POL regulators employ ZVS
22 August 2012
Power Electronics / Power Management
Vicor recently introduced its new Picor PI33XX Cool-Power ZVS buck regulator series that affords board-level designers high power density and flexibility for high-efficiency point-of-load DC-DC regulation.
The integration of a zero-voltage switching (ZVS) topology increases point-of-load performance, providing power efficiency up to 98% peak. Products in the PI33XX series are highly integrated with control circuitry, power semiconductors and support components in a 10 x 14 x 2,56 mm LGA system-in-package (SiP).
PI33XX buck regulators can convert input supplies ranging from 8 V to 36 V to output voltages from 1 V to 16 V and output current up to 10 A for power delivery up to 120 W. Power delivery can be further increased by interleaving up to six regulators using single-wire current sharing without the need of any additional components.
The use of a ZVS topology enables high-frequency operation that maximises efficiency by minimising the significant switching losses associated with conventional buck regulators that use hard-switching topologies. The high switching frequency of the PI33XX series also reduces the size of the external filtering components, improving power density while enabling fast dynamic response to line and load transients.
The PI33XX series sustains high switching frequency all the way up to the rated input voltage without sacrificing efficiency and, with its 20 ns minimum on-time, supports large step-down conversions up to 36 VIN. A wide operating temperature range of -40°C to 125°C allows for use in almost any environment.
The regulators offer an optional I²C extended fault telemetry capability allowing for six distinct types of fault reporting. Additional device-programmable I²C features include margining, enable pin logic polarity and phase delay. Device programming is performed via the Cool-Power Development Tool.
Further reading:
High-precision current transducer
Power Electronics / Power Management
Danisense announces its new high-precision DP12IP current transducer designed for isolated DC and AC current measurement in demanding PCB-mounted power electronics applications.
Read more...
Secure holder for protected 18650 batteries
Power Electronics / Power Management
Designed for protected 18650 batteries up to 70 mm long, the holder offers secure retention for portable, industrial, and embedded applications.
Read more...
More room to scale
Altron Arrow
Power Electronics / Power Management
With the latest STM32H5 lines from STMicroelectronics, you can now scale within the same platform, from a compact 1 Mbyte device to higher-memory MCUs for graphics-rich and feature-heavy designs.
Read more...
Surface mount power amplifier for high-power applications
RF Design
Power Electronics / Power Management
The GNA-63-5W+, from Mini-Circuits, is a GaN MMIC Power Amplifier (PA) designed for demanding RF applications requiring high efficiency, excellent linearity, and a compact footprint.
Read more...
1200 V QSiC modules
Power Electronics / Power Management
SemiQ Inc has launched the QSiC Dual3, a family of 1200 V half-bridge MOSFET modules for motor drives in data centre cooling systems, grid converters in energy storage systems, and industrial drivers.
Read more...
MCOTS transient filter for military applications
RFiber Solutions
Power Electronics / Power Management
SynQor has announced the new MCOTS-F-28-T-HE transient half-brick filter, the latest addition to its MCOTS product family.
Read more...
Expanded range of high-thermal-performance QSiC modules
Power Electronics / Power Management
SemiQ’s half-bridge series for data centre power converters and industrial motor drives features low RDSON SiC MOSFETs and parallel SBD diodes for best-in-class power density and conversion efficiency.
Read more...
Transporting lithium batteries and IoT devices
Power Electronics / Power Management
With billions of rechargeable and non-rechargeable lithium cells and batteries powering most of the world’s consumer and industrial electronic devices, shipping them to customers through vast global logistics chains is often an overlooked topic.
Read more...
Setting a new benchmark for high-power DC load testing
Conical Technologies
Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.
Read more...
Quality batteries are critical for IIoT
Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
Read more...
printer friendly version