intercom schematic

The MAX1496 is an analog-to-digital converter (ADC) that incorporates LED drivers, allowing for the construction of a 3 1/2 digit voltmeter using a minimal number of components. This device features both external and internal voltage reference options, along with...

This circuit supplies electric power from a backup battery when AC power is interrupted, ensuring a stable 5V power supply for sensitive devices such as microcontrollers and logic circuits. The capacitor C1 should have a capacitance greater than 220...

The circuit consists of separate amplifiers, one for each station, rather than a single amplifier with a time-sharing arrangement. U1 and U2 are low-voltage audio amplifiers, each operating as independent units with switches at either station controlling which will...

Most mobile chargers lack current and voltage regulation, as well as short-circuit protection. These chargers typically provide unregulated 6-12V DC for charging battery packs, which generally have a rating of 3.6V and 650mAh. To enhance battery life, it is...

The following circuit presents a Mini Audio Amplifier Circuit Schematic Diagram. Features include a power consumption of less than 3mA, a small output, and the use of a push-pull configuration. The Mini Audio Amplifier Circuit is designed to amplify low-level...

This version of the Link is intended for users who require an affordable and reliable intercom system without access to an external telephone line. It is suitable for environments such as preschools, hobby farms, or small workshops and factories,...