Transformer 220V 12-0-12V (2A)

Specifications

1. Primary Voltage:
   • The transformer is intended to be connected to a 220V AC mains supply, which is standard in many countries around the world.
2. Secondary Voltage:
   • The transformer provides three output terminals: +12V, 0V (center tap), and -12V. This configuration is often referred to as a center-tapped transformer, allowing it to generate both positive and negative voltages with respect to the center tap (0V).
3. Current Rating:
   • It has a maximum current rating of 2A, which means it can safely supply up to 2 amperes of current from each of the +12V and -12V outputs simultaneously.
4. Winding Configuration:
   • The transformer consists of three windings: a primary winding for the high voltage side and two secondary windings for the +12V and -12V outputs. The center tap of the secondary winding serves as the ground reference (0V).
5. Core Material:
   • Typically constructed with a laminated silicon steel core or ferrite materials, designed to minimize energy losses and enhance magnetic efficiency.
6. Physical Design:
   • The transformer can come in various designs, including encapsulated or open-frame types, depending on the application and requirements for electrical insulation and safety.
7. Isolation and Safety:
   • The transformer provides electrical isolation between the primary and secondary windings, ensuring safety by preventing electrical shocks from the high voltage supply.

Applications

• Audio Amplifiers: Commonly used in audio amplification circuits that require dual power supplies, providing the necessary +12V and -12V for operational amplifiers.
• Linear Power Supply: Suitable for building linear power supplies that require symmetrical voltage outputs for various electronic devices and components.
• Operational Amplifier Circuits: Often utilized in circuits that employ operational amplifiers (op-amps), which benefit from dual supply voltages for proper operation.
• Hobby and DIY Electronics Projects: Ideal for electronics enthusiasts working on projects that require dual voltage supplies and higher current capabilities.
• Signal Processing Equipment: Used in various electronic equipment that require a dual supply voltage for signal processing applications.

Important Considerations

• Load Limitations: It is essential to ensure that the total load drawn from the +12V and -12V outputs does not exceed 2A to prevent overheating and potential damage.
• Thermal Management: Proper cooling and ventilation should be provided to dissipate heat generated during operation, especially when operating at or near the maximum rating.
• Voltage Regulation: For applications requiring stable output voltages, additional voltage regulation components may be necessary, as the output may vary depending on load conditions.
• Safety Standards: Ensure compliance with local electrical safety standards and regulations, particularly if the transformer will be part of a commercially sold product.

This transformer is highly versatile and commonly used in various electronic applications where dual power supply requirements are necessary, providing a robust solution for powering a wide range of devices and circuits.