Info

Description Of Tests

On this page we list a brief description of each test performed.

Power Max Amps

The first test is of extreme type based on the measurement of peak maximum currents, the Load load is set on the Rail + 12V + 5V + 3.3V and + 5Vsb over the declared values, in the graph in the vertical axis the currents are reported measured instantly for each Rail, while on the horizontal axis the maximum power output is shown, this test shows us the maximum current delivered and therefore if the powers are real, lower or higher than those declared. This test is very important in the overall evaluation of the power supply.

power Max Amps

This test is of extreme type based on the measurement of peak maximum currents, the Load load is set on the Rail + 12V above the values declared while setting the values of Rail + 5V and +3.3V on a maximum value of 5A while the current of + 5Vsb is set to a maximum of 1A, the latter 3 values are calculated on a maximum consumption of a PC Gaming or a Server of average size, in the graph in the vertical axis the currents measured instantaneously are reported for each Rail; on the horizontal axis the maximum power output is shown, this test shows us the maximum currents supplied and therefore if the powers are real, lower or higher than those declared. This test is very important in the overall evaluation of the power supply.

Power Max Ampere +12V

Also this test is of extreme type based on the measurement of the maximum peak current on the single Rail + 12V, it sets the Load load over the declared values and pushes the power supply progressively beyond these limits until it goes off entering OverCurrent Protection , in the graph in the vertical axis are reported the variations of voltages measured instantly, while on the horizontal axis are reported the values of Ampere in Load, this test shows us the maximum currents supplied and therefore if the powers are different from those declared. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power Max Ampere +5V

Also this test is of extreme type based on the measurement of the peak peak current on the single Rail + 5V and subsequently together with the Rail + 3.3V, it sets the Load load over the declared values and pushes the power supply progressively beyond these limits until when it goes off when entering OverCurrent Protection the operation is repeated together with a progressive load on the Rail + 3.3V, in the graph in the vertical axis are reported the variations of voltages measured instantly in both passages, while on the horizontal axis are reported the values of Ampere in Load, this test shows us the maximum currents delivered in both tests and therefore if the powers are different from those declared. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power Max Ampere +3.3V

Also this test is of extreme type based on the measurement of the peak peak current on the single Rail + 3.3V and subsequently together with the Rail + 5V, it sets the Load load over the declared values and pushes the power supply progressively beyond these limits until when it goes off when entering OverCurrent Protection the operation is repeated together with a progressive load on the Rail + 5V, in the graph in the vertical axis are reported the variations of voltages measured instantly in both passages, while on the horizontal axis are reported the Ampere in Load values, this test shows us the maximum currents delivered in both tests and therefore if the powers are different from those declared. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power Max Ampere +5Vsb

Also this test is of extreme type based on the measurement of the maximum peak current on the single Rail + 5V of StandBy, it sets the Load load over the declared values and pushes the power supply progressively beyond these limits until it goes off entering OverCurrent Protection, in the graph in the vertical axis are reported the variations of voltages measured instantly, while on the horizontal axis are reported the values of Ampere in Load, this test shows us the maximum currents supplied and therefore if the powers are different from those declared. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power (Voltage 12V)

This test indicates the voltage variation on the specific rail of + 12V relative to the power absorbed, the Load load is set on the Rail + 12V + 5V + 3.3V and + 5Vsb according to the declared values, in the graph in the vertical axis it is reported the instantaneous measurement for the Rail + 12V, while the maximum power output is shown on the horizontal axis. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power (Voltage 5V + 5Vsb)

This test indicates the voltage variation on the specific Rail of + 5V and + 5Vsb relative to the power absorbed, the Load load is set on the Rail + 12V + 5V + 3.3V and + 5Vsb according to the declared values, in the graph in the axis The instantaneous measurement is reported for the Rail + 5V and + 5Vsb, while the maximum output is shown on the horizontal axis. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Power (Voltage 3.3 V)

This test indicates the voltage variation on the specific Rail of + 3.3V relative to the power absorbed, the Load load is set on the Rail + 12V + 5V + 3.3V and + 5Vsb according to the declared values, in the graph in the vertical axis is The instantaneous measurement for the Rail + 3.3V is shown, while the maximum power output is shown on the horizontal axis. The UVP and OVP values indicate the minimum and maximum voltage limits accepted for correct operation.

Spike Noise (Voltage Pk-Pk)

This test indicates the Spike level at the same time on each single Rail, specifically the + 12V + 5V + 3.3V + 5Vsb, the measurements are carried out with Peak-Peak mode simultaneously with the progressive increase of the absorbed power. The value of OVP indicates the Ripple value that would be indicated not to exceed. In the graph in the vertical axis are reported Spike voltages measured instantly for each Rail, while on the horizontal axis is reported the maximum power output, this test shows us the quality of disturbances present on the voltage in relation to power.

Rising (Voltage)

This test indicates the power-on time of the power supply by setting the load (Load) to 100%, the time is expressed in MS (milliseconds). With this test we can evaluate the time and above all the speed in reaching the nominal values, the lower these times and the better the quality and the control of the system. The output voltages are shown in the graph in the vertical axis, while the time in MS is reported in the horizontal axis. In this test the voltage of + 5V of Standby is not measured.

Falling (Voltage)

This test indicates the reaction of the power supply under test in the event of a short interruption of the AC power supply, in this test a load (Load) of 50% is applied and the reaction is measured, the longer the switch-off delay is, the better the quality of the product, moreover it is evaluated what happens to the restoration of the AC power, in case of rapid re-ignition the product examined will have a better evaluation. The graph in the vertical axis shows the output voltages, while in the horizontal axis the time in MS is reported in two successive scales, the first one indicates the switch-off time, the next the restart time when this happens. In this test the voltage of + 5V of Standby is not measured.

Peek (Voltage)

This test indicates the reaction of the power supply examined in case of sudden power demand, in practice a load (Load) of about 20% is applied and then quickly passed to a load (Load) of about 110%, the test consists in evaluating the peak of power demand, the lower the voltage variation on the outputs and the better the evaluation of the product in testing. The graph in the vertical axis shows the output voltages, while in the horizontal axis the applied load (load) is reported, going from 20% to 110%. In this test the voltage of + 5V of Standby is not measured.

Compare Input and Output Power

This is the first test related to energy efficiency, the graph shows the ratio between power input and output power the ratio to progressive load. The graph on the vertical axis shows the Watt in input and output, while in the horizontal axis the power absorbed by the load in percentage is shown. The closer the two curves are, the better the efficiency of the power supply will be.

Efficiency Power Supply

This graph shows the curve related to energy efficiency, the higher the percentage and the more efficient the product in testing, the measurement range is between a load (Load) of 10% and 100%. The graph on the vertical axis shows the percentage of efficiency, while in the horizontal axis the power absorbed by the load in percentage is shown. This test is very important in the overall evaluation of the power supply.

Compare Current and Voltage Waveforms

This test provides us with very important information on the operation of our power supply, it is the graphical representation of the Power Factor. Because of the internal impedances and the typical characteristics of the switching power supplies, the ratio between the absorbed current and the phase of the AC mains voltage may not be proportional, to remedy this use of the PFC filters that can be active or passive, with this test is possible to see graphically how this element works and its efficiency. The test is performed at full load (Load) 100%. In the graph the orange curve represents the AC voltage of the network while the blue curve represents the AC current absorbed in phase. The evaluation of this test is represented by the PF evaluation in the "Efficiency Report" table.