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Author Topic: house lighting back up plan  (Read 6048 times)
rogeriko
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« Reply #15 on: December 23, 2014, 10:06:45 AM »

The circuit looks the same because the pure sine wave models actually switch the power on and off at varying levels very fast, about 20khz, so that the output resembles a pure sine wave. This then goes through the transformer that completely smooths out all the switching pulses so that you get a sine wave.  All HF inverters work like this too.


* PWM-output.jpg (40.76 KB, 600x502 - viewed 379 times.)
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rimce44
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« Reply #16 on: January 25, 2015, 05:54:51 PM »

LED is the way forward
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