SU114689A1 - Method for increasing the stability of suppression of side frequency components in multiphase single-band signal formation schemes - Google Patents

Method for increasing the stability of suppression of side frequency components in multiphase single-band signal formation schemes

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Publication number
SU114689A1
SU114689A1 SU576462A SU576462A SU114689A1 SU 114689 A1 SU114689 A1 SU 114689A1 SU 576462 A SU576462 A SU 576462A SU 576462 A SU576462 A SU 576462A SU 114689 A1 SU114689 A1 SU 114689A1
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SU
USSR - Soviet Union
Prior art keywords
suppression
stability
increasing
band signal
frequency components
Prior art date
Application number
SU576462A
Other languages
Russian (ru)
Inventor
М.В. Верзунов
Original Assignee
М.В. Верзунов
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.В. Верзунов filed Critical М.В. Верзунов
Priority to SU576462A priority Critical patent/SU114689A1/en
Application granted granted Critical
Publication of SU114689A1 publication Critical patent/SU114689A1/en

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Description

Предлагаемый способ повышени  устойчивости подавлени  побочных частот имеет цель ра1сширить возможности использовани  метода многофазной модул ции.The proposed method for increasing the stability of side frequency suppression is aimed at expanding the possibilities of using the multiphase modulation method.

Изменение режимов ламп в многофазной схеме формировани  однополосного сигнала вызывает неполное подавление несущей и составл ющих второй боковой полосы. Повыщение устойчивости подавлени  несущей и второй боковой полосы достигаетс  применением в многофазной схеме отрицательной обратной св зи по посто нному току и звуковой частоте.A change in lamp modes in a multiphase single-band signal formation scheme causes incomplete suppression of the carrier and components of the second sideband. Improving the stability of the suppression of the carrier and the second sideband is achieved by applying negative feedback on the current and sound frequency in a multiphase circuit.

Сущность изобретени  по сн етс  на примере четырехфазного модул тора .The invention is illustrated by the example of a four phase modulator.

На чертеже показан один балансный модул тор четырехфазной схемы . Полна  схема ,состоит из двух балансных модул торов.The drawing shows one balanced four-phase modulator. The complete circuit consists of two balanced modulators.

Отрицательна  обратна  св зь по посто нной составл ющей анодного тока ламп каждого балансного модул тора сохран ет посто нство амплитуд колебаний несущих частот при изменении режимов ламп- Такой же эффект оказывает отрицательна  обратна  св зь по току звуковой частоты в отнощении сохранени  посто н;ства составл ющих второй боковой полосы.Negative feedback on the constant component of the anode current of the lamps of each balanced modulator preserves the amplitude of the oscillations of the carrier frequencies when changing the modes of the lamps. The same effect is exerted by the negative feedback on the current of the audio frequency with respect to the preservation of the constants of the components second sideband.

Отрицательна  обратна  св зь в схеме модул тора осуществл етс  применением цепочек из сопротивлений и конденсаторов, включенных в катодные цепи ламп схемы.Negative feedback in the modulator circuit is carried out using chains of resistors and capacitors included in the cathode circuit of the circuit lamps.

С целью повыщени  подавлени  несущей частоты, вторична  обмотка трансформатора Т выполнена в виде двух обмоток, включенных так, что изменение тока одной из ламп вызывает одновременное изменение напр жени  смещени  на сетках обоих ламп модул тора таким образом, что разность токов первой гармоники в его нагрузке стремитс  к нулю.In order to increase the suppression of the carrier frequency, the secondary winding of the transformer T is made in the form of two windings connected in such a way that a change in the current of one of the lamps causes a simultaneous change in the bias voltage on the grids of both lamps of the modulator in such a way that the difference of the currents of the first harmonic in its load tends to zero.

Отрицательна  обратна  св зь, с целью повышени  устойчивостиNegative feedback to increase stability

подавлени побочных частот, примен етс  и при трехфазной модул ции. При этом, обратной св зью охватываетс  лампа каждого из трех отдельных модул торов.side-frequency suppression, also used for three-phase modulation. In this case, the feedback covers the lamp of each of the three separate modulators.

Предмет изобретени  Subject invention

,.- : t Способ -пввмшени  устойчивости подавлени  составл ющих побочных частот в многофазных схемах формировани  однополосного сигнала на балансном модул торе, отличающийс  тем, что в каждой лампе модул торов, с целью уменьшени  вли ни  изменени  режима ее работы, примен ют отрицательную обратную св зь одновременно по посто нному току и звуковой частоте., .-: t Method —substance suppression of component side frequencies in multiphase single-sided signal generation circuits on a balanced modulator, characterized in that in each modulator lamp, in order to reduce the effect of changing its mode of operation, negative feedback is applied d simultaneously at constant current and sound frequency.

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SU576462A 1956-03-10 1956-03-10 Method for increasing the stability of suppression of side frequency components in multiphase single-band signal formation schemes SU114689A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU576462A SU114689A1 (en) 1956-03-10 1956-03-10 Method for increasing the stability of suppression of side frequency components in multiphase single-band signal formation schemes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU576462A SU114689A1 (en) 1956-03-10 1956-03-10 Method for increasing the stability of suppression of side frequency components in multiphase single-band signal formation schemes

Publications (1)

Publication Number Publication Date
SU114689A1 true SU114689A1 (en) 1957-11-30

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Country Status (1)

Country Link
SU (1) SU114689A1 (en)

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