The vehicle inverters market comprises major manufacturers such as Denso (Japan), Delphi Technologies (UK), Continental AG (Germany), Mitsubishi Electric Corporation (Japan), Toshiba (Japan), and Hitachi (Japan). Key Topics Covered:

What is it with video games and flashlights? For some reason, developers are determined that we must charge them via unconventional means. Heaven forfend we just press a button to perform a simple action! We must hammer buttons and waggle controllers. It’s a bit of an accessibility issue, truth be told.

The three LEM current transducers in Figure 1 all contain custom proprietary CMOS ASICs with fully integrated Hall cells. On the DC side of the inverter, there is an open-loop current transducer; on the AC side, a closed loop current transducer is used for the inverter control system and at the output a differential closed-loop transducer is used for residual current monitoring (RCM).

LYNBROOK, NY, FEBRUARY 12, 2019 – Indipro Tools, manufacturers of premium power solutions for digital and professional video applications, will unveil its new Fusion Dual V-Mount Battery Charger at NAB 2019 (Central Hall, Booth 11145). This two-channel lithium-ion charger features two independent charging bays and is capable of simultaneously charging two V-mount batteries at 2.5A each.

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That being said, it actually sounded better than I expected. It can put out decent volume and while the bass is understandably a bit thin, music is perfectly listenable so long as you don’t try to crank it up. It won’t replace your home stereo, but for a compact portable that would be sitting on a table beside you, it does fine. And if you leave it attached to the battery base (and don’t use that battery to top up smartphones) it has enough power to run for 72 hours. Three days…

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GaN transistors may be depletion or enhancement mode. The depletion-mode transistor is normally on and is turned off with a negative voltage relative to the drain and source electrodes (Fig. 6). In contrast, the enhancement-mode transistor is normally off and is turned on by positive voltage applied to the gate (Fig. 7). Depletion-mode transistors are inconvenient because at startup of a power converter, a negative bias must first be applied to the power devices or a short circuit will result. Enhancement-mode devices don’t have this problem: With zero bias on the gate, an enhancement-mode device is off and will not conduct current.

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