IGBT Based Power Inverters
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DAVID SMITH
Feb 11, 2015, 11:49:14 AM2/11/15
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Please consider this free-reprint article written by:
DAVID SMITH
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Article Title: IGBT Based Power Inverters
Author: DAVID SMITH
Word Count: 658
Article URL: http://www.isnare.com/?aid=1926229&ca=Computers+and+Technology
Format: 64cpl
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IGBTs or integrated gate bipolar transistors are the component of choice where high switching speeds and high voltage are required in a device such as a power inverter. Inverters convert direct current to alternating current at a specific voltage and frequency. Power converters can be of very small size – mobile phones have miniature power converters in their circuits – but may be of much larger size and deal with hundreds of mega watts of power. In a power converter, the voltage and current typically control the overall power rating, whereas in an electronic device, these two parameters carry the signal or information in the device.
Power inverters work with the help of a component such as an IGBT or a MOSFET or BJT. These are all switching devices that turn the power on or off at a specific speed and voltage range. In some applications, commutated thyristors are used rather than semiconductors.
The best type of power inverter should have a sinusoidal waveform, but in practice most are not sinusoidal and they tend to contain a specific set of harmonics.
Low and medium power inverters can use a non sinusoidal waveform, such as a square or semi- square waveform, and perform quite satisfactorily, but when the voltage increases, sinusoidal waveform inverters are to be preferred. Power inverters with adjustable alternating current frequency capacity can be designed by using control circuitry which varies the turn on and turn off ties of the IGBTs or other switching components in the circuitry. The switching method of these high speed power semiconductor devices can determine the harmonics of the resulting output voltage.
The input into the power inverter is typically a rectifier producing DC if the application is an industrial one, but the initial voltage may be coming from a variety of different sources, including fuel cells, solar cells or even a battery. The rectifier involves a DC link. The network frequency is at first rectified and then finally inverted back to AC at an adjustable frequency. This sort of rectification can be achieved by using thyristor converter circuits or standard diodes. The inversion itself is carried out by standard circuitry.
An example of a typical power inverter in which the switching components are IGBTs is a single phase Unipolar inverter. This type of inverter typically consists of a bridge form with four IGBTs which are bidirectional. In this example, the circuit’s input voltage is in the region of 220V which is being fed in by the rectifier unit. The AC output is achieved by triggering the four IGBTs in a prescribed sequence. Two of the IGBTs are at first switched on by triggering the IGBT gates. Current flows from the positive side of the IGBTs to the negative. The second half of the cycle reverses the direction of the current.
Http://www.USComponent.com had been selling IGBT power transistor modules since 2001. Thyssen Krupp, OTIS, IXYS, SONY DADC, General Motors, Hongkong Electric Holdings Limited, Singapore Mass Rapid Transit Trains LTD, Verkehrsbetriebe Zurich, Czech Airlines, Molex, Cisco, Omron, Good Year Tires, Thai Airasia, Boeing, Xilinx, LEAR SIEGLER, and General Electric.
Http://www.USComponent.com has a Quality Control Team like no other. This means that we know how to work hard in order to ensure to make sure that the quality of all of the parts we’re selling is high. Because we only sell new and original electronic parts, we provide our customers with a 30-day warranty. And because we have connections with IGBT power transistor modules manufacturers, OEMs and distributors, we’re able to pass any savings on to our customers, giving them a lower price while still providing them with the quality products they deserve. Our inventory is carefully managed and held to the highest standards, and stored in a controlled environment warehousing facility.
See more at: http://www.uscomponent.com/uscomponent/blog/
About The Author: David Smith, Senior Vice President of http://USComponent.com , an IGBT power transistor module distributor since 2001.
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=1926229
*********************** ARTICLE END ***********************
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Message delivered directly to members of the group:
publish-the...@googlegroups.com
*****************************************************************
Please consider this free-reprint article written by:
DAVID SMITH
*****************************
IMPORTANT - Publication/Reprint Terms
- You have permission to publish this article electronically in free-only publications such as a website or an ezine as long as the bylines are included.
- You are not allowed to use this article for commercial purposes. The article should only be reprinted in a publicly accessible website and not in a members-only commercial site.
- You are not allowed to post/reprint this article in any sites/publications that contains or supports hate, violence, porn and warez or any indecent and illegal sites/publications.
- You are not allowed to use this article in UCE (Unsolicited Commercial Email) or SPAM. This article MUST be distributed in an opt-in email list only.
