current Archives - Page 3 of 10 - Raspberry PI Projects

TEXAS INSTRUMENTS’ TPS61099 SYNCHRONOUS BOOST CONVERTER

Texas Instruments’ converter features 800 nA ultra-low quiescent current Texas Instruments’ TPS61099x is a synchronous boost converter with 1 µA ultra-low quiescent current. The device is designed for products powered by alkaline batteries, NiMH rechargeable batteries, Li-Mn batteries, or rechargeable Li-Ion batteries where a high efficiency under light-load condition is critical to achieving long battery life operation. […]

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FLASH GRAPHENE SYNTHESIS – ELECTRICITY TURNS GARBAGE INTO GRAPHENE

Graphene is the thinnest yet one of the most strong materials known to man while being only one atom thick. On top of that, graphene is an excellent conductor of heat and electricity and has remarkable light absorption abilities. It is truly a material that could change the world, with unlimited potential for integration in

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RASPBERRY PI AND PPLOGGER MAKE A LOW-COST CHEMILUMINESCENCE DETECTOR

[Laena] and her colleagues at the La Trobe Institute for Molecular Science in Melbourne, Australia used a Raspberry Pi to make a low-cost electrochemiluminescence (ECL) detector to measure inflammation markers, which could be used to detect cardiovascular disease or sepsis early enough to give doctors a better chance at saving a patient’s life. ECL reactions emit light

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0 TO 10 V ADJUSTABLE LAB POWER SUPPLY WITH CURRENT CONTROL

The circuit presented here is a very simple and easy to build Lab Power Supply. The output of this power supply is adjustable from 0 to 10V DC, and it has current limit control up to 3A. Two Trimmer potentiometers are provided to adjust the voltage and current. The input supply is DC 12V to 18V

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VISHAY INTERTECHNOLOGY AUTOMOTIVE GRADE PIN PHOTODIODES FEATURE LOW 0.7 MM PROFILE, INCREASED SIGNAL TO NOISE RATIO

Vishay Intertechnology introduced two new surface-mount Automotive Grade silicon PIN photodiodes in the compact 0805 case size with a low 0.7 mm profile — 0.15 mm lower than previous-generation devices. Offered in black packages, the opaque sidewalls of the Vishay Semiconductors VEMD4010X01 and VEMD4110X01 eliminate unwanted side illumination to increase their signal to noise ratio. The AEC-Q101 qualified photodiodes are optimized for

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1A OVER CURRENT PROTECTION LOAD SWITCH

The Over-current limit load switch project presented here provides full protection to devices and loads from access load conditions. The default current limit is set to 1 Amp, however, this load limit is adjustable from 0.4A to 2A with the help of R4 ISET resistor. When an overload condition occurs circuit responds to that overload condition that lasts longer than

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FIRST BIZEN QUANTUM TUNNELLING TRANSISTORS LAUNCHED

A UK startup is to ship its first 1200V power devices using a new silicon architecture called Bizen that fits into TO247 or TO263 packages. by Nick Flaherty @ eenewseurope.com The first devices to use the Bizen process technology include three parts rated at 1200V/75A, 900V/75A and 650V/32A, available in the industry-standard TO247 or TO263 power MOSFET packages. These are

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MEET THE RFL-WATCH: LORA-BASED TEXT COMMUNICATOR

While adulations were still being showered on his work on the MORPHESP 240, Dr. Philippe Cadic (@Sulfroid on twitter), recently shared progress on another project called the RFL-Watch, via his twitter handle which is usually loaded with reports on the progress of his projects. Based on the RAK4260, the RFL-Watch is a wearable LoRa communicator device which at the

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LATEST ELECTROLYTIC CAPACITORS FROM VISHAY COME IN CYLINDRICAL ALUMINUM CASE

Low Profile Devices Offer Operating Temperature Up to +125 °C and Useful Life Up to 10,000 h in 10 Compact Case Sizes Vishay Intertechnology, Inc. today introduced two new series of miniature axial aluminum electrolytic capacitors. Offered in 10 compact case sizes ranging from 6.5 mm by 18 mm to 21 mm by 38 mm,

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CZ-3A0X SERIES CORELESS CURRENT SENSORS

AKM’s coreless current sensors are high-accuracy and achieve both creepage and clearance distance Corresponding to the UL safety standard UL61800-5-1 for industrial equipment, AKM has developed the CZ-3A0x series coreless current sensor which achieves both creepage distance and clearance distance greater than 8 mm. It supports a working voltage of 600 VRMS (with reinforced insulation), making insulation design easy. With a wide current

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