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

The InnoSwitch-EP family offers also a 900 V MOSFET to work safely up to 450 VAC input. It also has an integrated synchronous rectification controller to maximize efficiency. It is ideal for power supplies for AMR that require more than 10 W power.

The LinkSwith-4 family is an emitter switch/base external BJT driver. Emitter Switch technique minimizes losses in high voltage application. It can be very cost effective solution in low power applications (<10 W) when a high voltage input (>350 VAC) is required.

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 icon RDK-91

 

Utility Meters

Document DescriptionDesign
Ideas
Design
Example
Reports
Engineering
Prototype
Reports
Reference
Design
Kits
17. 5 W Dual Output Embedded Power Supply      
2.5 W Emergency Lighting Power Supply pdf icon      
1 W, Low Cost, Linear Replacement Power Supply pdf 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 Supply pdf icon      
Power Meter (3 W 12 V / 250 mA)   pdf icon    
Utility Meter (2 W - 6.2 V / 322 mA Clampless) pdf icon   pdf icon DAK-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™-EP NA Flyback 15 to 35 W Off-Line CV/CC Flyback Switcher IC with Integrated MOSFET, Sync-Rect and Feedback
LinkSwitch™-CV Product family application note. Flyback Up to 8.5 W Tight CV, primary side control, capable of exceeding all energy efficiency specifications
LinkSwitch™-TN2 NA Buck Up to 360 mA Highly Energy Efficient Off-line Switcher IC with Integrated System Level Protection
LinkSwitch™-XT2 NA Flyback Up to 9 W Energy Efficient, Low Power Off-Line Switcher IC With Integrated System Level Protection
TinySwitch™-III NA Flyback Up to 28.5 W Improved 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.