100 A isolated POL converter responds quickly to step load changes
22 September 2004
Power Electronics / Power Management
Vicor says that its latest V·I chip voltage transformation module (VTM), the V048K015T100, is the first such product capable of 100 A. The VTM meets the demands of advanced DSP, FPGA, ASIC, processor cores and microprocessor applications at the point of load (POL) while providing isolation from input to output.
The company says it delivers up to 100 A from a package less than 4,1 cm³ in volume and responds in a fraction of one microsecond to no load-full load and full load-no load step demand changes.
It is optimised for very low output voltages at high currents, and touts an efficiency of 90% at 1,2 V/100 A, and better than 92% at 50 A. The VTM may be paralleled to deliver hundreds of amps at an output voltage settable from 0,8 to 1,6 V d.c. As a point-of-load current multiplier (32 X) with megahertz bandwidth, the VTM can eliminate bulk capacitors and the high power distribution losses caused by bussing high currents to the POL.
The VTM V048K015T100 is rated for a maximum continuous output of 100 A up to 1,5 VOUT and 150 W up to 1,6 V over a Vf input range of 26 to 55 V d.c. It can be operated either open- or closed-loop depending on the output regulation needs of the application. Operating open loop, the output voltage tracks its Vf input voltage with a transformation ratio, K=1/32, and an output resistance, ROUT =1,0 mΩ, to enable applications requiring a programmable low output voltage at high current and high efficiency. Closing the loop back to an input pre-regulator module or DC-DC converter compensates for ROUT.
The 1,5 V VTM achieves a current density of 24 A/cm³ in a V·I Chip package that is compatible with standard pick-and-place and surface-mount assembly processes.
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...
printer friendly version