Method and apparatus for providing transmitter protection
First Claim
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1. An RF transmitter protection circuit for providing protection to a power amplifier having an input and an output, the circuit comprising:
- means for sensing the presence of an input signal applied to the input of the power amplifier;
means for monitoring an output signal generated by the power amplifier at the output of the power amplifier and for generating a signal proportional to said output signal; and
means for applying said signal generated by said monitoring means to the input of the power amplifier in response to a loss of input signal detected by said sensing means.
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Abstract
An RF transmitter protection circuit for providing protection to a power amplifier includes circuitry for sensing the presence of an input excitation signal applied to the input of the power amplifier. Circuitry is provided for monitoring an output signal generated by the power amplifier at the output of the power amplifier and for generating a signal proportional to the output signal. Circuitry is further provided for applying the signal generated by the monitoring circuit to the input of the power amplifier in response to a loss of input signal detected by the sensor.
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4 Claims
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1. An RF transmitter protection circuit for providing protection to a power amplifier having an input and an output, the circuit comprising:
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means for sensing the presence of an input signal applied to the input of the power amplifier; means for monitoring an output signal generated by the power amplifier at the output of the power amplifier and for generating a signal proportional to said output signal; and means for applying said signal generated by said monitoring means to the input of the power amplifier in response to a loss of input signal detected by said sensing means. - View Dependent Claims (2)
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3. A method for providing protection to a power amplifier having an input and an output of an RF transmitter comprising the steps of:
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sensing the presence of an input signal applied to the input of the power amplifier; monitoring an output signal generated by the power amplifier at the output of the power amplifier and generating a signal proportional to the output signal; and applying said signal proportional to the power amplifier output signal to the input of the power amplifier in response to a loss of input signal to the power amplifier. - View Dependent Claims (4)
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Specification