Single-phase energy metering ICs

Power Electronics / Power Management

8 August 2007 Power Electronics / Power Management

The STPM1x family from STMicroelectronics is a series of energy-metering ICs that incorporate all of the core circuitry necessary to implement a complete meter system, without requiring any other active component. By measuring active energy as pulse frequency output and featuring fast digital calibration, these ICs provide electronic meter manufacturers with a complete, cost-effective series of power-metering chips specifically designed for low-end applications. Fully compliant with specifications for single-phase, class 0.5 static meters, these devices provide fast and easy digital calibration at only one point over the whole current range, which allows a reduction in manufacturing costs when compared to hardware calibration made using a resistor network. The mixed-signal IC is designed for effective measurement of active energy in a power-line system using a wide variety of current sensors such as shunts, current transformers, and Rogowsky coils.

Analog blocks within the STPM1x include preamplifiers for signal conditioning, analog-to-digital converters, and low-drop voltage regulators to supply the circuitry. In the digital part of the device, the hardwired digital signal processor (DSP) uses innovative, ripple-free computation algorithms to calculate the amount of consumed active energy, thus reducing the meter's calibration time.

Share this article:

Solving South African power problems with locally built intelligence
Editor's Choice Power Electronics / Power Management
Smart metering infrastructure in South Africa remains patchy. The rollout has been slow, coverage is inconsistent, and for the most part, granular per-unit measurement simply does not exist.

Read more...

Wide range power module
Power Electronics / Power Management
The latest DC-DC modules from Würth Elektronik are characterised by high resilience to voltage transients on the 24 V bus and an extremely wide input-voltage range from 3,5 V to 38 V.

Read more...

Selecting primary batteries for maximum service life
Uniross Batteries Power Electronics / Power Management
Primary batteries play an important role in IoT applications. Designed for longevity, they have a high-energy capacity and are often used in standalone applications where charging is impractical or impossible.

Read more...

4 kW e-mobility DC-DC converter
Brabek Power Electronics / Power Management
The RECOM RMOD4000 series of compact, plug-and-play DC-DC converters is a cost-effective solution to provide isolated 14 V, 28 V, or 56 V DC network rails from a high input voltage between 180 and 950 V DC.

Read more...

Aluminium case upgrade boosts performance
Vepac Electronics Power Electronics / Power Management
The SQBF Quarter Brick 300 W DC to DC Converter is now available in a newly upgraded metal case designed to deliver improved durability and superior electrical performance across demanding applications.

Read more...

Extending the range of power converters
RS South Africa Power Electronics / Power Management
Power Integrations recently announced a breakthrough in flyback topology extending the power range of flyback converters to 440 W - well beyond the limits that traditionally required more complex resonant and LLC topologies.

Read more...

Categories

Power Electronics / Power Management

Single-phase energy metering ICs

Further reading:

Publications by Technews