Current sensing gated current source for delay reduction in a un

Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Delay controlled switch

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327538, H03K 17296, G05F 110

Patent

active

061247502

ABSTRACT:
A circuit comprising a comparator circuit and a control circuit. The comparator circuit may be configured to present an output signal in response to (i) a reference current and (ii) a control current. The control circuit may be configured to generate the control current in response to (i) a first current source configured to present a fixed portion of the control current, (ii) a second current source configured to present a variable portion of the control current and (iii) a sense transistor. The second current source generally responds to a level of said control current.

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Gary W. Alleven, U.S.S.N. 08/934,933 Methods, Circuits and Devices for reducing and/or Improving Crossover Performance and/or Monotonicity, and Applications of the Same in a Universal Serial Bus (USB) Low Speed Output Driver, filed Sep. 22, 1997.
Gary W. Alleven, U.S.S.N. 08/934,805 Methods, Circuits and Devices for Reducing and/or Improving Crossover Performance and/or Monotonicity, and Applications of the Same in a Universal Serial Bus (USB) Low Speed Output Driver, filed Sep. 22, 1997.
Gary W. Alleven, U.S.S.N. 08/935,350 Methods, Circuits and Devices for Reducing and/or Improving Crossover Performance and/or Monotonicity, and Applications of the Same in a Universal Serial Bus (USB) Low Speed Output Driver, filed Sep. 22, 1997.
Design Guide for a Low Speed Buffer for the Universal Serial Bus.
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Universal Serial Bus Specification, Chapter 7--Electrical, Jan. 15, 1996, pp. 111-143.

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