KEY3 are used to control the greedy snake. direction, KEY2 controls the snake to rotate clockwise, and KEY3 controls the snake to rotate in the forward direction.
i.MX RT1064 EVK is an evaluation kit for the i.MX RT1064 crossover processor, which uses NXP’s advanced Arm Cortex-M7 core implementation.
The TIDA00255 reference design utilizes the bq76940 analog front end (AFE) IC. It can measure battery voltage, mold temperature or external thermistor voltage using a 14-bit ADC. Current is measured individually by a separate 16-bit coulomb counter. The design turns off the low-side power FET to stop discharging or charging based on selected hardware limits. A microcontroller not included in this design will be part of the battery controller to communicate with the AFE to set protection thresholds, enable the power FETs, provide fault recovery, and shut down the FETs during over/under temperature conditions. Battery controller designs may include additional features that are not part of this reference design, such as secondary overvoltage protection, measurement, and isolated communications to inform the system of battery status.
The add-on kit for the NTAG I²C+ Explorer Kit (Interconnected NFC Tag) contains Category 4, Category 5 and Category 6 Flex antennas.
45 W USB PD 3.0 Power Supply with 3.3 V – 11 V / 5 A (45 W Power-limited) PPS Output Using InnoSwitch3-PD PowiGaN (INN3879C-H803)
2.5 W Non-Isolated Power Supply with Lossless Generation of AC Zero-Crossing Signal using LinkSwitch-TNZ
TIDA-00709 is a 36W dual-output auxiliary power supply with universal DC input, targeting server and telecom power supplies. This reference design uses the UCC28740 constant voltage/constant current (CV-CC) flyback controller to implement a quasi-resonant (QR) flyback converter with optocoupled feedback for voltage and primary-side regulation for current ( PSR). To improve efficiency, the TIDA-00709 uses a synchronous rectifier with a synchronous controller UCC24636 and a low RDS(on) MOSFET to achieve a 12V_ISO/2.75A main output. This design is small and economical and has almost all necessary built-in protection mechanisms, such as protection against output overvoltage and short circuits. Additionally, the design features built-in electronic fuses for fault isolation on the 12V main output voltage rail without affecting any other outputs.
TS472 based low noise microphone preamplifier demo board, 2 V deviation