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61 PBM
<el> ■ pulse-width modulation (PWM) -
62 Pulsbreitenmodulation
f (PBM) <el> ■ pulse-width modulation (PWM) -
63 Pulsweitenmodulation
f rar <el> ■ pulse-width modulation (PWM) -
64 ШИМ-инвертор
power-width modulation inverter, PWM inverterRussian-English dictionary of telecommunications > ШИМ-инвертор
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65 Basisbreitenmodulation
Basisbreitenmodulation f base-width modulationDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Basisbreitenmodulation
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66 Impulsbreitenmodulation
Impulsbreitenmodulation f (im)pulse-width modulationDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Impulsbreitenmodulation
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67 Pulsbreitenmodulation
Pulsbreitenmodulation f pulse-width modulationDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Pulsbreitenmodulation
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68 Pulsweitenmodulation
Pulsweitenmodulation f pulse width modulation, PWMDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Pulsweitenmodulation
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69 PWM
PWM f pulse-width modulation, PWMDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > PWM
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70 stromgeregelte Pulsweitenmodulation
Pulsweitenmodulation f: stromgeregelte Pulsweitenmodulation f current-controlled pulse-width-modulation, current-controlled PWMDeutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > stromgeregelte Pulsweitenmodulation
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71 pulssileveysmodulaatio
• pulse width modulation• PWM -
72 pulsbreedtemodulatie
• pulse-width modulationNederlands-Engels Technisch Woordenboek > pulsbreedtemodulatie
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73 широтно-импульсная модуляция
Русско-английский словарь по солнечной энергии > широтно-импульсная модуляция
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74 широтно-импульсная модуляция
Russian-English dictionary of railway terminology > широтно-импульсная модуляция
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75 широтно-импульсная модуляция
Русско-английский военный словарь > широтно-импульсная модуляция
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76 ШИМ
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77 Pulsbreitenmodulation
f DÜ pulse-width modulationDeutsch-Englisch Wörterbuch für Informatik > Pulsbreitenmodulation
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78 Pulsweitenmodulation
fpulse width modulation (PWM) -
79 ШИМ
Русско-английский словарь по информационным технологиям > ШИМ
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80 импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
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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
Русско-английский словарь нормативно-технической терминологии > импульсный источник электропитания с коммутацией тока на первичной стороне
См. также в других словарях:
Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… … Wikipedia
pulse width modulation — impulsų trukmės moduliavimas statusas T sritis automatika atitikmenys: angl. pulse duration modulation; pulse width modulation; pulse duration modulation; pulse length modulation; pulse width modulation vok. Pulsbreitenmodulation, f;… … Automatikos terminų žodynas
pulse-width modulation — impulsų trukmės moduliavimas statusas T sritis automatika atitikmenys: angl. pulse duration modulation; pulse width modulation; pulse duration modulation; pulse length modulation; pulse width modulation vok. Pulsbreitenmodulation, f;… … Automatikos terminų žodynas
pulse-width modulation — impulsų trukmės moduliavimas statusas T sritis fizika atitikmenys: angl. pulse duration modulation; pulse length modulation; pulse width modulation vok. Impulslängenmodulation, f; Pulsbreitenmodulation, f; Pulslängenmodulation, f rus. модуляция… … Fizikos terminų žodynas
Pulse-width modulation integrated circuit — A pulse width modulation integrated circuit, or PWMIC, describes any integrated circuit which uses pulse width modulation to regulate voltage. The most common example of a PWMIC is a group of MOSFETs … Wikipedia
Pulse Width Modulation — Pulse Width Modulation, PWM … Universal-Lexikon
Modulation De Largeur D'impulsion — La modulation de largeur d impulsions (MLI ; en anglais : Pulse Width Modulation, soit PWM), est une technique couramment utilisée pour synthétiser des signaux continus à l aide de circuits à fonctionnement tout ou rien, ou plus… … Wikipédia en Français
pulse width modulation — noun : pulse length modulation … Useful english dictionary
pulse width modulation — (PWM) Uncommon method of modulating a signal, in which the duration of a pulse width is varied according to some characteristic of the modulating signal … IT glossary of terms, acronyms and abbreviations
modulation d'impulsions en durée — impulsų trukmės moduliavimas statusas T sritis automatika atitikmenys: angl. pulse duration modulation; pulse width modulation; pulse duration modulation; pulse length modulation; pulse width modulation vok. Pulsbreitenmodulation, f;… … Automatikos terminų žodynas
modulation d'impulsions en largeur — impulsų trukmės moduliavimas statusas T sritis automatika atitikmenys: angl. pulse duration modulation; pulse width modulation; pulse duration modulation; pulse length modulation; pulse width modulation vok. Pulsbreitenmodulation, f;… … Automatikos terminų žodynas
