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GW Instek AC Power Supplies currently can be divided into three categories, AC/DC power source, programmable linear AC power source, and linear AC power source.
Why is power supply important?
In the past, the purpose of using the AC power supply was to provide the voltage and frequency of the utility power in various countries and to simulate various phenomena of abnormal power quality. With the development of new energy sources, in addition to using AC power as input, communications and server power supplies can also directly input DC power (HVDC or LVDC) from UPS or energy storage devices to save power consumption from AC to DC conversion.
Test instruments are output-type instruments. The output provided has two purposes. The first purpose is to provide an output with a known error to stimulate (Stimulate) the input of the DUT so that the DUT can operate; the second purpose is to simulate possible fault phenomena by the input to the DUT to observe the fault tolerance of the DUT or to reproduce the fault for circuit debugging.
Why can't the functional test be done directly by utility power?
Take the charger specifications of a notebook computer as an example, the specifications of the input terminals are：
The utility power cannot provide the rated input voltage range of 100~240V for the global universal charger, and must also provide a stable voltage tolerance range of ±10%, so it must be able to provide an operating voltage of 90~264V as the input excitation source.
The autotransformer is cheaper than the AC power supply and can provide a voltage of 90~264V. Why can't the autotransformer replace the AC power supply?
There are five reasons why autotransformer cannot replace AC power：
|AC Output Capacity|
|DC Output Capacity|
|AC Output Range|
|DC Output Range|
|Maximum AC Output Current|
|Maximum DC Output Current|