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1 линейный нерегулируемый источник электропитания
линейный нерегулируемый источник электропитания
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Рис. ABBThe AC mains voltage (50/60 Hz) applied at the input side is transformed to a lower level and rectifi ed by a subsequent rectifi er. Then, a capacitor C smoothes the output voltage of the rectifi er. The dimension of the transformer depends on the desired output voltage.
Due to the design of the electric circuit, the output voltage directly depends on the input voltage which in turn means that variations of the mains voltage have direct effect to the output side. Since no regulation is done on the secondary side, the residual ripple of the output voltage is in the dimension of volts and specifi ed as a percentage of the DC output voltage.
Due to their simple design, unregulated power supplies are very robust and durable. Their effi ciency is approx. 80 %.
Unregulated power supplies are primarily used for simple electromechanical applications that do not require exact output voltages, e.g. for the supply of contactors.
[ABB]Тематики
Синонимы
EN
Русско-английский словарь нормативно-технической терминологии > линейный нерегулируемый источник электропитания
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2 нестабилизированный источник питания
Telecommunications: unregulated power supplyУниверсальный русско-английский словарь > нестабилизированный источник питания
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3 питание нерегулируемым постоянным током
питание нерегулируемым постоянным током
(класс 3, тип В, группа III по МЭК)
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[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
Русско-английский словарь нормативно-технической терминологии > питание нерегулируемым постоянным током
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4 питание нерегулируемым постоянным током
Русско-английский словарь по электроэнергетике > питание нерегулируемым постоянным током
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5 линейный регулируемый источник электропитания
линейный регулируемый источник электропитания
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Рис. ABBThe AC mains voltage is transformed to a lower level, rectified and smoothed by capacitor C1. Then, voltage regulation is performed, typically using a power transistor. The power transistor acts as a variable resistor, controlled to keep the output voltage constant.
The efficiency of linearly regulated power supplies is only approx. 50 % due to the high losses inside the power transistor. The remaining energy is emitted in the form of heat. Due to this, sufficient ventilation is required to cool the power supply. Compared with unregulated power supplies, linearly regulated power supplies have a very small residual ripple of the output voltage (in the dimension of millivolts).
Linearly regulated power supplies are used for all applications that require a very exact output voltage, e.g. for highly precise medical devices.
[ABB]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > линейный регулируемый источник электропитания
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6 питание нерегулируемым постоянным током
1) Engineering: unregulated DC power supply2) Electrical engineering: unregulated dc power supply (класс 3, тип В, группа III по МЭК)Универсальный русско-английский словарь > питание нерегулируемым постоянным током
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7 расход
consumption, demand, flow, flux, modulus of flow, (напр. бурового раствора) circulation rate, flow rate, ( воды) supply rate, throughput rate, rate, ( поверхностного стока) runoff, water* * *расхо́д м.1. ( потребление) consumption2. (количество вещества, проходящее через определённое сечение за единицу времени) rate of flow, flow rate3. (диапазон отклонения штурвала, педалей и т. п.) ав. travel (of the respective control)4. (финансовый, обычно мн.) costs, expensesпокрыва́ть расхо́ды на, напр. амортиза́цию — bear, e. g., the depreciation chargesамортизацио́нные расхо́ды — depreciation chargesрасхо́д воды́ ( из водохранилища) — water dischargeрасхо́д воды́, забо́рный — drawoff dischargeрасхо́д воды́ на вы́ходе — outlet dischargeрасхо́д воды́, незарегули́рованный — unregulated dischargeрасхо́д воды́, па́водочный — flood dischargeрасхо́д воды́, су́точный — daily dischargeрасхо́д воды́ че́рез водосли́в — spillway discharge, weir flowрасхо́д горю́чего ( убыль из баков) ав. — depletion of the fuelрасхо́д ко́кса, уде́льный — coke rateко́свенные расхо́ды — indirect costsма́ссовый расхо́д — mass flow rateмину́тный расхо́д — minute flow rateнакладны́е расхо́ды — overhead charges, overhead expenses, overheadsрасхо́д на км (напр. масла) авто — consumption (e. g., of oil) per kmрасхо́д па́ра, уде́льный — steam rateпостоя́нные расхо́ды — fixed chargesтеку́щие расхо́ды — running expensesрасхо́д тепла́ (из химического реактора, в противоположность приходу) — heat abstraction, heat removalрасхо́д тепла́ на образова́ние ороше́ния фле́гмы нефт. — reflux dutyрасхо́д тепла́, уде́льный — heat rateрасхо́д то́ка — current consumption, current drainрасхо́д то́плива, уде́льный — тепл. метал. fuel rate; авто specific fuel consumptionцеховы́е расхо́ды — shop costsэксплуатацио́нные расхо́ды — maintenance charges, maintenance [operating] costsрасхо́д эне́ргии на со́бственные ну́жды — auxiliary [house] power requirementsрасхо́д энергоресу́рсов ( в балансе промышленного предприятия) — consumption of services, consumption of utilities (steam, water, air, fuels, electricity, etc.)* * *1) charge; 2) consumption
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