TIDA-00229

Self or Dual-Powered Supply for Protection Relay, MCCBs & ACBs Ref Design

TIDA-00229

Design files

Overview

This power supply solution for Protection Relays & MCCBs handles both the current input from a Current Transformer (CT) or input from an Auxillary (Aux) source. The "self-powered" capability comes from being able to harness the power available in the grid through the CT. The flexibility of this solution's "dual-power" input comes from the ability to also handle the Aux input - which is often a battery source.

Features
  • Higher shunt regulation voltage reduces power loss and improves efficiency
  • Provides option for customer to use a CT with lower VA to reduce size of the product/transformer
  • Excellent load transient performance and very sharp turn-on characteristic
  • Simple and cost-effective electrical surge-protection circuitry for a wide range of applications

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU304.PDF (1903 K)

Reference design overview and verified performance test data

TIDR841.PDF (370 K)

Detailed schematic diagram for design layout and components

TIDR842.PDF (107 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDR843.ZIP (1524 K)

Files used for 3D models or 2D drawings of IC components

TIDC499.ZIP (819 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Comparators

LM293Dual differential comparator, industrial grade

Data sheet document-pdfAcrobat PDF open-in-new HTML
Isolated DC/DC converters & modules

LM50177.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Design guide Self/Dual-Powered (Current or Auxiliary DC) Supply for MCCB/ACB/Protection Relay Apr. 28, 2014
Technical article What are the experts saying about TI's reference design for Self / Dual-Powered Supply for Relays and Circuit Breakers? Sep. 25, 2014

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos