"Open circuit" logic help
"Open circuit" logic help
(OP)
Howdy! I'm re-designing a circuit and am in need of a way for notification of an open circuit (via a piezo/transducer). Something to indicate the circuit is open. Since the circuit will be in an open state, the piezo must be powered elsewhere somehow. I can't use an ASIC, FPGA, etc. as it is now; it must be accomplished using discrete components to keep the cost low. Any ideas?





RE: "Open circuit" logic help
RE: "Open circuit" logic help
RE: "Open circuit" logic help
The best thing is use your DMM to know the exact value of the resistance. but if you know that value you want as a threshold, a simple comparator circuit will be an accurate way to do it.
RE: "Open circuit" logic help
RE: "Open circuit" logic help