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Switching system

  • US 6,900,711 B2
  • Filed: 09/30/2002
  • Issued: 05/31/2005
  • Est. Priority Date: 09/30/2002
  • Status: Expired due to Fees
First Claim
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1. A switching system, comprising:

  • first and second field effect transistors having substantially matched electrical characteristics, wherein each field effect transistor has a gate, a drain and a source; and

    third and fourth field effect transistors coupled to the gates of the first and second field effect transistors and having substantially matched electrical characteristics, wherein the third and fourth field effect transistors are configured to apply a bias voltage to the gates of the first and second field effect transistors sufficient to switch the transistors from a non-conductive state to a conductive state, and configured to control a signal current conducted through the first and second field effect transistors by enabling the gate of the first field effect transistor to float to a voltage that is between a drain voltage and a source voltage of the first field effect transistor and by enabling the gate of the second field effect transistor to float to a voltage that is between a drain voltage and a source voltage of the second field effect transistor.

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