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That's what "LM3915" on the circuit diagram means.schip666! said:It would of course help to know the chip number or whatever...
AlephZero said:That's what "LM3915" on the circuit diagram means.
What specifically don't you understand?
SammHunka said:Basically i just need help understanding what the reference dc voltage connected to the top LED is for, what the variable resistor is for, and basically how the overall circuit works (meaning how the output is created through the lm3915). sorry about the mix up!
A LED Audio VU meter circuit is an electronic circuit that detects and measures the audio signal level and displays it using a series of LEDs. It is commonly used in audio equipment such as amplifiers, mixers, and music players to provide a visual representation of the audio signal's strength.
The circuit works by converting the audio signal from the input source into an electrical signal, which is then amplified and filtered. The filtered signal is then used to control the brightness of the LEDs, with the brightness increasing as the audio signal's strength increases.
The basic components needed for a LED Audio VU meter circuit include resistors, capacitors, transistors, LEDs, and a power source. Additional components such as op-amps, diodes, and potentiometers may also be used depending on the specific design.
A LED Audio VU meter circuit is commonly used in audio equipment to provide a visual representation of the audio signal's strength. It can also be used in recording studios and live performances to monitor and adjust audio levels. Additionally, it can be used in DIY projects for audio visualization or as a fun electronic display.
Yes, there are various types of LED Audio VU meter circuits, including bar graph, dot matrix, and dot/bar hybrid designs. Some circuits may also incorporate features such as peak hold, adjustable sensitivity, and different color LEDs. The specific design and components used may vary based on the desired functionality and application.