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dc power converter

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dc power converter Customers Reviews

  • good

    posted by 5yafim5

    Very well built jacks, which fit properly. - Good quality cooper cable - Almost all the possible DC jack sizes. - Great for using with a portable high capacity Li-Ion battery.@Wery good Quantity/ Good quality cooper cable
    I use it with my collection There are also included some very exotic types. Very well built jacks, which fit properly. - Good quality cooper cable - Almost all the possible DC jack sizes. - Great for using with a portable high capacity Li-Ion battery.
    There are also included some very exotic types. Very well built jacks, which fit properly. - Good quality cooper cable - Almost all the possible DC jack sizes. - Great for using with a portable high capacity Li-Ion battery.
  • Get 5 volts from four AA batteries

    posted by LynnCochran

    I want to power an Arduino in a robot car from four AA batteries. When the batteries age, their combined voltage will drop from 6.3 volts to about 4V, so I need a DC-to-DC converter that can both step-down and step-up to get the desired 5 V output. This DC-DC converter can do that job! I tested my unit and measured about 58% efficiency for a 5V, 110 mA output over an input voltage range from 6.5V down to 4V. Nothing got noticeably warm.
    I accidentally shorted the output during testing (don't measure output voltage with a current meter ;), and the converter stopped working. However, after about a minute, it went back to working. Apparently the thermal shutdown in the IC had saved the day.
    This should work in my application. This DC-DC converter uses a SEPIC design (see Wikipedia), so it only needs one IC (an LM2587). I bought a second type of DC-DC converter just in case this one didn't work out (SKU 228957); it also works, with a slightly lower efficiency and bigger board area.
  • cheaper price ,good current rating

    posted by Daio2012

    Small Size ,high current output ,stability.Better constructuion alluminum houseRaining proof ,not waterproof
    Resonable small size,even considering the price and high current output,this is a good choice.
    higher current output,stability...etc
  • Switching Regulator

    posted by Logsplitter

    A simple device, no external components required. Output ripple is very low, as is heat as full output. No heatsink necessary even at continuous full output, (with 15 volts supply voltage).
    The regulators can be combined with steering diodes to increase output current. The ripple does not appear to increase even when combining the output of 3 regulators.
    An excellent stand alone regulator, especially for a USB power source. Have used more than a dozen for automotive cellphone chargers without a single failure
  • Great for replacing nonstandard plugs

    posted by StellanL

    Fast replacement for any DC power connector where the cable has started to go bad, which often happens where it goes into the plug. Male connector makes surplus power supplies that have vendor-specific plugs useful in a minute. Female connector lets you do the same for any gadget. Both together are also useful to quickly turn any spare piece of cable into a DC extension cord, or for making a current-measurment cable.
    I wish someone would make these for USB connectors too.
    I keep a pair in my spares box. Well worth the money.

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