DC bus converter chipset redefines distributed power architecture
7 May 2003
Power Electronics / Power Management
International Rectifier has unveiled the first group in the family of DC Bus converter chipsets that it claims redefines the underlying distributed power architecture for 48 V-input, 150 W board-mounted power (BMP) converters used in telecom and networking systems.
This DC Bus converter chipset architecture establishes benchmarks for overall efficiency, power density and simplicity, claimed to deliver more than 96% efficiency at 20 A/150 Wout in a circuit footprint less than 11 cm2. Also, the chipset enables a 53% size reduction when compared to industry-standard quarter-brick form factors and cuts component count in isolated converters from around 50 components to 20, says IR.
The new chipset consists of a single IR2085S control IC and one pair each IRF7493 primary- and IRF6603 secondary-side HEXFET power MOSFETs, plus the IRF7380 for primary-side bias and an IRF9956 for the secondary-side gate clamp. The chipset is designed for the isolated front-end of two-stage distributed power architectures (DPA) with an intermediate bus voltage feeding non-isolated point-of-load (POL) converters.
Two-stage DPA schemes do not require a tightly regulated intermediate bus voltage, since the POL will typically accept a relatively wide input voltage, and the POL provides the needed regulation to the load. In addition, multiple DC bus converter chipsets can be placed in parallel for higher power requirements.
For more information contact Avnet Kopp, 011 809 6100, [email protected], www.avnet.co.za
Further reading:
Next-gen power meter
Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services
Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.
Read more...
New SiC power MOSFET
Future Electronics
Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.
Read more...
Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.
Read more...
Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.
Read more...
Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.
Read more...
16-channel multicell battery monitor
Altron Arrow
Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.
Read more...
Reliable redundancy with the Mibbo M3DN Series
Conical Technologies
Power Electronics / Power Management
Designed for use with two parallel-connected power supplies, the M3DN Series allows for true redundancy, making it ideal for mission-critical applications.
Read more...
Automotive power-over-coax inductor
RS South Africa
Power Electronics / Power Management
TDK has launched the ADL8030VA, a high-performance inductor designed specifically for power-over-coaxial applications.
Read more...
Rugged PSU for challenging conditions
Conical Technologies
Power Electronics / Power Management
Built for rugged reliability, the Mibbo MFC Series delivers stable, efficient power in environments where moisture, dust, and temperature extremes are everyday challenges.
Read more...
printer friendly version