Details

AC power source / AC power supply

An AC power source is a device that supplies AC power to various devices, such as lamps and household appliances. While many household appliances can function under an unsteady voltage condition from general AC power supplies, precision instruments or devices with electronic circuits can experience negative effects and even malfunction due to the instability of the power supply.

To ensure that devices work properly and reliably, a voltage stabilizer such as an AC power source (also known as an AC power supply) is necessary. An AC power source takes alternating current (AC) power from the grid and transforms the power to a designated voltage or frequency to the DUT, providing stable AC power under different power supply conditions of each country.

In addition to eliminating voltage fluctuations, an AC power source can also be used for testing purposes and to simulate malfunctions, including instantaneous electricity shutdown, harmonic generation, surges and sags, in the testing of electronic equipment. This is due to its capacity to supply various voltages and frequencies.

As the last paragraph states, the electricity provided by the power supply may contain various fluctuations, which can cause malfunctions in the device under test (DUT). Therefore, it is essential to verify in advance that the DUT can withstand such an environment. To conduct power supply tests, an AC power source is typically utilized, as it is best suited for testing the DUT's actual power supply. Each test must be performed separately to ensure accurate results.

Simply put, AC power source is a kind of power supply that meets the following three properties:

• Providing stable voltage output.
• Offering steady waveform output regardless of fluctuations of the input voltage.
• Supplying sustaining power to different types and changes of the load.

Specification