RFID Meter Circuit Schematic

This circuit emits an intermittent beep or flashes an LED when the water level in a container reaches a predetermined height. It is designed to be mounted on top of the container, such as a plastic tank, using two...

During a Digital Projects Lab, the professor suggested incorporating more circuit-level work into a project. To achieve this, a preamplifier was designed, which included an infrared (IR) remote control to replace a previously built version. The earlier preamplifier functioned...

The proposed capacitance is a very powerful assembly to measure in 7 ranges capacitors of 1 pF to 999 uF, with an excellent precision of about 10^-3. The range change is fully automatic. The display shows 3 digits with...

The MAX4100/4101 operational amplifiers utilize a capacitive load drive circuit with an isolation resistor Rs. The MAX4100 and MAX4101 can handle maximum capacitive loads of 5pF and 20pF, respectively, but are susceptible to overshoot and ringing oscillations. To mitigate...

A very useful talk-over circuit that can be utilized in radio stations, clubs, or any location where speaking over music is desired without the need for adjusting a potentiometer. The talk-over circuit is designed to automatically reduce the volume of...

There are two resonant circuits in a double-tuned amplifier circuit, which consists of transformers T1 and T2 with primary and secondary coils that include parallel resonance capacitors. This circuit exhibits a resonance function and can be classified based on...