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41 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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42 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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43 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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44 start
1) начало || начинать2) старт; отправление || стартовать; отправлять(ся)3) (за)пуск; включение || (за)пускать; включать7) лесн. коробиться( о сыром материале)•start from standstill — (за)пуск из неподвижного состояния;to start up — (за)пускать; вводить в действие;start with auxiliary phase — пуск ( однофазного асинхронного двигателя) с помощью вспомогательной обмотки-
across-the-line start
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asynchronous start
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autotransformer start
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auxiliary motor start
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capacitor start
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closed-circuit transition autotransformer start
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cold start
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controlled frequency start
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controlled voltage start
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cycle start
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direct-on-line start
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drift start
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hot start
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idle start
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impedance start
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load start
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multiple start
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multipoint start
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neutral reactor start
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open-circuit transition autotransformer start
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overvoltage start
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part-winding start
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program start
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reactance start
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reactor start
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reconnection start
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reduced-current start
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reduced-voltage start
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remote start
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resistance start
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resistor start
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rheostatic start
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rotor-resistance start
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sequence start
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series-connected starting-motor start
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series-parallel start
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slow start
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smooth start
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speed-limit start
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split-phase start
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star-delta start
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start of printing
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stator resistance start
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stepless start
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stepped start
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sustained start
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time-limit start
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trial start
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variable-frequency start
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variable-resistance start
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wye-delta start
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Y-delta start -
45 current
12 n (AmE) (cf mains BrE )ELEC, ELEC ENG corriente f, corriente eléctrica f, red de distribución eléctrica fHYDROL, OCEAN corriente f, corriente marina fPHYS corriente f, corriente eléctrica fRAD PHYS, TELECOM corriente eléctrica fTV suministro principal m (AmL), corriente f, red eléctrica fWATER red de distribución f, tubería principal fWATER TRANSP navigation tides corriente f, corriente marina f -
46 circuit
2) канал3) т. граф. простая цепь, контур•- active circuit
- acyclic circuit
- adding circuit
- add circuit
- addressing circuit
- advancing circuit
- alarm circuit
- amplifying circuit
- analogous circuit
- analog circuit
- AND-to-OR circuit
- antialiasing circuit
- anticoincidence circuit
- antihunting circuit
- antihunt circuit
- aperiodic circuit
- arithmetic circuit
- arithmetical circuit
- astable circuit
- averaging circuit
- balanced circuit
- basis circuit
- beam-lead integrated circuit
- benchmark circuit
- binary-valued digital circuit
- binary-valued circuit
- bipolar circuit
- bistable circuit
- blanking circuit
- bleeder circuit
- bridge circuit
- buffer circuit
- carry circuit
- character selection circuit
- checking circuit
- check circuit
- clamping circuit
- clocked circuit
- clock-recovery circuit
- closed circuit
- code disjoint circuit
- coincidence circuit
- combinational circuit
- combinatorial circuit
- communication circuit
- comparator circuit
- compare circuit
