Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Buck Converter - Additional filtering ?

Status
Not open for further replies.

Wp100

Well-Known Member
Hi,

Am using the Mini-360 buck converters to provide the 5v for an arduino based project with ds18b20 sensors and driving 5v and 12v fans .
Using analogue only for a simple 4 switch resistor network

Do these little devices need any additional input or output capacitors / filtering ?

Thanks
 
Hi,

Am using the Mini-360 buck converters to provide the 5v for an arduino based project with ds18b20 sensors and driving 5v and 12v fans .
Using analogue only for a simple 4 switch resistor network

Do these little devices need any additional input or output capacitors / filtering ?

Thanks


Hi,

Only if your application needs it.

A typical post filter for any switcher is a small inductor maybe 2uH and a capacitor. The inductor should have low ESR.
An important point is that the feedback location point does not change even after adding the post filter.
 
Good grounding and ground scheme is also important in minimizing noise.
It should be build with a copper ground plane if possible.
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top