Question about Black & Decker 1000w Power Inverter
My laptop is a hp dv7-2185 dx. pretty beefy with a 1GB gddr3 graphics and more. When i plug it into an inverter, be it a 150watt, 220watt,up to a 400watt, it does not work. It would charge for about 7 seconds and turn off. I am thinking this is because the rated output current of the inverter. As the power block for the laptop may need lets say 2.8 Amps, it needs a sudden surge of about 8 or more amps. Thus, the sine wave throughput with the inverter has a protection module and cuts off at a given point giving you more of a square wave sinusoidal wave rather than a smooth parabolic curve. I personally have fixed this by simply over-doing the entire problem, I went to my local wal-mart superstore and exchanged my 400Watt inverter for a slightly more expensive 750Watt. (about $20 more) this seemed to seamlessly eradicate the issue all together. Sorry for the length response but i hope it helps and remember, KEEP YOUR RECEIPT!! Good luck to you all!
Invertors do NOT like the load that a typical laptop switching supply presents to them.
You are MUCH better buying a direct convertor that converts the input voltage to that required by the laptop. It is more efficient and somewhat safer. (and usually cheaper)
Posted on Sep 11, 2009
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Posted on Jan 02, 2017
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