Browse Definitions :
Definition

saturation

Saturation is the fully conducting state in a semiconductor junction. The term is used especially in applications involving diodes and bipolar transistor s.

As the forward bias in a semiconductor P-N junction increases, the current through the junction also increases, up to a certain point. When the bias is increased beyond that point (called the saturation point), no further increase in the current occurs. A bipolar transistor becomes saturated when the base-emitter current reaches a maximum under conditions of changing bias. In the characteristic curve (current versus forward bias) of an amplifying or switching device, saturation is indicated by a leveling off of the curve as the forward bias increases.

In a ferromagnetic substance such as laminated or powdered iron, saturation is a condition in which an increase in magnetizing force fails to produce an increase in the magnetic flux density. When the magnetizing force is small, the flux density increases as the magnetizing force increases. But there is a limit to the flux density that can be obtained in a ferromagnetic material. When this limit is reached, the material is said to be at its saturation point. Magnetic saturation is usually undesirable in electronic circuits that use iron-core inductors or transformers.

This was last updated in September 2005
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • What is cybersecurity?

    Cybersecurity is the protection of internet-connected systems such as hardware, software and data from cyberthreats.

  • private key

    A private key, also known as a secret key, is a variable in cryptography that is used with an algorithm to encrypt and decrypt ...

  • DOS (disk operating system)

    A DOS, or disk operating system, is an operating system that runs from a disk drive. The term can also refer to a particular ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • RAID 6

    RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID ...

  • RAM (Random Access Memory)

    RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data ...

  • NOR flash memory

    NOR flash memory is one of two types of non-volatile storage technologies.

Close