Method and Apparatus for Transistor Switch Isolation
First Claim
1. A switching arrangement adapted to receive an input signal and either transmit the input signal or ground the input signal, comprising:
- a plurality of filters, wherein each filter in the plurality of filters is adapted to receive a first control signal;
a first set of switching devices serially connected therebetween, wherein;
a first switching device in the first set of switching devices is configured to receive the input signal,a last switching device in the first set of switching devices is configured to transmit the input signal, andeach switching device is connected with a filter in the plurality of filters and configured to receive an output of the filter; and
a second set of switching devices, wherein each switching device in the second set of switching devices;
is connected on one end with a switching device in the first set of switching devices,is configured to receive a second control signal, andis configured to ground the input signal,wherein whether the switching arrangement transmits the input signal or grounds the input signal is based on values of the first and second control signals.
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Abstract
A transistor switch that provides isolation is described. The transistor switch is adapted to receive an input signal at an input terminal and either transmit the input signal to an output terminal when the transistor switch is in a first state or ground the input signal when the transistor switch is in a second state. The transistor switch comprises series switches, which couple the input terminal to the output terminal when the transistor switch is in the first state; shunt switches, which couple the input terminal to ground when the transistor switch is in the second state; and filters to provide isolation between the input terminal and the output terminal.
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Citations
20 Claims
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1. A switching arrangement adapted to receive an input signal and either transmit the input signal or ground the input signal, comprising:
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a plurality of filters, wherein each filter in the plurality of filters is adapted to receive a first control signal; a first set of switching devices serially connected therebetween, wherein; a first switching device in the first set of switching devices is configured to receive the input signal, a last switching device in the first set of switching devices is configured to transmit the input signal, and each switching device is connected with a filter in the plurality of filters and configured to receive an output of the filter; and a second set of switching devices, wherein each switching device in the second set of switching devices; is connected on one end with a switching device in the first set of switching devices, is configured to receive a second control signal, and is configured to ground the input signal, wherein whether the switching arrangement transmits the input signal or grounds the input signal is based on values of the first and second control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
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10. A switch element adapted to receive an input signal on one end and a control signal on another end, comprising:
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a filter; a plurality of gate resistors connected with the filter; and a plurality of transistors serially connected therebetween, wherein a gate of each transistor in the plurality of transistors is connected with a gate resistor in the plurality of gate resistors. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for transmitting an input signal to one or more output terminals or grounding the input signal, comprising:
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providing a plurality of filters; providing a first set of switching devices serially connected therebetween, wherein each switching device in the first set of switching devices is either in a first state or a second state and configured to receive an output of a filter in the plurality of filters; providing a second set of switching devices, wherein each switching device in the second set of switching devices is either in a first state or a second state; applying the input signal to a first switching device in the first set of switching devices; applying a first control signal to each filter in the plurality of filters, wherein state of each switching device in the first set of switching devices is based on the first control signal applied to the plurality of filters; applying a second control signal to each switching device in the second set of switching devices, wherein state of each switching device in the second set of switching devices is based on the second control signal; transmitting the input signal to the one or more output terminals when each switching device in the first set of switching devices is in the first state; and grounding the input signal to a ground terminal when each switching device in the second set of switching devices is in the first state. - View Dependent Claims (18, 19)
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Specification