PWM rectifier

PWM rectifier

PWM rectifier is an AC to DC power converter, which is implemented using forced commutated power electronic semiconductor switches. Today, insulated gate bipolar transistors are typical switching devices. Different from diode bridge rectifiers, PWM rectifiers achieve bidirectional power flow. In frequency converters this property makes it possible to perform regenerative braking. PWM rectifiers are also used in distributed power generation applications, such as micro turbines, fuel cells and wind mills.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Inverter (electrical) — An inverter is an electrical device that converts direct current (DC) to alternating current (AC)[1]; the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. Solid… …   Wikipedia

  • Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… …   Wikipedia

  • Digital phase converter — A digital phase converter creates a three phase power supply from a single phase supply. A digital signal processor (DSP) is used to control power electronic devices to generate a third voltage, which along with the single voltage from the supply …   Wikipedia

  • Vienna-Gleichrichter — Ein Vienna Gleichrichter, auch als Dreiphasen Dreipunkt Pulsgleichrichter bezeichnet, ist eine in der elektrischen Energietechnik verwendete Gleichrichterschaltung, um Dreiphasenwechselstrom in Gleichstrom umzuwandeln. Er zählt zu der Gruppe der… …   Deutsch Wikipedia

  • Switched-mode power supply — switched mode power supply. A bridge rectifier B Input filter capacitors C Transformer D output filter coil E output filter capacitors ] A switched mode power supply, switching mode power supply or SMPS, is an electronic power supply unit (PSU)… …   Wikipedia

  • Demodulation — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Gleichrichter — werden in der Elektrotechnik und Elektronik zur Umwandlung von Wechselspannung in Gleichspannung verwendet. Sie bilden, neben Wechselrichtern und Umrichtern, eine Untergruppe der Stromrichter. Um Wechselanteile zu bedämpfen, wird die… …   Deutsch Wikipedia

  • Opto-isolator — This article is about the electronic component. For the optical component, see optical isolator. Schematic diagram of an opto isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on… …   Wikipedia

  • Frequency changer — A frequency changer or frequency converter is an electronic device that converts alternating current (AC) of one frequency to alternating current of another frequency. The device may also change the voltage, but if it does, that is incidental to… …   Wikipedia

  • Detector (radio) — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”