Can you help me with this circuit

K

kushal_1206

New Member

• May 14, 2008

• #1

I want to know how this person has designed the values of the various resistors used
http://www.easytreasure.co.uk/bfo.htm
THANKS in advance!!!

 

blueroomelectronics

Well-Known Member

• May 14, 2008

• #2

Not sure what you need to know, the values are labeled on the schematic.

 

Gayan Soyza

Active Member

• May 14, 2008

• #3

I don't make that circuit anymore. I'll use a dedicated chip that design for that.

Ex: TDA0161 - PROXIMITY DETECTOR

The circuit is in the data sheet.