This is a general question from a non electrical guy.
I got a circuit working on 3vdc batteries.
When I take a 5VDC transformer and drop the V with diodes to about 3V, the circuit acts weird. What are the possible differences to the above scenario that could result that using a transformer giving out 3v does not work?
A different scenario, I got a board that is a keychain remote working off of 5VDc, when the switch is on, there are two terminals that measures 5VDC. I am trying to trip a small relay, but when the relay is powered with this terminal, the relay does not trip. However, it measures 5VDC, and it does light a LED, what are the possible causes that eventhough the terminals measures 5VDC, that it does not trip a small relay. If it is amps, how do I confirm this is the problem or measure it??
3rd question: Is there a suggested way to drop a 5vdc charger to act like 2XAA batteries? The way I tried above, seems to not work correctly.
Thanks for your help.
I got a circuit working on 3vdc batteries.
When I take a 5VDC transformer and drop the V with diodes to about 3V, the circuit acts weird. What are the possible differences to the above scenario that could result that using a transformer giving out 3v does not work?
A different scenario, I got a board that is a keychain remote working off of 5VDc, when the switch is on, there are two terminals that measures 5VDC. I am trying to trip a small relay, but when the relay is powered with this terminal, the relay does not trip. However, it measures 5VDC, and it does light a LED, what are the possible causes that eventhough the terminals measures 5VDC, that it does not trip a small relay. If it is amps, how do I confirm this is the problem or measure it??
3rd question: Is there a suggested way to drop a 5vdc charger to act like 2XAA batteries? The way I tried above, seems to not work correctly.
Thanks for your help.
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