Month: September 2015
1A, 2 MHz, 60V boost/SEPIC/inverting DC/DC converter, 6µA Iq
by Graham Prophet: LT8330 is a current mode, 2 MHz step-up DC/DC converter with an internal 1A, 60V switch. It operates from an input voltage range of 3V to 40V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The...
Continue ReadingFreeze 75 – and you have a temperature under control
Freeze 75 spray will enable you to find faulty component or also to protect components from overheating during soldering. A device operates OK until it reaches stable operating temperature … a typical situation in praxis usually caused by a faulty component or faulty (cold)...
Continue ReadingMeasure small currents without adding resistive insertion loss
by Maciej Kokot @ edn.com: In most cases, you measure current by converting it into a proportional voltage and then measuring the voltage. Figure 1 shows two typical methods of making the conversion. In one method, you insert a probing resistor, RP, in series with the current path...
Continue ReadingPCI-Express Clock Generator
This reference design is a frequency generator for use in synchronizing a circuit’s operation. It consumes less than 50mW of power that specifically uses the IDT’s 9FGV0241 PCI-Express Clock Generator which is the lowest-power PCI Express timing family. It is a two output clock...
Continue ReadingA Connected Lamp to Wake Me Up
Limpkin has modified his IKEA lamp to use 10W LEDs. So for some reason I bought 2 IKEA lamps at a flea market. As IKEA furniture has a long history of being hacker-friendly, I figured they shouldn't be an exception to the rule. My plan? Fit a few 10W RGB LEDs in there together with...
Continue ReadingFake TV Security Light
by Marcus Jenkins: This gadget steps up the game from leaving a light on at home when you’re out. Place it near a window to make it look like somebody’s at home watching TV. The idea of leaving a light on at home while you’re out is to give the burglar an uneasy feeling that...
Continue ReadingGraphics on Nokia 5110 Lcd using Arduino
by Akshay Jha @ instructables.com: In this short instructable I am gonna displ some graphics on Nokia 5110 LCD using ARDUINO UNO R3 this is very helpful for beginners`s here is a testing video . Graphics on Nokia 5110 Lcd using Arduino -...
Continue ReadingSit.Up – alerts the user if sitting to long
electrobob.com has build a device that alerts you if sitting to long: Sitting for long periods has become more common in today’s jobs causing serious health issues. Unfortunately the plethora of activity trackers fail to address the issue: being rather active while sitting does not...
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