A current stabilizer refers to a device used to stabilize the circuit current, which can maintain the load current unchanged under changes in input voltage and load impedance. A current stabilizer is used to supply power to the focusing coil of a cathode ray tube with magnetic deflection, the filament of an electronic tube that is sensitive to changes in filament current, the coil of a special electromagnet, and the excitation coil of a speed generator with output voltage strictly proportional to the number of revolutions. In some magnetic amplifiers, it is also advisable to use a current stabilizer for power supply

Advantages: fast response speed, high efficiency, small size, convenient and simple application, constant output current for control and regulation

Disadvantages: Large output ripple and high ripple value

A current stabilizer is used to stabilize the filament current in an electronic tube. A current stabilizer is two iron wires placed in a tube containing hydrogen and fluorine. When the voltage at both ends of the current stabilizer increases within a certain known range, its resistance also increases, to the extent that the current passing through the current stabilizer remains almost constant. In fact, when the voltage change at the two terminals of the current stabilizer is greater than twice, the overall change in current is not more than 5%