SU419864A1 - SINUSOIDAL VOLTAGE STABILIZER - Google Patents

Description

one

The invention is related to the field of industrial electronics and can be used in power supply devices of automation, computing and communication facilities.

Known sinusoidal-to-voltage stabilizers are known, which contain a source of reference voltage, a converter for output variable current into a constant voltage, a modulator, and an output transformer with windings.

In order to increase the stabilization factor and reduce nonlinear output voltage distortions in a wide range of temperatures, the proposed stabilizer additionally introduces two limiting amplifiers, one of which is connected to the power shunts, and the other to the modulator, the other to the output winding transformer and the output of K TWO | POZ "ZION110Mu

the key. A common key of the key is connected to a smoothing filter, and two fixed keys are connected to the extreme winding pins on the feedback of the output transducer. The middle terminal of the feedback winding is connected to the second input of the modulator via a smoothing filter together with a source of reference voltage.

The drawing is a functional diagram of the o-descending stabilizer.

The stabilizer transistor switch 1, controlled by the limiting amplifier 2, drains the exact phase-sensitive two-half-wave voltage of the alternating voltage formed on the windings 3 and 4. The filter 5 smoothes the unloaded voltage by applying voltage to the voltage and its harmonics. The output stable voltage of source 6 is optional. The transient modulator 7, controlled by the suppressor limiter 8, converts the difference of the constant reference voltage and feedback feedback into a rectangular alternating voltage, amplified by the amplifier 9. The bandpass filter 10 is designed to separate the first (main) harmonics from algebraic the amount of prjepiy arriving at its entrance.

The feedback voltage formed at the output of the smoothing filter 5 is strictly proportional to the average value of the alternating voltage on the winding 3, i.e. the average value of the output voltage of the stabilizer. A differential residual voltage, carrying information about the stability of the output voltage, goes to modulator 7 and converts the nm to a rectangular alternating voltage. The variable voltage amplifier 9 amplifies the imbalance signal. The output voltage of the amplifier 9, having a rectangular shape, can be either in phase or out of phase with the input voltage of the stabilizer, depending on the sign of the difference between the reference and reverse feedback, as the modulator 7 is controlled by the amplifier - the limiter 8 connected to the input voltage, and the 9 pragmatic amplifier does not introduce phase shifts. The HaiCTipoeH stabilizer is such that, at the rated INPUT voltage, the output voltage of amplifier 9 is zero. With an increase in the input voltage, the voltage of the amplifier 9 is in the opposite phase, i.e., the amplitude of the total voltage: and less than the input amplitude.

The input voltage supplying the stabilizer may be rectangular.

Subject invention

A sinusoidal voltage regulator containing a source of reference voltage, a converter of output AC voltage to a constant modulator, and an output transformer with a flash, characterized in that, with a gap, it increases the stabilization factor and reduces the nonlinear distortion of the output voltage nor in a wide range of temperatures. Two additional limiter amplifiers are added to it, one of which is connected by an input to

the supply busbars, and the output to the modulator, the other one - input1M to the winding of the output transformer and the output to the two-inking key, the common contact of which is connected to the smoothing filter, and two fixed

connected to the extreme leads of the feedback winding of the output transformer, with the middle lead of the feedback winding through a smoothing filter together with a source of reference voltage

connected to the second input of the modulator.