Optical obstacle switch with LM567
This is a simple toy that has many applications. Any object that breaks a light beam will trigger a relay to on condition for a period of time. If direct sunlight falls on this...
Universal Signal Conditioning Circuit
Here is a practical application of the dual differential amp. This circuit is for DC or slow moving DC like Strain Gauge and transducer signals. The RC and Zeners are for protection and clamping....
16 Channel Analog Multiplexer
This circuit is built around the chip CD4067, now called 74HC4067, it works like a single pole 16 throw rotary switch that can be controlled digitally. Clamping protection diodes are built in. Use resistors...
LM331 A to D with Mux Input Switch
This is the full circuit of a V/F convertor interface for 80C31 SBC. The Mux is configured for selecting between two inputs. It uses analog switch 4066. LF353 along with LM331 form the VCO,...
