Contactless voltage stabilizer main circuit with high voltage stabilization precision and contactless voltage stabilizer

Abstract

The invention discloses a contactless voltage stabilizer main circuit with high voltage stabilization precision. The contactless voltage stabilizer main circuit comprises a compensation transformer, an autotransformer and a reversing circuit. The two lead-out terminals and the n taps of the autotransformer are connected in parallel to be connected with a parallel wire through first contactor switches. Second contactor switches are arranged between every two adjacent connection points on the parallel wire. Both ends of the parallel wire are connected to the primary winding of the compensation transformer through the reversing circuit. The contactless voltage stabilizer main circuit has high voltage stabilization precision and a wide voltage stabilization range. The invention also discloses a contactless voltage stabilizer, which comprises a contactless voltage stabilizer main circuit, an output sampling circuit, a comparator and a control circuit, wherein the output sampling circuit acquires the voltage at the output end of a circuit to be subjected to voltage stabilization; the comparator is connected to the output sampling circuit; the control circuit is connected to the comparator, the reversing circuit, the first contactor switches and the second contactor switches. The contactless voltage stabilizer achieves high precision and voltage stabilization in a wide range.

Description

technical field [0001] The present invention relates to a main circuit of a non-contact voltage stabilizer with high voltage stabilizing precision, and also relates to a non-contact voltage stabilizer utilizing the main circuit of the non-contact voltage stabilizer with high voltage stabilizing precision to realize voltage stabilization. Background technique [0002] The voltage stabilizer mainly transforms the input voltage within a certain range into the output voltage within the required precision range through the voltage stabilizing circuit. important parameters of the compressor performance. [0003] Traditional mechanically compensated regulators such as figure 1 As shown, the carbon brush on the voltage regulator TB slides on the surface of the voltage regulator coil mainly by the positive and negative rotation of the servo motor, thereby changing the compensation voltage of the compensation transformer T, and its voltage regulation is basically linear. However, du...

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Problems solved by technology

However, if this method is to improve the voltage stabilization range and accuracy, a large number of taps need to be set on the autotransformer, and each tap needs to be connected to multiple thyristor switches at the same time. In the process of making the voltage stabilizer, the taps are difficult to handle. , so this method is only suitable for places that do not require high precision of voltage regulation

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