- comparison circuit
- complementary circuit
- complementary integrated circuit
- complementary transistor logic circuit
- complex function circuit
- computer circuit
- computer test circuit
- computing circuit
- control circuit
- core-diode circuit
- core-transistor circuit
- correcting circuit
- correction circuit
- counter circuit
- counting circuit
- coupling circuit
- current-limit circuit
- current-operated circuit
- current-summation circuit
- custom product integrated circuit
- custom integrated circuit
- custom-wired integrated circuit
- cutoff circuit
- cycle circuit
- cyclic circuit
- dead-on-arrival integrated circuit
- decode circuit
- decoding circuit
- deenergizing circuit
- deflection circuit
- delay circuit
- densely packed circuit
- differentiating circuit
- digital computing circuit
- diode circuit
- diode-coupled circuit
- diode-transistor logic circuit
- direct-coupled circuit
- direct-coupled transistor logic circuit
- direct-current circuit
- discrete component circuit
- discrete logic-level
- discrete wired circuit
- display circuit
- divide-by-two circuit
- dividing circuit
- double-sided printed circuit
- doubling circuit
- drive circuit
- dry circuit
- dual circuit
- duplex circuit
- Eccles-Jordan circuit
- edge-activated circuit
- emitter-coupled circuit
- emitter-coupled logic circuit
- emitter-emitter-coupled logic circuit
- equality circuit
- equivalent circuit
- etched circuit
- Euler circuit
- except circuit
- fanout-free circuit
- fast-switching circuit
- fault detection circuit
- fault-free circuit
- fault-secure circuit
- faulty circuit
- feedback circuit
- ferrite-diode circuit
- ferrite-transistor circuit
- ferroresonant computing circuit
- film integrated circuit
- flag-testing circuit
- flat-pack integrated circuit
- flexible printed circuit
- flexible circuit
- flip-chip integrated circuit
- flip-flop circuit
- frame-grounding circuit
- frequency-halving circuit
- function circuit
- gate circuit
- Goto-pair circuit
- half-duplex circuit
- halving circuit
- Hamilton circuit
- hand-designed circuit
- hardwired circuit
- high-speed circuit
- high-threshold logic circuit
- holding circuit
- hybrid circuit
- idler circuit
- imbedded circuit
- IMOS circuit
- impulse circuit
- inhibit circuit
- input circuit
- integrated circuit
- integrating circuit
- integro-differential circuit
- interchange circuit
- interface circuit
- interfacing circuit
- interlock circuit
- invert circuit
- ion-implanted MOS circuit
- irredundant circuit
- Josephson integrated circuit
- junction transistor circuit
- ladder circuit
- lag-lead circuit
- laminar circuit
- large arithmetic circuit
- large-scale integrated circuit
- large-scale integration circuit
- latch circuit
- lead-lag circuit
- leased circuit
- level circuit
- linear circuit
- linear integrated circuit
- linearity circuit
- liquid logic circuit
- load circuit
- locked pair circuit
- locking circuit
- logic circuit
- logical circuit
- low-threshold integrated circuit
- LSI circuit
- lumped circuit
- magnetic circuit
- magnetic-core circuit
- majority circuit
- match circuit
- material equivalence circuit
- matrix circuit
- maximum-remembering circuit
- measuring circuit
- medium-scale integration circuit
- memory circuit
- memory-decoder circuit
- message circuit
- metal-oxide-semiconductor circuit
- microamp circuit
- microelectronic integrated circuit
- microminiature circuit
- microwave circuit
- mil spec integrated circuit
- milliwatt circuit
- miniature circuit
- minimum-remembering circuit
- mixed-level circuit
- mixing circuit
- modularized circuit
- molecular integrated circuit
- monitoring circuit
- monolithic integrated circuit
- monostable circuit
- MOS circuit
- MOS integrated circuit
- MOS LSI circuit
- MSI circuit
- multichip integrated circuit
- multifunction integrated circuit
- multilayer circuit
- multilevel circuit
- multiple output circuit
- multiplying circuit
- multipoint circuit
- multistable circuit
- multistage circuit
- nanosecond circuit
- n-channel circuit
- network circuit
- noise-balancing circuit
- noncoincidence circuit
- noncutoff circuit
- non-self-checking circuit
- one-core-per-bit circuit
- one-generator equivalent circuit
- one-out-of-four selecting circuit
- one-shot circuit
- open circuit
- optical commutation circuit
- optical memory circuit
- optically coupled circuit
- optoelectronic circuit
- output circuit
- packaged circuit
- packed circuit
- p-channel circuit
- phantom circuit
- phase-comparison circuit
- phase-inverting circuit
- picosecond circuit
- pilot circuit
- plastic-embedded circuit
- point-to-point circuit
- power circuit
- power monitoring circuit
- power-fail circuit
- printed circuit
- priority circuit
- propagation circuit
- protection circuit
- pulse circuit
- pulse-actuated circuit
- pulse-broadening circuit
- pulse-regenerating circuit
- pulse-shaping circuit
- pulse-stretching circuit
- pulse-switching circuit
- pumped tunnel-diode transistor logic circuit
- pumping circuit
- quenching circuit
- race-free circuit
- radio-frequency circuit
- random-logic circuit
- ratioed circuit
- reading circuit
- received-data circuit
- receiving circuit
- reconfigurable integrated circuit
- redundant circuit
- reference circuit
- refreshing circuit
- relaxation circuit
- reset circuit
- retriggerable circuit
- rewriting circuit
- ring circuit
- rounding circuit
- sample-hold circuit
- saturated circuit
- scale-of-N circuit
- scale-of-two circuit
- scaling circuit
- schematic circuit
- Schmitt trigger circuit
- Schmitt circuit
- screen printed circuit
- selection circuit
- select circuit
- self-checking circuit
- self-testing circuit
- self-timed circuit
- semiconductor circuit
- send-request circuit
- sequential circuit
- shifting circuit
- shift circuit
- short circuit
- shunt-peaking circuit
- sign-controlled circuit
