Position: Index > Led Circuit >

1.2 - 12V / 1A Low Voltage LED Indicator Power Supply with L

2014-12-20 14:47  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.
1.2 - 12V / 1A Low Voltage LED Indicator Power Supply with LM317

 

1.2 - 12V / 1A Low Voltage LED Indicator Power Supply with LM317

 


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. Be careful while choosing the transformer. Most of the products are specified as 10VA but their outputs are not as said. Another good property of this circuit is the mains noise does not pass to the DC part.


 
 


 



Reprinted Url Of This Article:
http://electronics-diy.com/electronic_schematic.php?id=593