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Car Thermometer circuit description

2017-01-15 11:07  
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This article describes the car thermometer circuits. The circuit is simple, inexpensive, and effective. As long as Duokanjibian The schematic can master the principles of it. This circuit is for technical exchanges. Car Thermometer is basically the same circuit as the March of the project and some minor changes, the input circuit. This circuit will display the water temperature 1 degree resolution. In order to better enable you to grasp this principle, then we briefly introduce a key component of the circuit: 1N4148 .
The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages.
1N4148 features:
• Hermetically sealed leaded glass SOD27 (DO-35) package
• High switching speed: max. 4 ns
• General application
• Continuous reverse voltage: max. 75 V
• Repetitive peak reverse voltage: max. 75 V
• Repetitive peak forward current: max. 450 mA.


Temperature Gauge

 


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