WEBVTT

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Commissioning of an ordinary inverter at a few €

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It provides 230 V ~ but well square from 14 Volts continuous

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This inverter waves and raises: inverter elevator

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The period is well 20 ms, the frequency of 50 hertz

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The signal is square but the dead time (without it cct) between the alternations is clearly visible

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A vacuum consumes 0.15 A * 14 Volts or about 2 Watts

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It provides 25 Watts (25 W lamp) and absorbs 2 A * 14 V = 28 Watts

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The efficiency of 25/28 Watts is close to 90%!

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Attention, this signal, well accepted by the bulb, may not be suitable for all!

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Low-end: square, pseudo-sinus: MLI, sine: with passive filter (lower efficiency)