This is a 1.2 – 12 V, max 1A power supply with a low voltage indicator LED. The indicator part incluedes three diodes and one LED. For example you are charging a battery, you can observe the charge status at that moment. Another advantage of this circuit, when the drawn current exceeds 1A (practically 0.85A), the current protector in LM317 intervens and LED indicator warns you about the very low output voltage.
Read More Source:http://www.circuit-projects.com/12-12v-/-1a-low-voltage-led-indicator-power-supply-by-lm317.html
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This entry was posted on Thursday, January 24th, 2008 at 7:10 pm and is filed under LM317, Variable Regulator.
