Sound is produced by the PiezoListen piezoelectric speaker over a broader frequency range and with a greater output in the low range than any existing piezoelectric speakers, claims TDK. The speaker has an operating frequency range of 400 to 20,000Hz and achieves a high sound pressure of 80dB, even at low voltages of 24V peak to peak, or below. The PiezoListen […]
PIEZO SPEAKER IS THIN YET WITH A BROAD FREQUENCY RANGE Continue Reading
New modulation method increases operational lifetime of switching power units through digital, highly dynamic control and the use of film capacitors. Switching power units are used for the power supply of many electrical devices, e.g. computers, LED lights or laser welding equipment. They convert alternating current from the mains into the direct current required by
SMART ALGORITHM TRIPLES SERVICE LIFE OF POWER SUPPLIES Continue Reading
IEL provides solutions in the various sectors of Industrial automation, Smart Transportation, Healthcare, etc. Earlier this year, IEL launched “HYPER-RK36” PICO-ITX form factor SBC which runs on Rockchip RK3399 Processor with high computing and multi-media performance. It has several rich I/O interfaces such as USB 2.0, USB 3.0, 8-bit GPIO, RS-232/422/485, GbE ethernet and also a dual
IEL LAUNCHES PICO-ITX FORM FACTOR “HYPER-AL” Continue Reading
Synchronous four-switch buck-boost controller suits transport and medical use A 150V high efficiency four-switch synchronous buck-boost DC/DC controller, the LTC3777, by Analog Devices operates from input voltages above, below or equal to the regulated output voltage and had an efficiency of up to 99 per cent. The Power by Linear DC/DC controller has an input
Synchronous four-switch buck-boost controller suits transport and medical use Continue Reading
So the pi zero is cool, retro gaming is cool, im really not cool, but i thought ‘what the hell!!’ Im not overly fond of ‘rats nest’ wires, and i have a bit of an obsession with making things as small as possible, so this is what i came up with. tis just an ili9341
Pi Zero Gameboy = GameBoy Zero Continue Reading
Description Radioactivity is invisible and can be harmful to life. The goal of this project is to provide a simple device that could prevent cases of radiation poisoning. Professional radiation meters can be very accurate, but are also expensive, complex and fragile (most use vacuum discharge tubes made of glass). However in many occasions we
Open Radiation Detector Continue Reading
This tiny board designed to drive bidirectional DC brushed motor of large current. DC supply is up to 50V DC. A3941 gate driver IC and 4X N Channel Mosfet IRLR024 used as H-Bridge. The project can handle a load up to 10Amps. Screw terminals provided to connect load and load supply, 9 Pin header connector
50V – 10A Bidirectional DC Motor Driver Using A3941 Continue Reading
Arduino MKRFOX1200 has been designed to offer a practical and cost effective solution for makers seeking to add SigFox connectivity to their projects with minimal previous experience in networking. It is based on the Microchip SAMD21 and a ATA8520 SigFox module. Long Battery Life Can run for over six months on 2 AA 1.5V batteries
Arduino MKRFOX1200 Continue Reading
The June 23, 1988 issue of EDN included a Maxim Design News insert where we asked “Who in their right mind would choose a computer interface standard that uses ±12V supplies, requires expensive connectors, works over a limited distance, is error prone, difficult to network, and has no current loop isolation?” Yet, here we are
MAX232: The classic IC lives on since 1988 Continue Reading
Smart LCD with Automatic Brightness Adjusting Using Arduino and LDR Sensor Here is a simple Arduino project that focuses on adjusting the brightness of an LCD screen whenever there isn’t sufficient light in a room. The Arduino reads the surrounding light intensity using an LDR sensor. The room temperature and humidity range will also be displayed
Smart LCD Brightness Control using Arduino and LDR Continue Reading
