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:
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...
Advanced 3-phase controllers
Future Electronics
Power Electronics / Power Management
The STSPIN32G0 by STMicroelectronics is a family of highly integrated system-in-package providing solution suitable for driving three-phase brushless motors.
Read more...
Converting high voltages without a transformer
Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...
Reliable power for demanding applications
Conical Technologies
Power Electronics / Power Management
The Mibbo Power MTR480 three-phase DIN-rail power supply is engineered to meet stringent industrial automation requirements, offering dependable performance in environments where downtime is not an option.
Read more...
Powering performance and precision
Future Electronics
Power Electronics / Power Management
onsemi’s innovative T10 series MOSFETs, available in 40 V and 80 V versions, are designed for high-efficiency, fast-switching, and power-dense applications.
Read more...
Programmable flyback switcher ICs
Future Electronics
Power Electronics / Power Management
Power Integrations has announced the release of the InnoSwitch5-Pro family of programmable flyback switcher ICs, which offer more than 95% efficiency in streamlined AC-DC converter designs.
Read more...
Multilayer chip beads with 8 A rating
RS South Africa
Power Electronics / Power Management
TDK Corporation has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines.
Read more...
The role of bidirectional charging in the evolving energy landscape
Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...
printer friendly version