Electret Capsule Micro-Phone Pre-Amplifier Using TLV6741 Op-Amp

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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INVERTING AMPLIFIER SCHEMATIC PCB USING TLV170

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

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 Circuit Using LM393-LM358 & LM35 Temperature Sensor

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.

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Clap Switch/Sound Activated Switch with Timer Using PIC12F683 Micro-Controller

Clap 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.    

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DC Solid State Relay Using Mosfet & Optically Isolated Gate Driver With Current Feedback & Fault Output

DC 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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