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david90
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On the adapter, Vout is 12Vdc but when I measured it with a voltmeter it shows 19.5V. Is there a typo or does the voltage somehow drops down to 12V when in use with a load?
dduardo said:Are you sure you not measuring RMS value?
Vrms = Vo/sqrt(2)
An AC to DC wall adapter is used to convert the alternating current (AC) from a wall outlet into direct current (DC) that is suitable for powering electronic devices. This allows devices that require DC power, such as laptops, to be used with a standard AC outlet.
"Vout" stands for output voltage, which in this case is 12 volts (Vdc). However, the adapter may actually measure a slightly higher output voltage of 19.5 volts due to factors such as voltage drop and efficiency. This is still within the acceptable range for most electronic devices, but it's important to check the voltage requirements of your specific device before using the adapter.
No, it's important to check the voltage and current requirements of your device before using any adapter. Using an adapter with the wrong output voltage could damage your device.
You can check the voltage and current requirements of your device and compare them to the output specifications of the adapter. It's also important to make sure the plug size and polarity (positive and negative) match your device.
It is generally safe to leave the adapter plugged in when not in use, but it's important to note that it will still consume a small amount of energy. It's recommended to unplug the adapter when not in use to save energy and prevent any potential hazards.