Low-loss, high-saturation SMT power inductor

28 May 2008 Power Electronics / Power Management

Pulse has introduced the new PG0702NL series of flat-coil surface mount (SMT) power inductors. These inductors have a low DCR of 0,89 to 5,9 mΩ and a tight tolerance of ±6% for high efficiency. Inductance values range from 0,40 to 3,0 μH with a peak saturation of 15 to 45 A. Operating frequency is 100 kHz to 1 MHz at an operating temperature of -40 to +130°C with no thermal derating.

These inductors are used to store energy and serve as filters in voltage regulator modules (VRMs) used in notebooks, desktop computers, workstations, and servers as well as DC-DC applications, point-of-load (POL) converters, and other high-density, high-power, high-ambient temperature applications.

The PG0702NL series uses a ferrite core material which has one tenth the core loss of iron powder or iron alloy core materials. The lower core loss of the ferrite material is optimised at frequencies above 500 kHz. The decrease in core loss is said to increase system efficiency by 5 to 10%. Because the ferrite material is immune to thermal ageing, these inductors are reliable at higher operating temperatures.

The PG0702NL series has a self-leaded, round, wire coil which lowers the overall cost of the finished product and providing tight tolerance of the direct current resistance (DCR). This tight tolerance improves current sensing control and the power supply's regulation and transient response.

These inductors have an industry standard 4040 footprint of 10,8 x 9,5 x 8 millimetres and incorporate a three-pin design for improved mechanical stability. An unconnected third pin at the back of the inductor distributes the part's weight and balance between the three terminals during mechanical vibration.

The PG0702NL series is RoHS compliant and meets standard EIA481 requirements.

Further reading:

ABB’s Mission to Zero drives South Africa’s energy transition
ABB Electrification Products Power Electronics / Power Management
ABB Electrification is charting a bold path towards a net-zero future with its Mission to Zero programme, a blueprint that combines energy efficiency, electrification, and digital innovation to accelerate the transition to clean energy.

Read more...

---

Energy harvesting using a battery-less IoT system
NuVision Electronics Editor's Choice Power Electronics / Power Management
Energy Harvesting plays an essential role in the foundation of ambient IoT, a new generation of ultra-low power connected devices that operate by drawing energy from their environment instead of relying on traditional batteries.

Read more...

---

Driving power, defining performance
Future Electronics Power Electronics / Power Management
Vishay’s portfolio of inductors, current sense resistors, and MOSFETs provides a comprehensive solution for intelligent power management.

Read more...

---

Battery simulator module simplifies BMS testing
Test Dynamics Power Electronics / Power Management
The PXI/PXIe solution from Pickering Interfaces offers a scalable, modular design for faster development cycles, lower total cost of ownership, and improved safety.

Read more...

---

DC PSU: The cornerstone for efficient solar-storage systems
Vepac Electronics Power Electronics / Power Management
PV energy storage systems are evolving and DC power supplies, with their technical characteristics that are naturally compatible with new energy, have become a key carrier for improving system energy efficiency.

Read more...

---

Why local manufacturing, maintenance and support are key to the success of South Africa’s energy future
Power Electronics / Power Management
Although new renewable generation capacity is being developed, the current transmission infrastructure may not fully support the connection of these sources to the national grid or adequately deliver power to areas of high demand.

Read more...

---

Converter power modules for 48 V networks
Altron Arrow Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.

Read more...

---

The importance of power integrity
Spectrum Concepts Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.

Read more...

---

Precise multi-vital sign monitoring
Future Electronics Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.

Read more...

---

Automotive battery diagnostics tester
Comtest Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.

Read more...

---