I need to find a solution to stop my Arduino controller being corrupted from a gradual falling off of the input voltage. Let me explain the project I am working on..
I have programmed the Arduino micro controller to animate an RGB LED strip light. I have only a 6v ac supply which I have successfully rectified and added a voltage regulator (I have since found out the Arduino has a regulator but this does not matter to my problem). See image 1 & 2.
Everything works OK so long as the voltage supply is constant. However my 5.5v supply (after rectification/regulator) when turning off is a gradual fall in voltage and not instantaneous, like when say you unplug a USB supply from your laptop to the Arduino.
I need to some how be able to switch off the supply voltage in a single moment when it drops below a given voltage value can anyone help me? Also I cannot use a voltage comparator as this requires another power source as a reference which I'm not allowed to have. Suggestions
I have programmed the Arduino micro controller to animate an RGB LED strip light. I have only a 6v ac supply which I have successfully rectified and added a voltage regulator (I have since found out the Arduino has a regulator but this does not matter to my problem). See image 1 & 2.
Everything works OK so long as the voltage supply is constant. However my 5.5v supply (after rectification/regulator) when turning off is a gradual fall in voltage and not instantaneous, like when say you unplug a USB supply from your laptop to the Arduino.
I need to some how be able to switch off the supply voltage in a single moment when it drops below a given voltage value can anyone help me? Also I cannot use a voltage comparator as this requires another power source as a reference which I'm not allowed to have. Suggestions
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