Automatic voltage switch (SMPS < 500W)

The AVS12 kit is an automatic mains selector (110/220V AC) to be used in SMPS < 500 W. It is composed of 2 devices :

The Controller is optimized for low consumption and high security triggering of the triac. When connected to VSS , the mode input activates an additional option. If the main power drops from 220V to 110V, the triac control remains locked to the 220V mode and avoids any high voltage spike when the voltage is restored to 220V. When connected to VDD , the mode input desactivates this option. The TRIAC is specially designed for this application. An optimization between sensitivity and dynamic parameters of the triac gate highly reduces the losses of supply resistor and allows excellent immunity against disturbances.

Key Features

  • CONTROLLER50/60Hz FULL COMPATIBILITYINTEGRATED VOLTAGE REGULATORTRIGGERING PULSE TRAIN OF THE TRIACPARASITIC FILTERLOW POWER CONSUMPTION
  • TRIACHIGH EFFICIENCY AND SAFETY SWITCHINGUNINSULATED PACKAGE : AVS12CBVDRM = ± 600 VIT(RMS) : 12A

电路原理图

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资源

技术文档

产品规格
Description Version Size
DS0798 DS0798: AUTOMATIC VOLTAGE SWITCH (SMPS < 500W) 3.1 271 KB
应用手册
Description Version Size
AN2986 AN2986: AC switch triggering with 3.3 V power supply 1.3 337 KB
AN390 AN390: AVS kit guidelines 6.0 409 KB
AN4993 AN4993: How to implement a SCR or a Triac in a hybride relay application 1.1 991 KB
AN4564 AN4564: Is a positive power supply mandatory for my application, or could a negative output work also? 1.0 384 KB
AN2703 AN2703: Parameter list for SCRs, TRIACs, AC switches, and DIACS 2.5 99 KB
Technical Notes & Articles
Description Version Size
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 5.0 1 MB

出版刊物和宣传资料

选型指南
Description Version Size
Thyristors, Triacs, AC switches and A.S.D™ selection guide 2.0 1 MB

工具和软件

开发工具硬件
Software Development Tools
支持和社区


样片和购买

型号 Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
AVS12CB TO-220AB Tube Active 1.231 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
AVS12CB ActiveTO-220ABIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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