Faszinierend Schematic Vu Led Fotos. I saw in youtube an interesting commercial led vu meter, which imitates the needle movement in analog vu meters and i thought i can make a similar one. You can use any tun. Our ic's output to leds around 1.28v and around 10ma.
Led vu meter:the meter shown in the diagram is based on eight opamps, contained in two type lm324 chips, which function as comparators. They are ideal as power meters on amplifiers, can be used with mixers (including the high quality mixer described in the project pages). Proteus isis circuit 16x16 led matrix schematic. The higher the input signal, the more leds will light. The following image is the scheme diagram of six led stereo vu display circuit which build using dot/bar display driver ic lm3915. The leds are connected via sockets j3 to j12 (only one row leds is shown on the schematic) and i found that it's cheaper to use a 28 pin ic.
This kit builds on a famous lm3916 vu bargraph driver chip from ti/national semiconductor.
There are many other uses for a simple led vu meter. So i searched instructable for a 20 led vu meter or some sort but with no result. If you change led current setting and run from higher supply voltage, keep an eye on power dissipation in the driver. So i decided to make my own. Our ic's output to leds around 1.28v and around 10ma. :lol 40 led vu meter. This kit builds on a famous lm3916 vu bargraph driver chip from ti/national semiconductor. Led vu meter with lm3916. The only i can find only for 20 leds. I show you circuit diagram or schematic diagram 20 levels bar graph led vu meter without using any ic or without integrated circuit.