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Fault control for switched capacitor power converter

  • US 10,666,134 B2
  • Filed: 09/29/2017
  • Issued: 05/26/2020
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. An apparatus comprising a power converter and fault-control circuitry connected to said power converter, said power converter comprising a port for coupling to an external circuit disposed to soft-charge said power converter, and a switched capacitor circuit comprising a set of switches, and a set of capacitors, said set of switches being configured to transition between switch configurations, thereby causing said set of capacitors to transition between plural capacitor networks, and wherein, during operation of said power converter, said fault-control circuitry is configured to carry out an action selected from the group consisting of detecting a fault in said operation and responding to said fault, wherein said fault-control circuitry comprises a disconnect switch having a maximum voltage rating greater than a voltage rating of at least one switch element in said set of switches, said disconnect switch being configured to electrically disconnect or limit current flow through a switch element in said set of switches.

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