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Application of APM E-load in power supply test

2020-07-24

There are various kinds of electric device in daily lives. Each kind of electric device needs a stable and reliable switch Power Supply. A good switch power supply should match the requirement of all function specification, protection characteristic, safety standard and other feature level requirement. There are numerous of test items in switch power supply. Raise and fall time of voltage is one of the test item with may requirement and it is the guarantee of key performance.

Rise and fall time is a key parameter of power supply feature. Different electric device has different requirement to rise and fall time. Some electric device needs long rise and fall time, some need short rise and fall time. Generally, rise time means the time voltage raising from 10% rated voltage to 90% rated voltage. On the contrary, fall time means the time voltage dropping from 90% rated voltage to 10% rate voltage.

Normally, oscilloscope is needed in testing the rise and falltime of power supply. APM E-load provides timing function which is used in testing rise and fall time. With this function, users could decide for themselves at rise time test or fall time test. Trigger voltage and end voltage could random setting. It could realize testing rise and fall time accurately in designated area without oscilloscope. It save cost and test process is simple.

Voltage and current sampling frequency of APM E-load could reach to 500 kHz with high slew rate of current rising and falling.

EL200VDC1200W~26400W advanced version 0.1mA/us~28.8A/us;

EL600VDC1200W~26400W advanced version0.1mA/us~19.2 A/us;

EL1200VDC1200W~26400W advanced version 0.1mA/us~9.6 A/us

APM possess multiple products with mature technology. High power DC E-load with good performance and high accuracy provide guarantee to power supply test. It could help the development of electric industry.

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