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  1. Scratch - Imagine, Program, Share

    Scratch is a free programming language and online community where you can create your own interactive stories, games, and animations.

  2. SCR Online Clearance System | Child Protective Services | Office …

    The Online Clearance System allows designated, authorized users access to electronically submit database-check requests to the SCR, thereby replacing the mailing of the paper LDSS-3370 …

  3. Silicon controlled rectifier - Wikipedia

    A silicon controlled rectifier or semiconductor controlled rectifier (SCR) is a four-layer solid-state current -controlling device. The name "silicon controlled rectifier" is General Electric 's trade …

  4. Silicon Controlled Rectifier (SCR) | Symbol, Working, Applications

    Sep 17, 2024 · In this tutorial, we will learn about Silicon Controlled Rectifier (SCR). We will learn its symbol, structure, working, Turn ON and Turn OFF methods and some applications. The …

  5. Silicon Controlled Rectifier - GeeksforGeeks

    Jul 23, 2025 · SCR (Silicon Controlled Rectifier): The complete name of the Device, addressing a four-layer, three-terminal semiconductor device that conducts current in one direction only.

  6. What is SCR (Silicon Controlled Rectifier), How it works & Different ...

    Jan 10, 2020 · SCRs are constructed from silicon and are most commonly used for converting AC current to DC current (rectification), hence the name Silicon controlled rectifier. They are also …

  7. SCR (Silicon-Controlled Rectifier) - STMicroelectronics

    Featuring immunity to surges and transients in static states and commutations, ST silicon-controlled rectifiers (SCR), or thyristors, are ideal for single- and three-phase power line …

  8. Silicon Controlled Rectifier (SCR) - Definition, Construction, …

    There are three modes of operation for a Silicon Controlled Rectifier (SCR), depending upon the biasing given to it. In this mode of operation, the positive voltage (+) is given to anode A (+), …

  9. How an SCR Works – Simple Explanation with Circuit Examples

    The SCR (Silicon Controlled Rectifier) is a type of electronic switch used in power control. This guide explains how it works and shows simple SCR circuits for beginners.

  10. Home | Child Protective Services | Office of Children and Family …

    The New York State Office of Children and Family Services maintains the Statewide Central Register of Child Abuse and Maltreatment (SCR, also known as the “hotline”) for reports made …