Electronicdesign 5367 745951025 B2
Electronicdesign 5367 745951025 B2
Electronicdesign 5367 745951025 B2
Electronicdesign 5367 745951025 B2
Electronicdesign 5367 745951025 B2

Intermediate Bus Converters Incorporate Digital Control

Oct. 24, 2012
CUI has released two series of fully regulated intermediate bus dc-dc converters following its licensing of Ericsson’s FRIDA II digitally controlled advanced bus converter portfolio.
Tualatin, Ore., U.S.: CUI has released two series of fully regulated intermediate bus dc-dc converters following its licensing of Ericsson’s FRIDA II digitally controlled advanced bus converter portfolio. The NQB and NEB series, part of CUI’s Novum Advanced Power range, are pin-compatible with Ericsson’s BMR456 and BMR457 series, respectively (see the figure).

The quarter-brick NQB and eighth-brick NEB series are based on a 32-bit ARM MCU with power-optimising firmware designed to maximise and flatten the efficiency curve, providing peak performance across a much wider range of loading conditions than other intermediate bus converters.

With typical efficiencies as high as 96.4% and optimised efficiency from 20% to 100% load, the modules suit applications where loading conditions can vary greatly. The firmware is also designed to handle input voltage transients with slew rates of up to 0.5 V/µs, while keeping the output voltage within ±10% and ensuring the output voltage doesn’t trigger over-voltage protection.

The NEB and NQB series both provide a digital interface that complies with PMBus 1.2. A range of parameters can be set via a USER_STORE memory block.  A number of protection features can be set, including over-temperature, over-current, and over-voltage.

The converters are available in two input range configurations: 40- to 60-V dc input for datacom applications and 36 to 75 V dc for telecom applications. The NEB eighth-brick series is offered with power ratings ranging from 264 to 300 W, while the NQB quarter-brick series is available in 420- to 468-W configurations. 

Output voltage for all models is preset at 12 V dc. For dynamic bus applications, users can dynamically adjust the NEB’s output voltage via PMBus from 6.9 to 13.2 V dc and the NQB’s output voltage from 4.0 to 13.2 V dc. For higher-power requirements, optional Droop Load Sharing is offered in both series. 

CUI

Sponsored Recommendations

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

How to Quickly Leverage Bluetooth AoA and AoD for Indoor Logistics Tracking

March 27, 2024
Real-time asset tracking is an important aspect of Industry 4.0. Various technologies are available for deploying Real-Time Location.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!