spyghost
Junior Member level 2
automotive lc filter
Hi,
I am planning on building a filter/regulator in preparation for my project car. I am still in its first stage, which is constructing a filter/regulator, or voltage stabilizer for my car's electronics.
There are already a lot who have added a set of parallel capacitors between the alternator/battery to ground terminals and according to them, the effect is good.
As much as possible I wouldn't like the additional complexity of a buck-boost converter for this application, but if it is required, then I'll be putting it into place.
Here is the design... I plan on modifying the simple capacitor design by adding a series inductor. However, I have two designs in mind.
The first design involves a loop in the (+) and GND side using a single core that will be paralled into a capacitor.
The second design involves a simple inductor placed on the (+) side, which is then series to a capacitor. The rest of the car circuit is paralled with the capacitor.
I would like to get your opinions in the effectivity of this design and its possible effects. Are there other factors that I should have considered?
I also came across this page: at #12
If this is the case, does that mean that the inductor would only yield to nothing?
Hi,
I am planning on building a filter/regulator in preparation for my project car. I am still in its first stage, which is constructing a filter/regulator, or voltage stabilizer for my car's electronics.
There are already a lot who have added a set of parallel capacitors between the alternator/battery to ground terminals and according to them, the effect is good.
As much as possible I wouldn't like the additional complexity of a buck-boost converter for this application, but if it is required, then I'll be putting it into place.
Here is the design... I plan on modifying the simple capacitor design by adding a series inductor. However, I have two designs in mind.
The first design involves a loop in the (+) and GND side using a single core that will be paralled into a capacitor.
The second design involves a simple inductor placed on the (+) side, which is then series to a capacitor. The rest of the car circuit is paralled with the capacitor.
I would like to get your opinions in the effectivity of this design and its possible effects. Are there other factors that I should have considered?
I also came across this page: at #12
Using an LC circuit as a power supply filter can actually multiply the power supply noise at the filter's resonant frequency. Use inductor with low Q to overcome this.
If this is the case, does that mean that the inductor would only yield to nothing?