9V with 4Ah issue

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  1. - 23rd September 2008, 03:24 #1
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    Question 9V with 4Ah issue

    I am using the attached adapter. It should empower a circuitry with 4A for one hour (4Ah).

    As a reference I have a 9V block battery, rechargeable, 200 mAh.

    Using the 9V bb it works well for a very limited period of time due to it's low capacity. Using the adapter it seems as if not enough current can be delivered, as if there was a bottleneck.

    So the pic does not start it's program using the adapter and a led(+5V -> led -> resistor -> ground) is flashing and shows a very dimmed light. This led is on like normal using a PSU or the 9V block.

    What is wrong with the adapter, how to fix it?
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