Reference Design for Line AC Voltage Generation From Low-Voltage DC Source for Sensor Excitation

(ACTIVE) TIDA-01426

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Key Document

Description

This reference design demonstrates a method for designers to achieve high-voltage signals that can be used for flame detection using discrete components. The reference design is built with low BOM-cost and small solution size in mind. By using push-pull converter topology, it is possible to achieve a wide input range and low start-up time.

Features
  • Universal input range of 10 to 36V
  • 120V, 60Hz output with 4% THD
  • 56ms startup time at 10V
  • 5% output accuracy
  • Output power up to 1W
  • Low footprint and BOM cost

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19538Q3A  100V N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy Not Available
OPA348  1MHz, 45uA, RRIO, Single Op Amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TL431  2% Accuracy Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available
TL494  PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19538Q3A VSONP (DNH)| 8 Download
OPA348 Download Download
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TL431 Download Download
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TL494 Download Download
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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2238 09 Aug 2017 40
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 171 09 Aug 2017 14
ZIP 770 09 Aug 2017 33
PDF 755 09 Aug 2017 24
PDF 182 09 Aug 2017 18
PDF 81 09 Aug 2017 20
PDF 465 09 Aug 2017 113

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