Category: Power

Flow battery can run for 10 years with zero maintenance
by Jan Buiting @ elektormagazine.com: Harvard University researchers have developed a low-cost flow battery that stores energy in organic molecules dissolved in neutral pH water. In their report (see below) they claim that the new battery can run for a decade or more without...
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Increasing Battery Life With UB20M Voltage Detector
Engineers at the University of Bristol have developed a three terminal pico-power chip that can cut standby drain in sensor nodes – even compared with today’s low-power microcontrollers. It does this by replacing the low duty-cycle sleep-wake-sleep pattern used on MCU-based sensor...
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Open source 12V powerbank
A custom 12V powerbank for Cube i7 Stylus from Muxtronics: Why would anyone even try to build a power bank – i.e. an external battery for charging mobile devices – these days? These things are commodity, it’s impossible to compete. Right? Well, that is until you find out that...
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Ultra thin supercapacitor for peak power assist
Peggy Lee @ newelectronics.co.uk discuss about MURATA's ultra thin supercapacitor. The DMH series from Murata is said to be the lowest profile supercapacitor. The product is designed for peak power assist duties in wearable applications and various other devices. Measuring 20 x...
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PWM POWER REGULATOR
pinko @ blog.exrockets.com wanted to regulate the power to a resistive load so he decided to build a PWM power regulator based on PIC18LF2550. In order to synthesize chlorates and perchlorates in the home lab it is always good to have a way to regulate the current flowing through the...
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TP4056 3V3 Load Share Upgrade
A lot of project are battery powered and some of them need dual battery links. Robert on hackaday.io had shared his new project that shed light on this issue. He built an load sharing addon board with the ability to charge the battery while the project is operating. Many Chinese...
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The Next-Generation Semiconductor for Power Electronics
Researchers have demonstrated the high-performance potential of an experimental transistor made of a semiconductor called beta gallium oxide, which could bring new ultra-efficient switches for applications such as the power grid, military ships and aircraft. The semiconductor is...
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A 400W (1kW Peak) 100A Electronic Load Using Linear MOSFETs
Kerry Wong built a 400W/100A electronic load using linear MOSFETs. He writes: I bought a couple of IXYS linear MOSFETs (IXTK90N25L2) a while ago to test their capabilities when used as electronic load, and the result was quite impressive. So I decided to build another electronic...
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