Nemic-Lambda has a long history of supplying high-reliability power supplies to industry. With a product line that typically offers between three to five-year warranties, it is a good choice. And now in the modern communications age of everything becoming smaller and better, they have taken it a step further.
In the communications field (and general electronics for that matter) we all know how valuable physical space has become - gone are the days of entire rooms for electronics, all now typically fitted into a single 19" rack, or even merely a few rack-units in a 19" rack. Even though power requirements have also been drastically cut, the increased electronics density and processing power has resulted in an effective increase in power requirement per cubic centimetre.
This change has been a great challenge to power supply manufacturers - the supplies must be smaller and yet provide more power at higher efficiencies, etc. As a result the operating temperatures have increased at quite a rate, and better air flow through or over the units is required. But this then leaves those hated air gap requirements around the supplies - space being wasted!
Nemic-Lambda has come up with some ingenious solutions to this problem, and by optimising the layout and design of its power supplies, they are able to offer high-power supplies without the air gaps. The supplies have forced air running through them from front to back, and as a result the supplies can be fitted directly next to each other, or stacked directly on top of each other. And with the supplies typically only 1 Rack Unit or 2 Rack Units in height, virtually the entire rack remains free whilst adequate power is provided.
Three of these products are looked at below:
* FPS: The front-end power supply was developed for the communications industry. It offers 1 kW of power in fixed outputs 24 V d.c or 48 V d.c. These modules are only 1RU in height, and take up only one-third of a rack-shelf, meaning a completely integrated 1RU high unit can be purchased to deliver 3 kW of power to a rack. Various configuration options are available, including redundancy-configurations, remote control options, etc
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* Genesys: The Genesys-series of 1RU-height programmable power supplies are available as 750 W or 1500 W units. The 750 W GEN is a full-width power supply, whereas the GENH is a 750 W unit in half-width, therefore allowing two units mounted next to each other to form two supplies in a single full-width space. The 1500 W GEN is a single supply utilising the full width of the rack. The Genesys-series is available in a multitude of output ranges, starting at 0-6 V d.c. @ 0-100 A or 0-200 A, and through to 0-600 V d.c. @ 0-1,3 A or 0-2,6 A. Numerous standard features include CE-marking, remote control interfaces, lockable front panels, etc. With removable rubber feet supplied, the Genesys can just as easily be used as a free-standing unit in a laboratory environment.
* ZUP: The zero-up-series is a 2RU-height programmable power supply available as 200 W, 400 W (only 70 mm wide) and 800 W (only 140 mm wide). Therefore up to six ZUPs may be fitted next to each other in a 19" rack, offering up to 2,4 kW of programmable power with the freedom to configure as one pleases. Ranges from 0-6 V d.c. (@ 0-33 to 0-132 A) to 0-120 V d.c. (@ 0-1,8 to 0-3,6 A), supplied with the standard remote interfaces, easy user interfaces and optional GPIB interface unit, 19"-rack assembly kit or dual-supply assembly kit for lab-use.
Apart from the products mentioned here, Nemic-Lambda also offers a full range of DC-DC and AC-DC power products.
For more information, or if you would like to receive a Nemic-Lambda CD-catalogue, contact Tobie Muller, Accutronics, +27 (0)11 463 2287, tmuller@accutronics.co.za
| Tel: | +27 11 782 8728 |
| Email: | info@accutronics.co.za |
| www: | www.accutronics.co.za |
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