SU139740A1 - Apparatus for obtaining a 90 ° phase shift between two variable voltages - Google Patents

Apparatus for obtaining a 90 ° phase shift between two variable voltages

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Publication number
SU139740A1
SU139740A1 SU696350A SU696350A SU139740A1 SU 139740 A1 SU139740 A1 SU 139740A1 SU 696350 A SU696350 A SU 696350A SU 696350 A SU696350 A SU 696350A SU 139740 A1 SU139740 A1 SU 139740A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phase shift
obtaining
variable voltages
frequency
voltages
Prior art date
Application number
SU696350A
Other languages
Russian (ru)
Inventor
М.А. Раков
Original Assignee
М.А. Раков
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by М.А. Раков filed Critical М.А. Раков
Priority to SU696350A priority Critical patent/SU139740A1/en
Application granted granted Critical
Publication of SU139740A1 publication Critical patent/SU139740A1/en

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  • Supply And Distribution Of Alternating Current (AREA)
  • Ac-Ac Conversion (AREA)

Description

Известны устройства дл  получени  90° сдвига фаз между двум  переменными напр жени ми, основанные на делении частоты двух противофазных переменных напр жений.Devices are known for obtaining a 90 ° phase shift between two alternating voltages based on the division of the frequency of two antiphase alternating voltages.

Предлагаемое устройство отличаетс  от известных тем, что в нем применены магнитные делители частоты, выполненные каждый на двух отдельных магнитопроводах с объединенными первичными обмотками и обмотками подмагничивани .The proposed device differs from the known ones in that it uses magnetic frequency dividers, each made on two separate magnetic cores with combined primary windings and bias windings.

Такое выполнение устройства позвол ет улучшить стабильность сдвига фаз при изменени х амплитуды питающих напр жений, а также повысить надежность его работы.Such an embodiment of the device makes it possible to improve the stability of the phase shift with changes in the amplitude of the supply voltages, as well as to increase the reliability of its operation.

На чертеже изображена принципиальна  схема предлагаемого устройства.The drawing shows a schematic diagram of the proposed device.

Устройство содержит четыре тороидальных сердечника Т и две емкости С. Части устройства /4 и Б (обведенные пунктиром) собраны по схеме делени  частоты на два, соответственно частота тока в выходных обмотках W,,,,,: составл ет половину частоты тока too в обмотках W, возбуждени . Ток подмагничивани  /„ подаетс  в обе части А ц Б устройства таким образом, что ток возбуждени  i в этих част х устройства получает сдвиг 180°. Этот .угол на половинной частоте преобразуетс  в угол 90°. Посто нный и переменный токи .г„ и ico последовательно подаютс  на вход обеих частей А н Б устройства , следствием чего  вл етс  точное значение сдвига фаз 90°. Устройство может использоватьс  в качестве эталона сдвига фаз 90° в широком диапазоне частоты и напр жени  возбуждени , а в частности , в фазочувствительных вольтметрах, компенсаторах переменного тока.The device contains four toroidal cores T and two capacitors C. Parts of the device / 4 and B (circled in dotted lines) are assembled according to the frequency division by two, respectively, current frequency in the output windings W ,,,,,: is half the frequency of the current too in the windings W, arousal. A bias current (A) is applied to both parts of the A c B device in such a way that the excitation current i in these parts of the device receives a 180 ° shift. This angle at half the frequency is converted to a 90 ° angle. The constant and alternating currents .g and ico are successively fed to the input of both parts of the A and B devices, the consequence of which is an exact value of the phase shift of 90 °. The device can be used as a reference for a phase shift of 90 ° in a wide range of frequency and excitation voltage, and in particular, in phase-sensitive voltmeters, alternators of alternating current.

№ 139740№ 139740

Предмет изобретени Subject invention

Устройство дл  получени  90° сдвига фаз между двум  переменными напр жени ми, отличающеес  тем, что, с целью улучшени  стабильности сдвига фаз при изменени х амплитуды питающих напр жений и повышени  надежности его работы, в нем применены магнитные делители частоты, выполненные каждый на двух отдельных магнитопроводах с объединенными первичными обмотками и обмотками подмагничивани .A device for obtaining a 90 ° phase shift between two variable voltages, characterized in that, in order to improve the stability of the phase shift with changes in the amplitude of the supply voltages and increase its reliability, it uses magnetic frequency dividers, each made on two separate magnetic conductors with combined primary and bias windings.

о  about

SU696350A 1961-02-06 1961-02-06 Apparatus for obtaining a 90 ° phase shift between two variable voltages SU139740A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU696350A SU139740A1 (en) 1961-02-06 1961-02-06 Apparatus for obtaining a 90 ° phase shift between two variable voltages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU696350A SU139740A1 (en) 1961-02-06 1961-02-06 Apparatus for obtaining a 90 ° phase shift between two variable voltages

Publications (1)

Publication Number Publication Date
SU139740A1 true SU139740A1 (en) 1961-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU696350A SU139740A1 (en) 1961-02-06 1961-02-06 Apparatus for obtaining a 90 ° phase shift between two variable voltages

Country Status (1)

Country Link
SU (1) SU139740A1 (en)

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