RU94037490A - Dc drive - Google Patents

Dc drive

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Publication number
RU94037490A
RU94037490A RU94037490/07A RU94037490A RU94037490A RU 94037490 A RU94037490 A RU 94037490A RU 94037490/07 A RU94037490/07 A RU 94037490/07A RU 94037490 A RU94037490 A RU 94037490A RU 94037490 A RU94037490 A RU 94037490A
Authority
RU
Russia
Prior art keywords
rotational speed
power switch
electric drive
radio noise
control
Prior art date
Application number
RU94037490/07A
Other languages
Russian (ru)
Other versions
RU2074502C1 (en
Inventor
А.В. Костенко
Ю.Д. Харизман
А.Н. Сабуров
А.А. Соловьев
В.А. Сергеев
Original Assignee
Научно-производственное предприятие "Элим Энво"
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 Научно-производственное предприятие "Элим Энво" filed Critical Научно-производственное предприятие "Элим Энво"
Priority to RU94037490/07A priority Critical patent/RU2074502C1/en
Application granted granted Critical
Publication of RU2074502C1 publication Critical patent/RU2074502C1/en
Publication of RU94037490A publication Critical patent/RU94037490A/en

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  • Control Of Direct Current Motors (AREA)

Abstract

FIELD: electrical engineering; speed governing for DC motors supplied with power from AC mains, primality those driving domestic appliances, for stepless speed control within wide range. SUBSTANCE: DC drive has DC commutator motor, power switch, rectifier bridge, speed setting element, voltage regulator. In addition, it is provided with diode, resistor, comparator, voltage divider, and relevant connections between functional components. Power switch is built around field-effect transistor. EFFECT: enlarged speed control range, reduced radio noise, improved linearity of control characteristic. 2 dwg

Claims (1)

Изобретение относится к электротехнике и может быть использовано для регулирования частоты вращения электродвигателя постоянного тока при питании его от сети переменного тока преимущественно в устройствах бытового назначения, где требуется плавное управление частотой вращения в широком диапазоне частот, при этом уровень радиопомех по сети, создаваемых электроприводом, должен быть минимальным. Электропривод постоянного тока содержит коллекторный электродвигатель постоянного тока, силовой ключ, выпрямительный мост, задатчик частоты вращения, стабилизатор напряжения. Дополнительна введенные в электропривод диод, резистор, компаратор и делитель напряжения и соответствующие связи между функциональными элементами позволяют обеспечить широкий диапазон регулирования частоты вращения электродвигателя, минимальный уровень радиопомех, линейность регулирования. Силовой ключ выполнен на полевом транзисторе.The invention relates to electrical engineering and can be used to control the rotational speed of a DC motor when it is powered from an alternating current main, mainly in household devices, where smooth control of the rotational speed in a wide frequency range is required, while the level of radio noise on the network created by the electric drive should to be minimal. The direct current electric drive contains a DC collector electric motor, a power switch, a rectifier bridge, a rotational speed adjuster, a voltage stabilizer. An additional diode, resistor, comparator and voltage divider introduced into the electric drive and the corresponding connections between the functional elements make it possible to provide a wide range of regulation of the rotational speed of the electric motor, a minimum level of radio noise, and linearity of regulation. The power switch is made on a field effect transistor.
RU94037490/07A 1994-10-05 1994-10-05 Direct current electric drive RU2074502C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94037490/07A RU2074502C1 (en) 1994-10-05 1994-10-05 Direct current electric drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94037490/07A RU2074502C1 (en) 1994-10-05 1994-10-05 Direct current electric drive

Publications (2)

Publication Number Publication Date
RU2074502C1 RU2074502C1 (en) 1997-02-27
RU94037490A true RU94037490A (en) 1997-04-20

Family

ID=20161367

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94037490/07A RU2074502C1 (en) 1994-10-05 1994-10-05 Direct current electric drive

Country Status (1)

Country Link
RU (1) RU2074502C1 (en)

Also Published As

Publication number Publication date
RU2074502C1 (en) 1997-02-27

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Legal Events

Date Code Title Description
PC4A Invention patent assignment

Effective date: 20070202

PC43 Official registration of the transfer of the exclusive right without contract for inventions

Effective date: 20130226