Simple 5 Band Equalizer

This circuit uses a single chip, IC BA3812L to make 5 band graphic equalizer in audio hi-fi system. BA3812L IC is a 5-point graphic equalizer that has all functions integrated on a single IC. This IC is composed of five tone control circuit and input and output buffer amplifier. BA3812L have low distortion, low noise, and wide dynamic range, and is ideal for a variety aperanti Hi-Fi stereo. He also has a wide operating voltage range (3.5V to 16V), meaning he could be adapted for use on most stereo equipment.

The five center frequencies are independently set using external capacitors, and therefore act as an output stage buffer amplifier and tone control section is a series of its own, it is possible to do fine control over the frequency bandwidth. By using two BA3812Ls, you can create a 10-point graphic equalizer. Great header and pieces can be set by external components.

The recommended power supply of 8V, but this circuit can work well for supply voltage 9V. Limit the maximum voltage is 16V.

The circuit is given in the diagram operates in around 5 frequency bands:
100Hz , 300Hz , 1kHz , 3kHz , 10kHz

Comments

Using the TLP250 Isolated MOSFET Driver Explanation and Example Circuits

I’ve already shown how to drive an N-channel MOSFET (or even an IGBT) in both high-side and low-side configurations in a multitude of ways. I’ve also explained the principles of driving the MOSFETs in these configurations. The dedicated drivers I’ve shown so far are the TC427 and IR2110. Some people have requested me to write up on MOSFET drive using the very popular TLP250. And I’ll explain that here. The TLP250, like any driver, has an input stage, an output stage and a power supply connection. What’s special about the TLP250 is that the TLP250 is an optically isolated driver, meaning that the input and output are “optically isolated”. The isolation is optical – the input stage is an LED and the receiving output stage is light sensitive (think “photodetector”). Before delving any further, let’s look at the pin configuration and the truth table. Fig. 1 - TLP250 Pin Configuration Fig. 2 - TLP250 Truth Table Fig. 1 clearly shows the input LED side and the receiving photodetector as well...

OP AMP INTEGRATOR CALCULATOR

Enter the Input Voltage,Vin: Volts Enter the Frequency, f: Hertz Enter the Input Resistance, Rin: Ohms Enter the Value of Capacitor, C: Farads Output Voltage, Vout: Volts OP AMP based Integrator Tutorial and Design

Block diagram of AM transmitter and receiver with explanation

Block diagram of AM transmitter and receiver with explanation AM Transmitter : Transmitters that transmit AM signals are known as AM transmitters. These transmitters are used in medium wave (MW) and short wave (SW) frequency bands for AM broadcast. The MW band has frequencies between 550 KHz and 1650 KHz, and the SW band has frequencies ranging from 3 MHz to 30 MHz. The two types of AM transmitters that are used based on their transmitting powers are: · High Level · Low Level High level transmitters use high level modulation, and low level transmitters use low level modulation. The choice between the two modulation schemes depends on the transmitting power of the AM transmitter. In broadcast transmitters, where the transmitting power may be of the order of kilowatts, high level modulation is employed. In low power transmitters, where only a few watts of transmitting power are required , low...

Do More

Search This Blog