Single supply preamp and active crossover

[Tesladude]

Hi I am making a preamp and active crossover using the lm833n dual op-amp.
I have already done a project similar to this one and both the preamp circuit and crossover circuit worked beutifuly,
although that project used a split supply and for my car audio I need a single supply.

I have already tried a single supply preamp circuit useing just the basic single supply opp amp circuit which consists of the voltage divider with a capacitor across the grounded resistor, just like the single supply circuits you can find on the tda2040 or tda2050 datasheets.
It worked fine.

I am using the high pass crossover circuit design from the datasheet.
But I am not 100% sure on how the crossover single supply circuit ia sopposed to look.

I figure it is essencially the same as the single supply op amp circuit with the imput impedence resistor connected strait to the center of the voltage divider and with a capacitor on the output.

is it the same?

 

[Greg Bernhardt]

I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?

 

[thankz]

http://sound.westhost.com/project123.htm

that should be something like what your looking for, change the RC values to match your frequency.

 

[jim hardy]

I figure it is essencially the same as the single supply op amp circuit with the imput impedence resistor connected strait to the center of the voltage divider and with a capacitor on the output.

i think you have the right idea, but your description is so vague I'm afraid to say much.
it is not clear to me which of the active crossover circuits you want to use - the TDA2040 shows bridged woofer and single tweeter. For single amplifier on single supply you need to feed the speaker through a large capacitor.

Maybe you'd post a link to the circuit you want to adapt for single supply ?

 

[alphy]

I would like to commend you on your previous successful project and your determination to adapt it to your car audio needs. It is great to see that you are taking the time to understand the circuit design and make necessary modifications for a single supply.

Regarding your question about the crossover single supply circuit, I would suggest referring to the datasheet of the LM833N op-amp for specific information on the circuit design. Generally, a single supply crossover circuit would be similar to a single supply op-amp circuit, but with additional components such as capacitors and resistors to achieve the desired frequency response. It is important to carefully choose the values of these components to ensure proper operation of the crossover.

I would also recommend consulting with an experienced engineer or conducting further research to ensure the accuracy and effectiveness of your circuit design. Best of luck with your project!