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7. Why the TSCT-Curve not showing the dependency of the Temperature – but of the Load percentage ?? |
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Written by Administrator
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Thursday, 18 January 2007 |
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Answer : Temperature is an indirect result of the energy loss in form of heat (so-called heat-dissipation – electrical to thermal loss). The total energy loss of power supply depends strongly on its efficiency and the actual loads on its DC-outputs. By controlling the air-flow / air-convection the heat energy loss should be as soon as possible conveyed out from inside the power supply, to guarantee the heat-balance and the optimum of mean temperature inside the power supply. In detail each value of the temperature depends also on what kind of components and its location. Power components, like power-diode, MOSFET, HV-transistor etc. producing the most local energy loss (so-called “hot-spots”), which - through the built-in heat-sinks of appropriate dimension and large surfaces - should be conducted and over its surface conveyed out by the air-convection. It has therefore a sense that TSCT-curve showing the dependency on the load than on the temperature , because the energy loss is proportional to the loads. Note : Tagan power supplies have a high efficiency of ca. 75% and a PF-value up to 0.99 on high-loads. The special designed heat-sinks of the Tagan power supplies enable not only the best thermal management but also a lowest possible fan noise development. Indeed Tagan does not need fan on light-loads (i.e. zero dB operation); nevertheless for the sake of security at least one fan should run and on higher loads (due to higher heat-dissipations) then both 2 fans are working.
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Last Updated ( Thursday, 19 July 2007 )
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