Understand the difference between passive components and active components

　　In electronic engineering and circuit design, “active component” and “passive component” are two basic concepts. They play different roles in electronic circuits and have obvious differences. This paper will compare these two types of components in detail to help you better understand their functions and applications.In addition to these aspects,LM324ADThe performance in other aspects is also relatively good, which has attracted everyone’s attention and research. https://www.asourcingelectronics.com/product/detail/store/6437698/lm324ad.html

　　

　　Active component

　　

　　Active components, also known as active components, refer to those electronic components that can provide gain or actively amplify signals. Active components usually need external power supply to drive them to work, and can adjust and control electrical signals. Common active components include:

　　

　　Triode: used for signal amplification and switch control.

　　

　　Integrated circuit (IC): It is composed of multiple electronic components and performs specific functions, such as operational amplifier and microprocessor.

　　

　　Field effect transistor (FET): used for amplification and switching operation, especially in high-frequency applications.

　　

　　Photoelectric components: such as light emitting diodes (LEDs) and laser diodes, which can convert electric energy into light energy.

　　

　　Active components play a key role in circuits and can process and amplify signals, so they are widely used in communication, audio and control systems.

　　

　　passive components

　　

　　Passive components refer to those components that cannot actively provide gain or amplify signals. These components can only perform basic adjustment and storage functions on current and voltage, and do not need external power supply to operate. Common passive components include:

　　

　　Resistance: Restrict current flow and voltage division.

　　

　　Capacitance: storing electric energy, smoothing voltage fluctuation, filtering, coupling signals, etc.

　　

　　Inductor: It stores magnetic energy and generates back electromotive force when the current changes. It is mainly used for filtering and oscillating circuits.

　　

　　Transformer: used to change the voltage and current of alternating current.

　　

　　Passive components are responsible for filtering, adjusting and storing basic signals in the circuit, and are often used for power management and signal processing of various electronic devices.