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What is a 19-inch rack system?
A 19-inch rack is a modular system for mounting electronic equipment that complies with the DIN 41494 standard. The system consists of plug-in printed circuit boards (PCBs), PCB mounts (sub-racks) and 19-inch cabinets, all of which are designed to be compatible and to be combined with one another in different ways.
How does the single-battery concept developed by PULS work?
If you want to provide a battery buffer for a 24 V system, you generally use two conventional 12 V batteries connected in series. The batteries must be paired and must have the same state of charge and ageing. If this is not the case, one battery may be overcharged or damaged or may age prematurely. The PULS single-battery concept simplifies this process and extends the useful life of the batteries.
What are the 3D data of power supplies?
The 3D data are the three-dimensional mechanical designs of the power supplies and devices in electronic form.
What is leakage current in a power supply?
Leakage current is also known as stray current or touch current. It is important to limit leakage current in order to protect users from dangerous touch voltage and prevent faults from occurring in the system.
At what altitudes can PULS devices operate?
PULS devices can be used without restrictions up to a height of 2000 metres above mean sea level. Above an altitude of 2000 metres, the output power must be derated, because the air pressure falls as the altitude increases. This means that the air becomes less dense, which also reduces the cooling effect of the convection air flow in the power supply.
What is ripple and noise voltage in a power supply?
Ripple and noise voltage is the alternating current voltage superimposed on the output voltage. In the case of a switched-mode power supply, this is specified in mVpp (millivolts peak-to- peak).
What is an auto-select input in a power supply?
A 1-phase power supply with an auto-select or auto-range input detects the input voltage and automatically selects the correct input voltage range.
What does AWG mean?
AWG (American wire gauge) describes the diameter and cross section of wires. The AWG system is mainly used in North America.
How does the burn-in test for power supplies work?
Before delivery, PULS subjects every power supply to an endurance test at an increased ambient temperature as part of the manufacturing process. This is known as a burn-in test. The burn-in test is carried out for quality assurance purposes.
What are burst frequencies?
A burst is an electrical fast transient (e.g. on the mains power line).