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The LM2917 IC chip is specifically designed as a Frequency to Voltage Converter. It requires only a few external components for its operation. The datasheet for the LM2917 IC includes several application examples of the Frequency to Voltage Converter....
The TDA9302H is a monolithic integrated circuit housed in a HEPTAWATTTM package. It functions as a high-efficiency power amplifier designed for direct drive vertical deflection coils in television yokes. This component is suitable for use in both color and...
The simple pressure sensor alarm is constructed using a few inexpensive and readily available components. The operation of this circuit is straightforward and self-explanatory. When powered by a 9V compact battery, the active piezo sounder at the output of...
By adjusting the Adjust pin, the output voltage and current can be regulated. A variable resistor (VR) is connected between the Adjust pin and ground to achieve an output voltage of 9 volts to the battery. Resistor R3 limits...
The PLL synthesizer oscillator circuit is a feedback loop consisting of a reference oscillator, phase comparator, loop filter, voltage-controlled oscillator, programmable frequency divider, and various other components. In this circuit, the reference oscillator employs a crystal oscillator (OSC) to...
The main purpose of this design is to address a minor flaw in the widely used Fridge Door Alarm circuit, which has been available on this website since 1999 and has been constructed by many hobbyists. This circuit ceases...
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