Passives

Passive components are electrical components that do not require an external power source to operate and cannot amplify or generate electrical energy. Instead, they consume, store, or dissipate energy within an electrical circuit. Passive components are fundamental in controlling and shaping electrical signals in various applications.

Types of Passive Components

• Resistors: Devices that oppose the flow of electric current, used to control voltage and current levels within a circuit.
• Capacitors: Components that store energy in an electric field, used for filtering, timing, and energy storage applications.
• Inductors: Devices that store energy in a magnetic field, commonly used in filtering, tuning circuits, and energy storage.
• Transformers: Components that transfer electrical energy between two or more circuits through electromagnetic induction, used to step up or step down voltage levels.
• Ferrites and Magnetic Cores: Materials used in inductors and transformers to enhance their magnetic properties.
• Crystal Oscillators (Passive Crystals): Components that use mechanical resonance of vibrating crystals to create precise frequency references.

These components are essential building blocks in electronic circuits, performing functions such as filtering, signal coupling, voltage division, and energy storage without the need for active control or amplification.