- silicon integrated circuit
- silicon-on-sapphire integrated circuit
- simplex circuit
- single-chip circuit
- single-ended circuit
- single-level circuit
- single-phase circuit
- single-shot circuit
- small-scale integration circuit
- solid-state circuit
- solid circuit
- SOS integrated circuit
- squaring circuit
- SSI circuit
- stabilizing circuit
- stamped circuit
- start-stop circuit
- steering circuit
- storage circuit
- storage-selection circuit
- strongly fault-secure circuit
- subtraction circuit
- summing circuit
- sweep circuit
- switching circuit
- symbolic circuit
- synchronizing circuit
- synthesis circuit
- thick-film circuit
- thin-film circuit
- threshold circuit
- time-anticoincidence circuit
- time-base circuit
- time-coincidence circuit
- time-delay circuit
- toll circuit
- totally self-checking circuit
- transistor circuit
- transistor-core circuit
- transistor-resistor circuit
- transistor-transistor-logic circuit
- translation circuit
- transmitted-data circuit
- transmitting circuit
- tree circuit
- trigger -action circuit
- trigger circuit
- trunk circuit
- tunnel diode circuit
- twin-tunnel-diode circuit
- twin circuit
- two-cores-per-bit circuit
- two-input circuit
- two-level circuit
- two-way circuit
- ultra-large-scale integration circuit
- unidirectional circuit
- unpackaged circuit
- unpacked circuit
- very-high-speed integrated circuit
- very-large-scale integration circuit
- virtual circuit
- VLSI circuit
- voice circuit
- voice-grade circuit
- voltage-control circuit
- voltage-doubling circuit
- voltage-multiplying circuit
- voltage-summation circuit
- voter circuit
- wave-shaping circuit
- whole-wafer circuit
- wired AND circuit
- wired OR circuit
- wire-wrapped circuit
- writing circuit
- zero circuitEnglish-Russian dictionary of computer science and programming > circuit
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47 module
1) модульг) мерило; образец; эталон2) блок•- bubble module
- capacitor-resistor module
- columnar module
- communications module
- compare-exchange module
- constraint module
- continuity Rambus in-line memory module
- continuity RIMM module
- control module
- controlled attachment module
- cordwood module
- dictation speech recognition module
- digital module
- digital input module
- digital output module
- disk module
- Doppler radar module
- double-ended module
- DSR module
- dummy module
- Ethernet switching module
- function-interconnection module
- generic module
- hardware module
- hierarchical module
- honeycomb module
- host attachment module
- IC module
- instrument module
- instrumentation module
- leaded module
- leadless module
- load module
- logic module
- lunar excursion module
- MA module
- memory control module
- microcircuit module
- microminiature module
- MIDI sound module
- mobile module
- multichip module
- multifunctional module
- multiply-add module
- NetWare loading module
- network interface module
- not reusable module
- object module
- PCM interface module
- pellet module
- planar module
- plug-in module
- polynomial module
- potted module
- prediction error module
- protocol module
- railroad module
- Rambus in-line memory module
- reconfigurable module
- reenterable module
- register-transfer module
- relocatable module
- resource module
- sealed module
- self-descriptive module
- self-timed module
- serially reusable module
- service interface module
- single-ended module
- single in-line memory module
- single in-line package memory module
- software module
- solid-state module
- speech recognition module
- SR module
- stacked wafer module
- standard electronic module
- subscriber identity module
- text-to-speech module
- traffic interface module
- TTS module
- universal logic module
- video processor module
- virtual loadable module
- voltage regulation module -
48 module
1) модульг) мерило; образец; эталон2) блок•- bubble module
- capacitor-resistor module
- columnar module
- communications module
- compare-exchange module
- constraint module
- continuity Rambus in-line memory module
- continuity RIMM module
- control module
- controlled attachment module
- cordwood module
- dictation speech recognition module
- digital input module
- digital module
- digital output module
- disk module
- Doppler radar module
- double-ended module
- DSR module
- dummy module
- Ethernet switching module
- function-interconnection module
- generic module
- hardware module
- hierarchical module
- honeycomb module
- host attachment module
- IC module
- instrument module
- instrumentation module
- leaded module
- leadless module
- load module
- logic module
- lunar excursion module
- MA module
- memory control module
- microcircuit module
- microminiature module
- MIDI sound module
- mobile module
- multichip module
- multifunctional module
- multiply-add module
- NetWare loading module
- network interface module
- not reusable module
- object module
- PCM interface module
- pellet module
- planar module
- plug-in module
- polynomial module
- potted module
- prediction error module
- protocol module
- railroad module
- Rambus in-line memory module
- reconfigurable module
- reenterable module
- register-transfer module
- relocatable module
- resource module
- sealed module
- self-descriptive module
- self-timed module
- serially reusable module
- service interface module
- single in-line memory module
- single in-line package memory module
- single-ended module
- software module
- solid-state module
- speech recognition module
- SR module
- stacked wafer module
- standard electronic module
- subscriber identity module
- text-to-speech module
- traffic interface module
- TTS module
- universal logic module
- video processor module
- virtual loadable module
- voltage regulation moduleThe New English-Russian Dictionary of Radio-electronics > module
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