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1 transistor power supply
English-German dictionary of Electrical Engineering and Electronics > transistor power supply
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2 transistor power supply
supply current — ток питания; питающий ток
English-Russian dictionary of Information technology > transistor power supply
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3 transistor power supply
Телекоммуникации: транзисторный источник питанияУниверсальный англо-русский словарь > transistor power supply
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4 transistor power supply
• transistoriteholähde -
5 transistor power supply
English-Russian dictionary of modern telecommunications > transistor power supply
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6 transistor power supply
English-Russian dictionary of microelectronics > transistor power supply
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7 external power supply
1. внешний источник питания2. внешний источник энергииelectrical supply — источник тока; подача электроэнергии
English-Russian big polytechnic dictionary > external power supply
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8 uninterrupted power supply
English-Russian big medical dictionary > uninterrupted power supply
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9 uninterruptible power supply
English-Russian big medical dictionary > uninterruptible power supply
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10 stabilized power supply
supply voltage — сетевое напряжение; напряжение питания
English-Russian dictionary on nuclear energy > stabilized power supply
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11 diesel-generator standby power supply
supply voltage — сетевое напряжение; напряжение питания
English-Russian dictionary on nuclear energy > diesel-generator standby power supply
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12 primary switch mode power supply
- импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
-In primary switch mode power supplies, the AC mains voltage is first rectified and smoothed and then chopped ("switched"). Chopping means that the DC voltage is switched periodically at a frequency of 40 to 200 kHz using a power transistor.
In contrast to linearly regulated power supplies, the power transistor does not act as a variable resistor but as a switch instead. This generates a square-wave AC voltage that is transformed to the secondary circuit using a high-frequency transformer. In the secondary circuit, the voltage is rectifi ed and smoothed. The quantity of energy transformed to the secondary circuit is controlled, depending on the load, by varying the chopping rate. The longer the transistor is conductive, the higher is the quantity of energy transformed to the secondary circuit ( pulse width modulation).
Due to the use of high-frequency AC voltage, primary switch mode power supplies have the decisive advantage that their transformer can be of much smaller size than required for the transformation of low frequencies. This reduces the weight and the dissipation inside the unit. The effi ciency of these units is between 85 and 95 %. Since the output voltage does not directly depend on the input voltage, these units can be used for a wide input voltage range and can even be supplied with DC voltage. Furthermore, it is possible to buffer short-time mains voltage breakdowns up to 200 ms. However, the power failure buffering time is limited by the size of capacitor C1 since a longer buffering time requires a higher capacity and thus a bigger size of the capacitor. Especially in case of small power supplies this is not desirable.
Therefore, a practicable compromise has to be made between the size of the power supply and the buffering time.
Primary switch mode power supplies can be used for all purposes. For example, they are suitable for the supply of all kind of electronics as well as for electromechanical applications.
[ABB]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > primary switch mode power supply
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13 linearly regulated power supply
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
Англо-русский словарь нормативно-технической терминологии > linearly regulated power supply
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14 transistor
1. транзистор2. транзисторныйThe English-Russian dictionary general scientific > transistor
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15 power
nNUCL conjunto de fusión-fisión rápida a potencia térmica cero mAIR TRANSP velocidad máxima en vuelo nivelado con potencia nominal f1 nAUTO fuerza f, potencia fELEC, ELEC ENG energía f, potencia fMATH exponente m, potencia fMECH, MECH ENG energía f, energía eléctrica f, fuerza f poder m, potencia f, energy supply suministro de energía m, electricity supply suministro eléctrico m, fOPT potencia fTELECOM energía eléctrica f2 vtMECH ENG impulsar -
16 power
1) сила
2) вальный
3) мощность
4) степенной
5) электропитающий
6) электросила
7) электросиловой
8) энергетика
9) энергетический
10) <engin.> питать
11) степень
12) показатель степени
13) энергия
14) власть
15) мощь
16) способность
17) степенный
18) <math.> мощность множества
– A-F power
– absorb power
– active power
– antenna power
– available power
– average power
– axiom of power
– base of the power
– base power
– brake power
– calorific power
– cementing power
– continuous power
– coupling power
– cut power
– design power
– desulphurizing power
– dissipated power
– dissipation power
– draugth power
– driving power
– echo-signal power
– electric power
– emergency power
– exchange power
– exponent of power
– filament power
– fourth power
– fractional power
– heater power
– horse power
– idling power
– indicated power
– input power
– instantaneous power
– landing power
– leakage power
– loss power
– maximum power
– moderating power
– noise power
– nominal power
– nuclear power
– odal power
– ouput power
– output power
– oxidation power
– peak power
– power amplification
– power amplifier
– power bay section
– power cable
– power capacitor
– power circuit
– power cleaver
– power conditions
– power conduit
– power consumption
– power contactor
– power cord
– power cultivator
– power cylinder
– power delivered
– power density
– power divider
– power drain
– power efficiency
– power electronics
– power engineer
– power engineering
– power facilities
– power factor
– power failure
– power feed
– power flux
– power function
– power gas
– power grader
– power grid
– power hack-saw
– power hammer
– power handling
– power house
– power imputs
– power input
– power is transmitted
– power isolator
– power klystron
– power level
– power levelling
– power line
– power load
– power loss
– power mean
– power meter
– power miser
– power of a point
– power of an engine
– power oil
– power pack
– power penetration
– power plant
– power press
– power pulser
– power pump
– power reactor
– power rectifier
– power reserve
– power residue
– power ringing
– power scraper
– power series
– power setting
– power shaft
– power shortage
– power slewing
– power source
– power spectrum
– power splitter
– power station
– power supply
– power switch
– power take-off
– power takeoff
– power thyristor
– power tool
– power transfer
– power transformer
– power transistor
– power transmission
– power trunk
– power unit
– power valve
– power water
– power wiring
– pump power
– purchasing power
– put out power
– radiating power
– raising to a power
– rated power
– reactive power
– reduced power
– required power
– resolving power
– saving of power
– shaft power
– short-circuit power
– signal power
– solar power
– sound power
– source power
– starting power
– supply power
– take-off power
– thermonuclear power
– to the second power
– total power
– tractive power
– trasnfer power
– turn on power
– turn up power
– under own power
– unit power
– useful power
absolute thermoelectric power — коэффициент термоэлектродвижущей силы
atomic power station — атомная станция, АЭС
auxiliary power requirements — расход энергии на собственные нужды
coal-burning power plant — электростанция на твердом топливе
distribution power transformer — трансформатор силовой линейный
electric power plant — силовая электроустановка, <engin.> электростанция
engine-propeller power plant — винтомоторная силовая установка
hydroelectric power plant — <energ.> гидростанция, гидроэлектростанция, гэс
industrial power association — <engin.> объединение производственное энергетическое
intelligent power management — интеллектуальное управление электропитанием
power flux density — <phys.> плотность потока мощности
power generating unit — <engin.> энергоблок
power per liter of displacement — <engin.> литровая мощность
power plant topping — <engin.> надстройка
power ringing generator — телефонный машинный индуктор, индуктор машинный
power supply unit — < radio> агрегат питания
propeller power coefficient — <phys.> коэффициент мощности винта
radio-frequency power amplifier — генератор с внешним возбуждением
unit power rating — <engin.> мощность удельная
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17 current supply
1. подвод тока2. электропитаниеdual supply — двойное электропитание; двойная подача
3. источник токаelectrical supply — источник тока; подача электроэнергии
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18 medical gas supply
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19 mains supply
supply voltage — сетевое напряжение; напряжение питания
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20 control and supply
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