New from Coilcraft is a line of ultra-miniature step-up transformers that are ideal for use with energy harvesting ICs. The LPR6235 family offers turns ratios as high as 1:100 and a coupling coefficient (k) of 0,95 or more in a surface mount package measuring just 6 mm square by 3,5 mm high.
The LPR6235 was chosen by Linear Technology for use with its new LTC3108 ultra-low-voltage step-up converter and power manager. Because of their high efficiency, low DCR and 1:100 turns ratio, Coilcraft’s transformers allow the IC to operate from input voltages as low as 20 mV.
Four models are available with primary-to-secondary turns ratios of 1:100, 1:90, 1:50 and 1:20. Lower ratios are designed for use with energy sources such as thermopiles that output higher voltages. Coilcraft can produce versions with custom turns ratios and also offers the LPR4012 family of transformers with ratios from 1:10 to 1:1,5 in an even smaller package.
The efficiency of the LPR6235 transformers comes from their >0,95 coupling factor and primary winding DC resistance of 0,08 to 0,2. They feature 100 V winding-to-winding isolation and primary winding inductance values from 7,5 to 25 µH. Current ratings range from 1,6 to 0,7 A.
The parts are RoHS compliant and are built for operating temperatures from -40°C to +85°C and storage temperatures from -40°C to +125°C.
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...Integrated X-band radar front-end module RF Design
Telecoms, Datacoms, Wireless, IoT
Qorvo has introduced an X-band radar front-end solution that enables defence system designers to achieve higher performance without increasing size, weight or prime power.
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...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.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version