Archos AV400 D adaptor problem?
Unfortunately the D adapter malfunctioned and I am in a foreign country for 2 months and cant find a correct replacement in stock anywhere.
But notice a camcorder mains adapter I enjoy with me, have a similar DC connector and upon connecting it the Archos worked with it. However within is a difference in the Output Voltage/Amp specification and I am concerned it may basis damage to the Video recorder.
The resourceful adapter is DC output; 5V,1.6 A and the camcorder adapter I am trying on it has a superior Output, DC 8.4 V, 1.5A.
Question: Is the extra voltage going to cause desecrate to the Archos unit or can I use the temp adaptor until I can win proper replacement in nearly 2 month time when returning home?
Answers: The charging circuit in most players own a voltage regulation circuit that is designed to adopt adapters that provide a slightly higher voltage than is in actuality needed to charge and run the players. The Archos battery is probably 3.7v which is standard for lithium-ion battery. The charging voltage needs to be somewhere above that so I would guess the operating voltage needed is around 4 - 4.5 volts.
The voltage regulating circuits are designed to bear the 5 volts as input and output the operating voltage. In doing so, they will dissipate heat and are designed for a maximum input voltage.
The query is how tolerant the voltage regulating circuits are of input voltages significantly higher than what they are expecting. You might be fine near the Archos running a bit hot while on charge - or you may be setting the stage for a failure of the regulator which will totally disable the device.
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