Circuit Ideas I Electronic DIY Projects I Robotics
Circuit Ideas I Electronic DIY Projects I Robotics
I am here with a new project which is Temperature controlled switch with 2 digit display, I have used DS18B20 IC as temperature sensor, CAT4016 IC helps to drive the 2 display and PIC16F1825 micro-controller is heart of the project. Download Hex Code
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I am here with one more electret microphone preamplifier. This circuit uses an op-amp in a trans-impedance amplifier configuration to convert the output current from an electret capsule microphone into an output voltage. The common mode voltage of this circuit is Constant and set to mid-supply eliminating any input–stage cross over distortion, Circuit and description of the project from Texas
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Circuit helps turns ON the switch when temperature reaches to the set point, NTC used as temperature sensor. Circuit built using LM393/LM358, Supply Input 12v DC Watch Video Of This Project
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INVERTING AMPLIFIER SCHEMATIC PCB CALCULATION USING TLV170 Design Description This design inverts the input signal, Vi, and applies a signal gain of –2V/V. The input signal typically comes from a low-impedance source because the input impedance of this circuit is determined by the input resistor, R3. The common-mode voltage of an inverting amplifier is equal to the voltage connected to
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Window Comparator/Voltage Sensitive Switch TLV1701 This circuit utilizes two comparators in parallel to determine if a signal is between two reference voltages. If the signal is within the window, the output is high. If the signal level is outside of the window, the output is low. For this design, the reference voltages are generated from a single supply with voltage
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Heat activated cooling fan controller ( Thermal Activated Cooling Fan Driver Circuit) is a simple project which operates a Brush-Less fan when the temperature in a particular area goes above a set point, when temperature return normal, fan automatically turns off. The project is built using LM358 Op-amp ( Use LM393 instead for good performance) , and LM35 temperature Sensor.
Read moreClap Switch/Sound Activated Switch with Timer Using PIC12F683 Micro-Controller Circuit’s works on 5V DC, Its trigger the relay on every two clap sound, and keep output high for 1 to 4 Seconds depending on jumper settings J1, J2. On board Potentiometer provided for sensitivity adjust. Relay output is NO/NC. On board Power LED and Output LED.
Read moreTwo Channel Audio Signal Mixer Using LM358-BA4560 Op-Amp Supply 5V DC ( LM358) Supply 12V DC (BA4560) Standard Audio Signal Input On Board Preset For Gain Set Header Connector for Inputs, Output & DC Supply
Read moreDC solid state Relay build using optically isolated Mosfet gate driver & high current Mosfet, this relay also provides current feedback as voltage output and fault TTL voltage output when current goes above set point. Current feedback designed around op-amp as signal conditioning which measure the current across low ohm shunt resistor. On board preset (trimmer pot) to adjust the
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