Over-Voltage Monitors
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Last Updated:
June 02, 2021 01:44 PM |
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Circuits Designed by Dave
Johnson, P.E. : |
MICRO POWER OVER-TEMPERATURE ALARM
The circuit is powered for years by a single 3 volt lithium battery. It sounds an
alarm when the temperature exceeds a certain point. With
some minor changes the circuit could also be configured for an
under temperature (freeze) alarm. The circuit uses a cheap but accurate
thermistor as the temperature sensor.
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Links to electronic circuits, electronic schematics and designs for engineers, hobbyists, students & inventors:
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Nothing now, please check back
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Got Designs?
Please eMail if you want me to link to and/or post your original design. Thanks. |
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Over-Voltage Monitors |