Product category:
AC/DC Power Supplies
News Release from: Omron Electronics | Subject: ST8 range
Edited by the Electronicstalk Editorial
Team on 21 September 2001
Modest claims for novel switcher
Omron describes its new ST8 range as the most significant advance in switching power supply design for more than 10 years.
Omron describes its new ST8 range as the most significant advance in switching power supply design for more than 10 years The devices are based on a novel plug-together block design, allowing the user to create collectives of 2.5, 5, 7.5 or 10A in 12 or 24V DC output voltages
This article was originally published on Electronicstalk on 12 May 2000 at 8.00am (UK)
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The S8TS is also available in 5V DC as a 5A block.
"The S8TS will change the way we look at power", says Omron's Mike Irvin, who is one of the people responsible for the concept of the range.
"With it you can always 'just add a bit more power' to a control panel if you are extending it, and in new-build projects you can keep up with changing specifications without having to completely redesign the panel every time there is a modification.
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You can even run components of different voltages from a single collective of S8TS".
The standard size (43 x 120 x 120mm) DIN-track mounting modules make initial panel layout simple, and its versatility to accommodate changing power supply requirements maintains the ease of use no matter what alterations are required to the control panel.
No longer is it necessary for a major rework of the panel, with a complete change of the power supplies, new 43mm modules can be added as required to the maximum of 10A per group.
Even the two bus line connectors, parallel and isolated, are supplied as standard with each unit, so they are immediately ready for use.
The modules are connected using a supplied, keyed connector, giving the facility for parallel or isolated operation and also allowing the combination of units to create multivoltage units.
For 12 or 24V DC output, modules can be connected together to give a power supply range of 60 to 240W for standard operation.
The range also offers the additional benefit of redundancy protection.
With the addition of an extra unit, if a module becomes defective for any reason, the additional unit will come onto line automatically to take up the shortfall in current requirements, until such time as the faulty unit is replaced.
The fault is identified by a visible under-voltage detector and also by wiring to an external alarm.
Using the isolated connector, the user can create independent groups with mixed output voltages (24, 12, 5V DC) or different capacities.
The input circuit remains connected through the unit keeping the wiring simple.
The S8TS is CE marked and approved to the latest European legislation regarding noise and emissions, so can be used in all new panel-builds as well as replacing old or failed units.
In addition, the S8TS is approved to applicable UL and CSA standards, making it the ideal choice for export contracts.
The unit also complies with the latest European EN61000-3-2 A14 regulations regarding power factor correction.
The unit is designed to accept a supply voltage between 85 and 264V AC to allow connection to the mains supply of many countries.
And finally, there is a major cost-benefit to the user of the anticipated life expectancy of the S8TS.
Based on an ambient of 40C and a load rate of 50%, the S8TS has an expected life of at least 10 years.
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