Synchronous buck inverter
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United States of America Patent
Stats
-
Nov 17, 2020
Grant Date -
Apr 5, 2018
app pub date -
Oct 4, 2017
filing date -
Sep 8, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A power inverter, such as a synchronous buck power inverter, that is configured with a high frequency switching control having a (PWM) controller and sensing circuit. Controller provides a low frequency oscillating wave to effect switching control on a synchronous-buck circuit portion that includes a plurality of switches to invert every half cycle of the frequency provided by controller. The inverting process thus creates a positive and negative transition of the oscillating wave signal. A low frequency switching stage includes a further plurality of switches configured to operate as zero voltage switching (ZVS) and zero current switching (ZCS) drives Charge on an output capacitor is discharged to zero on every zero crossing of low frequency switching stage and advantageously discharges energy every half cycle. During this discharge of energy, the zero crossing distortion in the low frequency sine wave is greatly reduced.
First Claim
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International Classification(s)
- 2017 Application Filing Year
- H02M Class
- 3298 Applications Filed
- 2665 Patents Issued To-Date
- 80.81 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H02M Class
- 34.93 % this patent is cited more than
- 5 Age
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