We found this circuit in an old documentation, but the components used offer no difficulty in obtaining it. The CMOS integrated circuits are powered by a 6V supply.
This circuit trips when the input voltage exceeds 30 V. Its base is a DIAC and it can be used to...
MXT1665T-A Family from Microchip Brings the User Experience of Multi-Touch HMI into the VehicleCHANDLER,...
This circuit uses a 555 (according to the diagram) to generate 50 ms tone bursts at a frequency of 1.5...