Voltage Stabilizer For Constant Voltage Transformer

An appliance that can stabilize the power supply voltage. When the grid voltage or load changes, the voltage stabilizer can make the power supply voltage supplied to the load nearly constant. In the power system, the voltage stabilizer is often used in situations where the power supply voltage stability is required to be high. Voltage stabilizers are divided into two categories according to the output voltage: DC voltage stabilizers and AC voltage stabilizers.
DC voltage stabilizer An appliance that converts AC or unstable DC into a stable DC voltage output. DC voltage stabilizers mainly include linear voltage stabilizers and switching voltage stabilizers.
The function of the linear voltage stabilizer Constant Voltage Transformer(CVT) and the rectifier filter circuit is to convert the AC voltage into DC after the voltage is converted by the rectifier circuit, and then eliminate a certain ripple through the filter circuit and add it to the adjustment tube of the voltage stabilization circuit. If the output voltage U. changes with the input unstable DC voltage Udi or the load current IL, the sampling feedback circuit and the comparison amplifier can amplify the changing signal and send it to the adjustment tube, so that the tube voltage drop of the adjustment tube changes in the opposite direction to offset the change in the output voltage, thereby maintaining the stability of the output voltage.
The characteristics of linear voltage regulators are high voltage regulation accuracy, low output impedance, small ripple, and relatively large output current. However, the adjustment tube in the voltage regulator must always work in the linear amplification region to have a voltage regulation effect. Therefore, its power conversion efficiency is relatively low.
AC voltage regulator An electrical appliance that converts the AC voltage of the power grid into a stable AC output voltage. AC voltage regulators can be divided into: ferromagnetic resonance voltage regulator, constant voltage transformer, magnetic amplifier voltage regulator, digital control voltage regulator, purification voltage regulator, induction voltage regulator with servo motor, constant voltage transformer voltage regulator, thyristor voltage regulator, constant voltage constant frequency (CVCF) voltage regulator, compensation voltage regulator, etc.