... | ... | @@ -16,26 +16,36 @@ laboratory power-supply with a maximum output range of |
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image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/SOTA_ui_source/SOTA_uiSource_voltwerk.PNG[caption="Figure 1: ",title="Voltwerks VW1-U (1)",height=220,align="center"]
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The actual voltage range and maximum output
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current is limited by the used power source. In comparison
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to the OpenLab UI-Source, the output voltage of the VW1-
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U is restricted to a maximum of 4.5 V using a 5 V power
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supply. The OpenLab tool is able to generate up to 12 V
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by utilizing a standard USB power source. On the other
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hand, the OpenLab UI-source is limited, by design, to the
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maximum output specifications of the USB port. The output
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voltage of the VW1-U can be controlled by adjusting a small
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potentiometer on the front of the device. This laboratory
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The actual voltage range and maximum output current is limited by the used power source. In comparison to the OpenLab UI-Source, the output voltage of the VW1- U is restricted to a maximum of 4.5 V using a 5 V power supply. The OpenLab tool is able to generate up to 12 V
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by utilizing a standard USB power source. On the other hand, the OpenLab UI-source is limited, by design, to the maximum output specifications of the USB port. The output voltage of the VW1-U can be controlled by adjusting a small potentiometer on the front of the device. This laboratory
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power-supply is closed source and available for 59.00 dollars.
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== VariPower-USB-500A
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The VariPower-USB-500A by Etonnet LLC shown in figure 2 is a
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USB powered variable power supply with a maximum output range of
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1.2 to 4.8 V.
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image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/SOTA_ui_source/SOTA_uiSource_varipower.PNG[caption="Figure 2: ",title="VariPower-USB-500A (2)",height=220,align="center"]
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The actual output current is up to 500 mA with a USB cable connection to a computer but can be increased to 2.0 A if the external USB AC / DC adapter is used. The reason for the tiny product is that it is cheaper for the customer and easier to travel with it. This mini power-supply is available for 36.95 dollars.
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== Bibliography +
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. Revely Microsystems, _Voltwerks VW1-U_ [Online] http://www.revely.com/voltwerks/power
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. Etonnet LLC, _VariPower-USB-500A_ [Online] http://www.etonnet.com/products.aspx
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. electronic-lab.com: _AMPSTRIKE - BATTERY POWERED BENCH POWER SUPPLY_ [Online] http://www.electronics-lab.com/ampstrike-battery-powered-bench-power-supply/
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. CNXSoft - Embedded Systems News: _USBminiPower USB Power Supply Delivers 3 Outputs: 5V, 3.3V, and a Variable Output up to 14.3V (Crowdfunding)_ [Online] https://www.cnx-software.com/2015/04/29/usbminipower-usb-power-supply-delivers-3-outputs-5v-3-3v-and-a-variable-output-up-to-14-3v-crowdfunding/
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