Position: Index > Led Circuit >

Led bar-dot level meter

2014-12-20 15:14  
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.


A simple level of power meter can be arranged to give a bar or dot display for a hi-fi system. Use green LEDs for 0 to 7; yellow for 8 and red for 9 to indicate peak power. The gain control is provided to enable calibration on the equipment with which the unit is used
Led bar-dot level meter

Because the unit draws some 200 mA, a power supply is advisable instead of running the unit from batteries.



Reprinted Url Of This Article:
http://www.next.gr/light-laser-led/led-circuits/led-bar-dot-level-meter-l12680.html