Alarm Power Supply

Description: This Power Supply is suitable for the Modular Burglar Alarm. However, it has other applications. It is designed to provide an output of 12-volts, with a current of up to 1-amp. In the event of mains failure, the back-up battery takes over automatically. When the mains is restored, the battery recharges. Use a genuine alarm type back-up battery. They are maintenance-free, and their terminals can be held at 13v8 for many years, with no ill effects.

The described power supply system is a critical component for ensuring the continuous operation of a Modular Burglar Alarm system, as well as other electronic devices requiring a stable 12V supply. The power supply unit (PSU) is engineered to deliver a regulated output voltage of 12 volts, capable of supplying a maximum current of 1 ampere. This output specification is essential for powering alarm systems, which often have specific voltage and current requirements.

A key feature of this power supply is its automatic transition to a backup battery in the event of mains power failure. This functionality is crucial for maintaining system integrity during power outages, ensuring that the alarm system remains operational, thereby providing continuous security coverage. The automatic switch-over mechanism is typically implemented using a relay or a similar electronic switching device, which detects the loss of mains power and connects the backup battery to the load.

Upon restoration of mains power, the system is designed to initiate a charging cycle for the backup battery. The charging circuit is configured to safely recharge the battery while preventing overcharging, which could lead to battery damage. It is advisable to use a genuine alarm-type backup battery, as these are specifically designed for such applications, providing reliability and longevity. Maintenance-free characteristics of these batteries are beneficial for ease of use, as they do not require regular electrolyte checks or refills.

The output voltage of the backup battery is typically rated at 13.8 volts, which allows for a slight voltage drop under load while still providing adequate voltage to the alarm system. The design ensures that the terminals of the backup battery can maintain this voltage level for extended periods without adverse effects, contributing to the overall reliability and lifespan of the power supply system.

In summary, this power supply configuration is well-suited for alarm systems, providing essential features such as regulated output, automatic backup functionality, and safe battery management, ensuring that critical security systems remain operational under various conditions.This Power Supply is suitable for the Modular Burglar Alarm. However, it has other applications. It is designed to provide an output of 12-volts, with a current of up to 1-amp. In the event of mains failure, the back-up battery takes over automatically. When the mains is restored, the battery recharges. Use a genuine alarm type back-up battery. They are maintenance-free, and their terminals can be held at 13v8 for many years, with no ill effects.