| ??? 09/01/03 15:41 Read: times |
#53802 - RE: Cheap Low Battery Detector using opamps? Responding to: ???'s previous message |
o~ so can I connect series of diodes to reduce the voltage on the non-inverting input of the 339
(maybe 5-7x0.7=0.1v) and compare this voltage to Gnd, when Vcc lower then 0.49V, the comparator output a "0"? Can this work? VCC + VCC ------------------ + - | | ^ | | | | .-. | | | - | | | ^ || '-' | --------|- | - | | >--------- ^ | -----|+/ | | | |/| - | | | ^ | | | | | | | - ----------| ^ === | | GND | - | ^ | | | - | ^ | | | ----------| Stanley |
