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POWER AMPLIFIER MODULE

  • US 20180241349A1
  • Filed: 02/14/2018
  • Published: 08/23/2018
  • Est. Priority Date: 02/17/2017
  • Status: Active Grant
First Claim
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1. A power amplifier module comprising:

  • a power amplifier circuit comprising;

    a bipolar transistor configured to amplify power of a radio frequency signal and to output an amplified signal, anda first diode element that is thermally coupled with the bipolar transistor; and

    a control integrated circuit comprising;

    a field-effect transistor, anda second diode element,wherein;

    a drain terminal of the field-effect transistor is connected to a battery voltage,a bias signal is input to a gate terminal of the field-effect transistor and is supplied from a source terminal of the field-effect transistor to the bipolar transistor via a first wire,a cathode of the first diode element is grounded,an anode of the first diode element is connected to a cathode of the second diode element via a second wire, andan anode of the second diode element is connected to the gate terminal of the field-effect transistor.

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