The HHP650 series of rugged AC-DC power supplies is designed for heavy-use industrial applications where an electrically & mechanically robust solution is required.Read More
AC/DC power supplies are commonly supplied in what is known by the industry as an open frame format. Open frame generally describes a product which is a PCB only construction, component power supply to be installed into an end application which provides the enclosure for the entire product.Read More
Global applications require a power supply that can deal with not only a universal AC input, typically 90-264 Vac, but also meet the customer’s lifetime expectations across all operating conditions.
It is quite common that the power supply manufacturer will specify a derating factor in the 90-115 Vac range. This is a decision that is made at the design phase and is influenced by the efficiency of the power supply at these input voltages, temperature of the components, lifetime and the cost to implement full load operation across the full input range.Read More
Power supplies marketed under the “Green” label are designed to maximise efficiency across the load range (average active mode efficiency) and minimise power consumed at no load. Active mode efficiency is the average of four measurements made at 25, 50, 75 & 100% of full load. The EU Code of Conduct also introduces a minimum efficiency at 10% load to cater for applications where the power supply spends extended periods at light load.Read More
Many power supply products are marketed under the “Green Power” label meaning that they are designed to maximise efficiency across the load range (known as average active mode efficiency) and minimise power consumed at no load. Active mode efficiency is the average of four measurements made at 25, 50, 75 & 100% of full load.
There are multiple pieces of legislation applicable to external power supplies (EPS) including the ErP directive (Energy related Products), CEC (California Energy Commission), EISA (Energy Independence & security Act), NRCan (Natural resources Canada). Many power supply makers are also marketing component power supplies with similar specifications designed to enable users to meet green criteria for end applications.Read More