I needed small ultrasonic sensors for a flying sensor. So I got the smallest one – SRF01. Quite nice unit, works down to 0 cm. There were some problems with it – Maximum detection frequency is only ~14 Hz and the resolution isn’t so great (1 cm). Also, on some occasions after falling from a […]
SRF01 teardown and reverse engineering Read More »
Three US companies are proposing to meet the growing data processing demands of cloud-based computing and online gaming by connecting up thousands of graphics processors in ‘supercomputers’. Graphics processor firm Nvidia is working with IDT and Orange Silicon Valley to develop a scalable, low-latency cluster of up to 2,000 Tegra K1 mobile processors. For connecting
Cloud computer powered by 2,000 GPUs Read More »
he industry drive toward smaller, lighter and more efficient electronics has led to the development of the Switch Mode Power Supply (SMPS). There are several topologies commonly used to implement SMPS. This application note, which is the first of a two-part series, explains the basics of different SMPS topologies. Applications of different topologies and their
Switch Mode Power Supply (SMPS) Topologies (Part I) Read More »
AN6877 is linear AF level meter IC produced by Panasonic and it is commonly found on many audio equipment. This chip is no longer manufactured by Panasonic and finding replacement chip for AN6877 is also quiet difficult. The circuit described in this article is design to replace AN6877 base LED drivers and it is based
Replacement LED driver for AN6877 Read More »
Altera and IBM have designed an FPGA-based reconfigurable processor to improve the performance of supercomputers. The firms have created the first FPGA-based accelerator for a POWER8 CPU which features shared virtual memory between the FPGA and processor and so improves system performance in high-performance computing (HPC) and data centre applications for data compression, encryption, image processing
FPGA makes supercomputer run faster Read More »
Minimum noise, easy speed control and a high power, those are another reasons why to decide for GreenTech EC fans from EBM-Papst. A term „EC fan“ (electronic commutation) is generally used to mark energy-saving AC fans. In fact, these are DC (brushless) fans with AC/DC module and other electronics. EC fans reach up to 90%
Modern EC fans are able to save up to 50% of energy Read More »
Switching DC-to-DC voltage converters (“regulators”) comprise two elements: A controller and a power stage. The power stage incorporates the switching elements and converts the input voltage to the desired output. The controller supervises the switching operation to regulate the output voltage. The two are linked by a feedback loop that compares the actual output voltage
Dual Motor L298 H-Bridge Control project can control two DC motors connected to it. The circuit has been designed around popular dual H-Bridge L298 from ST. This circuit has current sense resistors for both H-bridges to provide voltage which enables this board to use in stepper motor applications. Specifications Motor supply : 7 to 46
Dual Motor L298 H-Bridge Motor Control Read More »
Even in these tricky financial times, opto-electronics is offering sufficient funding draw to allow entrepreneurs to start technology companies. One such firm is cork-based InfiniLED, which emerged from the Tyndall National Institute, becoming a company late in 2010. Unusually for a start-up “we were in the strange position of spinning-out of the Institute with a
µLED technology demo board from InfiniLED Read More »
Yes, these are your options when you want to set time relay of 12.51 series from Finder producer. Italian producer accommodated less active installers that can now set, resp. program time relay also lying down. Of course, something for something – you need to have a computer but luckily it is something that almost any
FUN but REAL: Manually or lying down Read More »
