Inverter SEBD - Revision history

Kardan: +Category:Electronics

2011-12-21T05:04:49Z

← Older revision		Revision as of 05:04, 21 December 2011
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	[[Image:inverterconcept3.png\|600px]]		[[Image:inverterconcept3.png\|600px]]
			[[Category:Electronics]]

Marcin at 14:20, 8 August 2011

2011-08-08T14:20:12Z

← Older revision		Revision as of 14:20, 8 August 2011
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	Concept diagram:		Concept diagram:

	[[Image:~~inverterconcept2~~.png\|600px]]		[[Image:inverterconcept3.png\|600px]]

Marcin at 05:03, 8 August 2011

2011-08-08T05:03:50Z

← Older revision		Revision as of 05:03, 8 August 2011
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	Inverter designs typically employ the following elements:		Inverter designs typically employ the following elements:

	''''Oscillator'''' - Provides a reference waveform for comparing the output waveform and creating feedback.		'''Oscillator''' - Provides a reference waveform for comparing the output waveform and creating feedback.

	Driver circuit - Outputs signals to "drive" the output amplifier to switch the DC power on and off. The driver circuit must employ feedback from the final output for comparing to the waveform from the oscillator. Feedback can also be used to adjust for excessive power demand. The driver circuit should be split into two parts for driving both positive and negative components of the waveform.		Driver circuit - Outputs signals to "drive" the output amplifier to switch the DC power on and off. The driver circuit must employ feedback from the final output for comparing to the waveform from the oscillator. Feedback can also be used to adjust for excessive power demand. The driver circuit should be split into two parts for driving both positive and negative components of the waveform.

	''''Output Amplifier'''' - These high-power electronic devices switch the DC power into rectangular waveforms which then go to the transformer.		'''Output Amplifier''' - These high-power electronic devices switch the DC power into rectangular waveforms which then go to the transformer.

	''''Transformer'''' - Transformers typically employ two sets of windings to transform the input:output voltages according to the number of windings in each coil. In addition, transformers are inductors, which provide some "smoothing" of waveform irregularities.		'''Transformer''' - Transformers typically employ two sets of windings to transform the input:output voltages according to the number of windings in each coil. In addition, transformers are inductors, which provide some "smoothing" of waveform irregularities.

	Concept diagram:		Concept diagram:

	[[Image:inverterconcept2.png\|600px]]		[[Image:inverterconcept2.png\|600px]]

Marcin at 05:03, 8 August 2011

2011-08-08T05:03:13Z

← Older revision		Revision as of 05:03, 8 August 2011
Line 10:		Line 10:
	The power produced by inverters is usually one of two types:		The power produced by inverters is usually one of two types:

	''''Modified Sine Wave'''' - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.		'''Modified Sine Wave''' - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.

	''''Pure Sine Wave'''' - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:		'''Pure Sine Wave''' - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:

	[[Image:waveform.png\|600px]]		[[Image:waveform.png\|600px]]

Marcin at 05:02, 8 August 2011

2011-08-08T05:02:27Z

← Older revision		Revision as of 05:02, 8 August 2011
Line 10:		Line 10:
	The power produced by inverters is usually one of two types:		The power produced by inverters is usually one of two types:

	Modified Sine Wave - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.		''''Modified Sine Wave'''' - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.

	Pure Sine Wave - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:		''''Pure Sine Wave'''' - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:

	[[Image:waveform.png\|600px]]		[[Image:waveform.png\|600px]]
Line 24:		Line 24:
	Inverter designs typically employ the following elements:		Inverter designs typically employ the following elements:

	Oscillator - Provides a reference waveform for comparing the output waveform and creating feedback.		''''Oscillator'''' - Provides a reference waveform for comparing the output waveform and creating feedback.

	Driver circuit - Outputs signals to "drive" the output amplifier to switch the DC power on and off. The driver circuit must employ feedback from the final output for comparing to the waveform from the oscillator. Feedback can also be used to adjust for excessive power demand. The driver circuit should be split into two parts for driving both positive and negative components of the waveform.		Driver circuit - Outputs signals to "drive" the output amplifier to switch the DC power on and off. The driver circuit must employ feedback from the final output for comparing to the waveform from the oscillator. Feedback can also be used to adjust for excessive power demand. The driver circuit should be split into two parts for driving both positive and negative components of the waveform.

	Output Amplifier - These high-power electronic devices switch the DC power into rectangular waveforms which then go to the transformer.		''''Output Amplifier'''' - These high-power electronic devices switch the DC power into rectangular waveforms which then go to the transformer.

	Transformer - Transformers typically employ two sets of windings to transform the input:output voltages according to the number of windings in each coil. In addition, transformers are inductors, which provide some "smoothing" of waveform irregularities.		''''Transformer'''' - Transformers typically employ two sets of windings to transform the input:output voltages according to the number of windings in each coil. In addition, transformers are inductors, which provide some "smoothing" of waveform irregularities.

	Concept diagram:		Concept diagram:

	[[Image:inverterconcept2.png\|600px]]		[[Image:inverterconcept2.png\|600px]]

Marcin at 04:59, 8 August 2011

2011-08-08T04:59:45Z

← Older revision		Revision as of 04:59, 8 August 2011
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	[[Image:waveform.png\|600px]]		[[Image:waveform.png\|600px]]

	~~Care should be taken to throttle~~ the ~~power produced, should it exceed~~ design limits.		Inverter designs commonly have "throttling" logic that shuts down the inverter in case demand exceeds design limits. Another common feature is to shut down the output in case of excessive temperature.

Marcin at 04:57, 8 August 2011

2011-08-08T04:57:17Z

← Older revision		Revision as of 04:57, 8 August 2011
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	Pure Sine Wave - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:		Pure Sine Wave - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:

	[[Image:~~waveforms~~.png\|600px]]		[[Image:waveform.png\|600px]]

	Care should be taken to throttle the power produced, should it exceed design limits.		Care should be taken to throttle the power produced, should it exceed design limits.

Marcin at 14:43, 7 August 2011

2011-08-07T14:43:19Z

← Older revision		Revision as of 14:43, 7 August 2011
Line 12:		Line 12:
	Modified Sine Wave - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.		Modified Sine Wave - Similar to sine wave, but waveform is rectangular rather than rounded. While the simpler design of these inverters are less expensive many devices will not work properly with power using a modified sine wave, such as televisions and computers.

	Pure Sine Wave - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device.		Pure Sine Wave - Accurately simulates the sine wave power. They are usually employ more complicated circuitry and are more expensive. They can be used with any common AC device. The following diagram shows both sine and modified sine waves:

			[[Image:waveforms.png\|600px]]

	Care should be taken to throttle the power produced, should it exceed design limits.		Care should be taken to throttle the power produced, should it exceed design limits.

Marcin at 14:23, 7 August 2011

2011-08-07T14:23:16Z

← Older revision		Revision as of 14:23, 7 August 2011
Line 32:		Line 32:
	Concept diagram:		Concept diagram:

	[[Image:~~inverterconcept1~~.png\|600px]]		[[Image:inverterconcept2.png\|600px]]

Marcin at 14:20, 7 August 2011

2011-08-07T14:20:17Z

← Older revision		Revision as of 14:20, 7 August 2011
Line 32:		Line 32:
	Concept diagram:		Concept diagram:

	[[Image:~~inverterconcept~~.png\|600px]]		[[Image:inverterconcept1.png\|600px]]