reg#1 El REGULADOR de tensión

Understanding Voltage Regulators

Introduction to Voltage Regulators

• The speaker introduces voltage regulators, emphasizing their importance in managing electrical flow and maintaining balance.

• Voltage regulators are described as devices that "kill noise," which is crucial for ensuring stable performance in electronic circuits.

Types of Voltage Regulators

• The discussion highlights various families of voltage regulators, particularly the 78 series, which provides a fixed output of 5 volts.

• The speaker mentions older technologies used before modern regulators, indicating how they managed load variations without regulation.

Functionality and Specifications

• It is explained that input voltages must exceed certain thresholds (e.g., minimum 7 volts) for proper regulator function; otherwise, the device may not operate correctly.

• The importance of providing adequate input voltage (21 or 20 volts for an 18-volt output) is stressed to ensure reliable operation.

Negative Voltage Regulation

• A brief overview of negative voltage regulators from the 79 family is provided, explaining their configuration and functionality in producing negative outputs.

Symmetrical Power Supplies

• The concept of symmetrical power supplies is introduced, detailing how they can be created using transformers with dual secondary windings to achieve balanced positive and negative outputs.