Single-phase energy metering ICs

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.

Further reading:

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...

---

Power-dense modules operate up to 115 V DC
Brabek Power Electronics / Power Management
The RPMVH-0.5 series of cost-effective, non-isolated buck regulator modules from RECOM delivers 0,5A of output at fully regulated voltages up to 24 V DC.

Read more...

---

Finding value for money with your IoT battery
Uniross Batteries Power Electronics / Power Management
Designing an IoT application involves a lot of choices. Designers are looking for performance and quality, but need to balance those alongside a low Total Cost of Ownership.

Read more...

---

Powering the IoT
Uniross Batteries Power Electronics / Power Management
Choosing the right battery is not simply a technical detail, but a defining factor in the longevity and cost-effectiveness of any IoT deployment.

Read more...

---

The move to DC infrastructure
IOT Electronics Power Electronics / Power Management
The shift toward direct current infrastructure in data centres is accelerating as operators pursue higher efficiency, improved reliability, and stronger alignment with renewable energy goals.

Read more...

---

Power inductor for automotive applications
Würth Elektronik eiSos Power Electronics / Power Management
The WE-MXGA inductor features RDC values up to 25% lower and a saturation current up to 47% higher compared to other components currently available on the market.

Read more...

---

High-performance DC-DC converter
Conical Technologies Power Electronics / Power Management
With a wide 9 - 40 V DC input range, the Claf Power DWHB400-F24xxN series is a high-performance DC-DC converter family ideally suited for 12 V and 24 V battery-based systems including vehicles, off-grid installations, and distributed power architectures.

Read more...

---

DC-DC converters for next-generation IoT
iCorp Technologies Power Electronics / Power Management
AIPUPOWER’s K78XXJT-500R3 and K78XXJT-500R3-LB give designers a compact, high-efficiency power option for battery-powered and space-constrained systems, combining up to 96% efficiency with no-load input current as low as 0,2 mA.

Read more...

---