NON-ISOLATED AC-DC CONVERSION POWER SUPPLY
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United States of America Patent
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Issued Date -
Apr 7, 2016
app pub date -
Oct 7, 2014
filing date -
Oct 7, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A non-isolated capacitive AC-DC conversion power supply includes a current limiting input module that receives AC input power and has an output capacitor that supplies DC power. Charge storage stages have charge storage capacitors, a rectifier supplying rectified current from the input module to charge the charge storage capacitors and the output capacitor during a first part-cycle of the AC input power. The charge storage stages also include current amplifiers and unidirectional elements that conduct discharge current from the charge storage capacitors to charge the output capacitor during a second part-cycle of the AC input power. Ground of the DC output can be connected to the live AC input.
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