Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Patent
1998-04-03
2000-03-14
Eisenzopf, Reinhard J.
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
455126, 455117, 455423, 330129, H01Q 1112, H03G 320
Patent
active
060384328
ABSTRACT:
An automatic transmission power control circuit which can detect an abnormality in a transmission power without a comparing circuit which compares a detected voltage with reference voltages. A detector detects a voltage corresponding to the transmission power and outputs a detected voltage. A comparator compares the detected voltage with a reference voltage so that the transmission power is controlled based on an output of the comparator. A transmission power abnormality detecting circuit includes a counter which cumulates the output of the comparator. The transmission power abnormality detecting circuit outputs a transmission power abnormality detection signal when an output of the counter is a value which is out of a normal range when the automatic power transmission control circuit is normally functioning.
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patent: 4634997 (1987-01-01), Tompsett et al.
patent: 4691172 (1987-09-01), Fukahori et al.
patent: 4803440 (1989-02-01), Hotta et al.
patent: 5507016 (1996-04-01), Okuhara
patent: 5566363 (1996-10-01), Senda
patent: 5752171 (1998-05-01), Akiya
Appiah Charles N.
Eisenzopf Reinhard J.
Fujitsu Limited
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