AMPLIFIER DEVICE
PROBLEM TO BE SOLVED: To provide an amplifier device capable of obtaining a good output signal even when a transmission electric field is in any situation.SOLUTION: An amplifier device amplifying a reception signal from an antenna is configured by a transistor amplifier circuit 10, a level determina...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an amplifier device capable of obtaining a good output signal even when a transmission electric field is in any situation.SOLUTION: An amplifier device amplifying a reception signal from an antenna is configured by a transistor amplifier circuit 10, a level determination part 20, and a current controller 30. The amplifier circuit 10 receives and amplifies the reception signal from the antenna. The level determination part 20 detects an output signal level of the amplifier circuit 10. The current controller 30 controls a current flowing in a transistor of the amplifier circuit 10 depending on determination results by the level determination part 20. |
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