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 three product families with 900 V MOSFETs to work safely up to 450 VAC input:
- InnoSwitch3-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
- LinkSwitch-XT2 offers the lowest component count switcher solution for isolated and non-isolated low power applications up to 10 W
- LinkSwitch-TN2 provides an energy efficient, low power off-line switcher solution for non-issolated buck converters
Smart Meters
| Document Description | Design Ideas | Design Example Reports | Engineering Prototype Reports | Reference Design Kits |
|---|---|---|---|---|
| 17. 5 W Dual Output Embedded Power Supply |  | |||
| 3.8 W Two Output Supply | | |||
| Power Meter (12 W -12 V / 1 A) | | | RDK-91 |
Utility Meters
| Document Description | Design 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 | | |||
| 1 W, Low Cost, Linear Replacement Power Supply | | |||
| 1.2 W Two Output Power Supply with Positive or Negative Outputs | | RDK-138 | ||
| Utility Meter (Buck, 12 V / 80 mA, 3.3 V/70 mA) | | |||
| 0.75 W, Anti-Tampering Energy Meter Power Supply | | |||
| Power Meter (3 W 12 V / 250 mA) | | |||
| Utility Meter (2 W - 6.2 V / 322 mA Clampless) | | | DAK-89 | |
| Utility Meter ( 0.6 W 12 V / 50 mA) | | |||
| Utility Meter (1.44 W 12 V / 120 mA) | |
Industrial Meters
| Document Description | Design 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) | |
900 V Options
| Document Description | Related Product | Design Ideas | Design Example Reports | Reference Design Kits |
|---|---|---|---|---|
| 10 W Dual Output Power Supply | 900 V InnoSwitch3-EP | | ||
| 7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Power Supply | 900 V LinkSwitch-XT2 | | ||
| 1.44 W Non-Isolated Buck Converter | 900 V LinkSwitch-TN2 | |
Product Families Used in These Applications
| IC Product Family | Design Guides | Typical Circuit Configuration | Power/Current Ratings | Description |
|---|---|---|---|---|
| InnoSwitch3™-EP | NA | Flyback | 10 to 45 W | Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V / 900 V MOSFET, Synchronous Rectification and FluxLink Feedback |
| LinkSwitch™-XT2 | NA | Flyback | Up to 9 W | Energy Efficient, Low Power Off-Line Switcher IC With Integrated 725 V / 900 V MOSFET and System Level Protection |
| LinkSwitch™-TN2 | NA | Buck | Up to 360 mA | Highly Energy Efficient Off-line Switcher IC with Integrated 725 V / 900 V MOSFET and System Level Protection |
| InnoSwitch™-EP | NA | Flyback | 15 to 35 W | Off-Line CV/CC Flyback Switcher IC with Integrated MOSFET, Sync-Rect and Feedback |
| LinkSwitch™-CV | | Flyback | Up to 8.5 W | Tight CV, primary side control, capable of exceeding all energy efficiency specifications |
| 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.
