SU1150559A2 - Ac voltage generator output voltage checking device - Google Patents

Abstract

DEVICE CONTROL OUTPUT VOLTAGE OF THE ALTERNATOR VOLTAGE GENERATOR No. 718793, characterized in that, in order to increase accuracy, a successor and a filter are inserted in series, the rectifier input is connected to the output of the alternating voltage generator, and the output of the filter is connected to the control input of the direct voltage source.

Description

(L

with

ate

o ate

The invention relates to radio engineering and can be used to control the output voltage of alternating voltage signal generators. According to the main author. St. No. 718793, a device for monitoring an output voltage of an alternating voltage generator, comprising an alternating voltage generator, an attenuator, a constant voltage source, a voltmeter of a constant voltage, two voltages, and two alternating voltages is known. voltage and load, while the input and output of the attenuator are connected respectively via isolating elements at a constant voltage to the output of the alternating voltage generator and to the load, and through alternating elements through an alternating voltage for voltage, to a source of constant voltage and to a voltmeter of constant voltage Cl 3. However, in this device, the accuracy of monitoring the output voltage of the alternating voltage generator during frequency tuning of the generator is insufficient, since during the frequency tuning of the generator it changes and the magnitude of the output voltage reHepaTofia, which does not reflect on the readings of a voltmeter of constant voltage. In addition, in alternating voltage generators within a step change in the generator voltage using an attenuator, the voltage also varies smoothly by changing the voltage at the output of the generator itself (up to the attenuator). This gradual change in the voltage of the generator is also not recorded on the voltmeter of this voltage. The purpose of the invention is to increase the accuracy by correcting the measured voltage in accordance with the instability of the output voltage of the generator. The drawing shows the functionality of: a device for controlling the output voltage of an alternating voltage generator. The device for controlling the output voltage of the alternating voltage generator contains a alternating voltage generator 1 connected via the first isolating element at a constant voltage 2 to the input of the attenuator 3, the output of which is connected to the load through the second isolating element at a constant voltage 4 5. The controlled source of DC voltage 6 is connected to the input of the attenuator 3 through the first element of the AC junction 7, and the measuring device (voltmeter) of the DC voltage 8 is connected to the output of the attenuator 3 through a second decoupling element AC voltage generator 9. The output AC voltage across one series connected rectifier 10 and filter 11 is connected to a control input of a controllable source of constant voltage output control apparatus 6. HA. The voltage of the alternating voltage generator operates as follows. The output voltage of the alternating voltage generator 1 is applied through the first direct current element 2, the attenuator 3 and the second direct current element 4 to the load. Using attenuator 3, the alternating voltage on the load is changed. A constant voltage from the output of a controlled voltage source 6 through the first element of the junction across alternating voltage 7, an attenuator 3 and the second element of the junction using alternating voltage 9 is applied to the measuring device B of the constant voltage. When the attenuation introduced by the attenuator 3 changes, it acts equally on both the variable and the constant voltage. For this reason, the change in the DC voltage measured by the device 8 corresponds to the variation of the AC voltage on the load 5. The output voltage of the generator 1 is also fed to the input of the rectifier 10. The turned-off voltage is filtered by the filter 11 and is fed to the control input source of constant voltage 6. If the alternating voltage on the load 5 is changed not by adjusting the attenuator 3, but due to the deviation of the output voltage of the generator 1 from

3 11505594

of a stable value, the corresponding voltage on the load 5 is also changing, and the control sig- nal-induced not only by adjusting the voltage at the input of the constant source. of the tenuator 3, but also by the deviations of the voltage 6, and consequently, the output voltage of the generator 1, the traveling constant voltage of this, as a result of which the source source rises. Thus, the measurement of the control of the output voltage P1G6OR 8 of the constant voltage of the alternating voltage generator records the changes in the over-voltage.

Claims (1)

DEVICE FOR CONTROL OF OUTPUT VOLTAGE OF THE CHANGE GENERATOR - NO VOLTAGE No. 718793, characterized in that, in order to improve accuracy, a rectifier and a filter are connected in series to it, while the input of the rectifier is connected to the output of the alternating voltage generator, and the filter output is connected to the control input of the constant voltage source.