News

We have recently updated our 300 Series of Euro-card Modular DC-DC converters.

 The Benbro 300 series consists of a range of high efficiency DC/DC converter modules specially developed for high reliability applications such as communication systems, solar installations, process control, industrial electronics, railway rolling stock and mining applications.

 Up to 6 of the 300 Watt units (1.8 kW) can be housed in a single 3RU 19” sub-rack enclosure.

 Nominal inputs available are 100, 48, 24 and 12 VDC and the nominal outputs available are 12,24 and 48 VDC.

 The input and output are fully isolated so that input and output polarity (earthing/common) can be connected as required.

 The available options include an output monitor (1 converter space) that displays the output voltage & current and load distribution (2 converter spaces) that can have up to 5 circuit breakers with a C/B fail output for the monitor (if fitted).

Please see our new 300 Series brochure for a more detailed description of the products, specifications and the available options.

Benbro is pleased to announce the release of an exceptionally compact 48V DC current/voltage monitor.

 The unit can be integrated into new or existing 48V systems. With a PCB measuring only 34 x 36 x 25 mm, it can be mounted in any orientation and used even when the available space is particularly tight.

 The dual-line display is backlit with white LEDs and is connected to the PCB by a ribbon cable of (user-specified) length up to 500 mm.

 The product can also be specified with digital and analogue I/O pins for custom applications. Other voltages are available on request.

 Further details can be found elsewhere on our website.

 Benbro has had a long association with the solar power and telecommunications industries and for that reason the unit is supplied with positive ground.

 Positive grounding has two advantages, both of which follow from the reduced ground leakage current ensured by this configuration.

 Ground leakage current occurs primarily because of moisture and electrolytic corrosion occurs at the point of leakage. If the negative leg is grounded, the solar system side of the connection is eroded, with cables and connections most typically eaten away. This doesn’t happen with positive grounded systems.

 The second advantage of positive grounding is the higher efficiency such a configuration provides. The corrosion barrier acts to form a diode and efficiency losses due leakage current through the diode are minimised when the positive leg is grounded. Depending on the particular solar panels and the design of the installation used, positively grounded systems can be as much as 10% more efficient than their negatively-grounded equivalents.

Apart from the obvious response that they both amplify sound, you wouldn't expect there to be much in common between a tiny hearing aid that finds in your ear and a megaphone designed to make sounds lout enough that they can be heard at a a distance of hundreds of... [Details]

Uninterruptible Power Supplies (UPS) are used in a number of applications but in this blog we concentrate on their use in patient areas of hospitals, medical and dental practices and home dialysis locations.  In these situations a UPS provides the operating room and other critical care areas with continuity of... [Details]

Last week we wrote about using STIPA (Speech Transmission Index through Public Address) to test our Teraphone, the speech-optimised long-distance megaphone we have built for outdoor use. We believe STIPA gives a better indication of how well transmitted spoken messages can be received and understood than just measuring dB levels.... [Details]

Measuring the Range of a Megaphone   Some time ago the Australian Navy asked us to build a sound projection system for ship-to-ship communications. The acceptance criteria included the requirement that certain spoken commands could be heard with >90% accuracy when the speaker and the listener were separated by 1... [Details]

Benbro Electronics is pleased to announce that it has joined the NSW Business Chamber. The Chamber is the state's peak business organisation and traces its heritage back to 1826.  Benbro will look for B2B opportunities within the 19,000 strong membership group and will make use of the wide range of... [Details]

Benbro is an Australian design and manufacturing company. It produces high reliability electronics equipment for a variety of industries - such as mining, solar and medical. With 30 years of industry presence, Benbro is an award winning industry leader in the electronics field. The directors of DBD Group have extensive... [Details]