The constant voltage transformer integrates voltage stabilization, isolation, and transformation. It has a two-way filtering function that can eliminate noise from the power grid. It has good anti-interference ability. The output is sine wave or quasi-square wave. It is an ideal stabilized power supply for precision electronic instruments, microcomputers and numerical control equipment. There is a “day”-shaped iron core in the constant voltage transformer, the primary coil is in one window, and the secondary coil and resonant coil are in the other window. The resonant coil is connected to a resonant circuit whose resonant frequency is close to the frequency of the power supply.
When the primary power supply is connected, the resonant circuit oscillates to shallowly saturate the secondary iron core and form a constant alternating magnetic field. The magnetic induction intensity is within a certain range and is basically not affected by the input voltage change. The induced electromotive force remains unchanged. In this case, the primary input current only plays a role in supplementing energy.
