Multi-Level Controller with Lookup Table
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United States of America Patent
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Jan 23, 2025
app pub date -
Jul 18, 2023
filing date -
Jul 18, 2023
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Abstract
A controller for a multi-level power converter that utilizes a look-up-table (LUT) in combination with a fast flash analog-to-digital converter (ADC) circuit to implement a complex set of control states for the multi-level power converter. Since the set of control states can be pre-processed, a LUT is very well suited for such selecting such control states. This technique can be fast because the delay is only the LUT access time, rather than the propagation delay through a complex network of combinational logic. The fast flash ADC has been designed to achieve all the following: high conversion speed, high resolution, small layout area, low power, and the ability to meet the requirements for properly balancing fly capacitor voltages in a multi-level converter cell.
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