- If you distribute this article in an ezine or newsletter, we ask that you send a copy of the newsletter or ezine that contains the article to http://www.isnare.com/eta.php?aid=1926229
- If you post this article in a website/forum/blog, ALL links MUST be set to hyperlinks and we ask that you send a copy of the URL where the article is posted to http://www.isnare.com/eta.php?aid=1926229
- We request that you ask permission from the author if you want to publish this article in print.
The role of iSnare.com is only to distribute this article as part of its Article Distribution feature ( http://www.isnare.com/distribution.php ). iSnare.com does NOT own this article, please respect the author's copyright and this publication/reprint terms. If you do not agree to any of these terms, please do not reprint or publish this article.
*****************************
Article Title: IGBT Based Power Inverters
Author: DAVID SMITH
Word Count: 658
Article URL: http://www.isnare.com/?aid=1926229&ca=Computers+and+Technology
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=1926229
Easy Publish Tool: http://www.isnare.com/html.php?aid=1926229
*********************** ARTICLE START ***********************
IGBTs or integrated gate bipolar transistors are the component of choice where high switching speeds and high voltage are required in a device such as a power inverter. Inverters convert direct current to alternating current at a specific voltage and frequency. Power converters can be of very small size – mobile phones have miniature power converters in their circuits – but may be of much larger size and deal with hundreds of mega watts of power. In a power converter, the voltage and current typically control the overall power rating, whereas in an electronic device, these two parameters carry the signal or information in the device.
Power inverters work with the help of a component such as an IGBT or a MOSFET or BJT. These are all switching devices that turn the power on or off at a specific speed and voltage range. In some applications, commutated thyristors are used rather than semiconductors.
The best type of power inverter should have a sinusoidal waveform, but in practice most are not sinusoidal and they tend to contain a specific set of harmonics.
Low and medium power inverters can use a non sinusoidal waveform, such as a square or semi- square waveform, and perform quite satisfactorily, but when the voltage increases, sinusoidal waveform inverters are to be preferred. Power inverters with adjustable alternating current frequency capacity can be designed by using control circuitry which varies the turn on and turn off ties of the IGBTs or other switching components in the circuitry. The switching method of these high speed power semiconductor devices can determine the harmonics of the resulting output voltage.
The input into the power inverter is typically a rectifier producing DC if the application is an industrial one, but the initial voltage may be coming from a variety of different sources, including fuel cells, solar cells or even a battery. The rectifier involves a DC link. The network frequency is at first rectified and then finally inverted back to AC at an adjustable frequency. This sort of rectification can be achieved by using thyristor converter circuits or standard diodes. The inversion itself is carried out by standard circuitry.
An example of a typical power inverter in which the switching components are IGBTs is a single phase Unipolar inverter. This type of inverter typically consists of a bridge form with four IGBTs which are bidirectional. In this example, the circuit’s input voltage is in the region of 220V which is being fed in by the rectifier unit. The AC output is achieved by triggering the four IGBTs in a prescribed sequence. Two of the IGBTs are at first switched on by triggering the IGBT gates. Current flows from the positive side of the IGBTs to the negative. The second half of the cycle reverses the direction of the current.
Http://www.USComponent.com had been selling IGBT power transistor modules since 2001. Thyssen Krupp, OTIS, IXYS, SONY DADC, General Motors, Hongkong Electric Holdings Limited, Singapore Mass Rapid Transit Trains LTD, Verkehrsbetriebe Zurich, Czech Airlines, Molex, Cisco, Omron, Good Year Tires, Thai Airasia, Boeing, Xilinx, LEAR SIEGLER, and General Electric.
Http://www.USComponent.com has a Quality Control Team like no other. This means that we know how to work hard in order to ensure to make sure that the quality of all of the parts we’re selling is high. Because we only sell new and original electronic parts, we provide our customers with a 30-day warranty. And because we have connections with IGBT power transistor modules manufacturers, OEMs and distributors, we’re able to pass any savings on to our customers, giving them a lower price while still providing them with the quality products they deserve. Our inventory is carefully managed and held to the highest standards, and stored in a controlled environment warehousing facility.
See more at: http://www.uscomponent.com/uscomponent/blog/
About The Author: David Smith, Senior Vice President of http://USComponent.com , an IGBT power transistor module distributor since 2001.
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=1926229
*********************** ARTICLE END ***********************
- To distribute your articles go to http://www.isnare.com/distribution.php
- For more free-reprint articles go to http://www.isnare.com
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