Design, analyzer circuits software Solve Elect
With Solve Elect you can:
- design and analyze electronic circuits working in cc
- obtain formulas and values for voltage and current
- delineate graphics
- obtain equivalent circuits
- read integrated documentation
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Intercom circuit, intercom schematic
In this intercom schematic, the 8 ohm speakers is used as microphone and listening speaker.
The 10K potentiometer controls volume and the total gain can be set with de 5k R. Use a double switch with 2 positions so when one is used to talk and the other one to listen. The switch will be in the house.
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Metal Detector DIY schematic
The heart of this metal detector circuit is CS209A. The metal detector it is build with one coil of 100uH. CS209A has one oscillator wich forms an LC circuit, the inductance of the coil will change when it is near metal objects.
LED 1 will light and the buzzer turns on when the coil is changing inductance. The setup is easy, VR1 is adjusted ( away from any metal objects ) so that LED 1 will light and the buzzor sounds on, and then VR1 will be trimmed until led and buzzer are off.
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