Utility/Smart Meters

Utility/Smart Meters

Power Integrations offers a broad range of highly integrated, high-voltage ICs for power supplies for meter and automatic meter reading (ARM). Each IC includes a high voltage power MOSFET, combined with control and protection circuitry, in a single chip.

Features include:

  • Current limiting and thermal shutdown with automatic fault recovery capability to improve reliability
  • Frequency jittering to reduce EMI
  • EcoSmart™ technology to maximize efficiency over load change

For utility meters that require a 1.9 safety factor versus line voltage, Power Integrations has two product families with 900 V MOSFETs to work safely up to 450 VAC input:

  • The LinkSwitch-XT2 offers the lowest component count switcher solution for isolated and non-isolated low power applications up to 10 W.
  • The InnoSwitch-EP has an integrated synchronous rectification controller to maximize efficiency. It is ideal for power supplies for AMR that require more than 10 W power.

Smart Meters

Document DescriptionDesign
Ideas
Design
Example
Reports
Engineering
Prototype
Reports
Reference
Design
Kits
17. 5 W Dual Output Embedded Power Supply   
3.8 W Two Output Supply pdf icon  
Power Meter (12 W -12 V / 1 A)pdf icon pdf iconRDK-91

 

Utility Meters

Document DescriptionDesign
Ideas
Design
Example
Reports
Engineering
Prototype
Reports
Reference
Design
Kits
7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Power Supply using 900 V LinkSwitch-XT2
17. 5 W Dual Output Embedded Power Supply   
2.5 W Emergency Lighting Power Supplypdf icon   
1 W, Low Cost, Linear Replacement Power Supplypdf icon   
1.2 W Two Output Power Supply with Positive or Negative Outputs pdf icon RDK-138
Utility Meter (Buck, 12 V / 80 mA, 3.3 V/70 mA)pdf icon   
0.75 W, Anti-Tampering Energy Meter Power Supplypdf icon   
Power Meter (3 W 12 V / 250 mA) pdf icon  
Utility Meter (2 W - 6.2 V / 322 mA Clampless)pdf icon pdf iconDAK-89
Utility Meter ( 0.6 W 12 V / 50 mA)pdf icon   
Utility Meter (1.44 W 12 V / 120 mA)  pdf icon 

 

Industrial Meters

Document DescriptionDesign
Ideas
Design
Example
Reports
Engineering
Prototype
Reports
Reference
Design
Kits
17. 5 W Dual Output Embedded Power Supply   
Three Phase Utility Meter Ultra-Wide Input (3 W 12 V / 250 mA)pdf icon   

 

Product Families Used in These Applications

IC Product
Family
Design GuidesTypical Circuit
Configuration
Power/Current
Ratings
Description
InnoSwitch™-EPNAFlyback15 to 35 WOff-Line CV/CC Flyback Switcher IC with Integrated MOSFET, Sync-Rect and Feedback
LinkSwitch™-CVProduct family application note.FlybackUp to 8.5 WTight CV, primary side control, capable of exceeding all energy efficiency specifications
LinkSwitch™-TN2NABuckUp to 360 mAHighly Energy Efficient Off-line Switcher IC with Integrated System Level Protection
LinkSwitch™-XT2NAFlybackUp to 9 WEnergy Efficient, Low Power Off-Line Switcher IC With Integrated System Level Protection
TinySwitch™-IIINAFlybackUp to 28.5 WImproved design flexibility. Reduced input capacitance and transformer size due to time extension and I2f ratings.

 

Related Design Support Documents

General Design Information
Product Datasheets
Metering Products Selector Guide
AC-DC Selector Guide
Package Information

 

Contact your local Power Integrations Sales Representative or Distributor for assistance.