AC constant current source refers to a power supply device that can output a constant current in the case of AC power supply. It can adjust the output voltage within a certain range, but the output current always remains the same. This kind of power supply is mainly used in occasions that require stable current, such as electronic experiments, test equipment, medical equipment, etc.
The working principle of the AC constant current source is mainly to control the output current through an internal current regulator to keep it constant. When the load changes, the constant current source is able to automatically adjust the output voltage to keep the current constant. This is mainly due to the feedback control circuit of the constant current source, which monitors the output current in real time and adjusts it.
In addition, the AC constant current source also has the following characteristics:
High accuracy: The output current accuracy of AC constant current sources is usually very high, which can reach 1% or less.
Wide range: The output voltage and current range of the AC constant current source are very wide, which can meet the needs of different equipment.
High reliability: Due to the simple circuit design and stable structure of the AC constant current source, its reliability is high and the service life is long.
Convenient maintenance: The daily maintenance of the AC constant current source is very simple, and it is only necessary to regularly check the operation status and cleaning of the equipment.
In practical applications, AC constant current sources can replace traditional power supplies such as transformers and voltage regulators, providing a more stable and reliable power supply**. Especially in electronic equipment and test instruments that require high precision and high stability, AC constant current sources are more widely used.