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JPS647719A - Transmitting power control circuit - Google Patents

Transmitting power control circuit

Info

Publication number
JPS647719A
JPS647719A JP16376887A JP16376887A JPS647719A JP S647719 A JPS647719 A JP S647719A JP 16376887 A JP16376887 A JP 16376887A JP 16376887 A JP16376887 A JP 16376887A JP S647719 A JPS647719 A JP S647719A
Authority
JP
Japan
Prior art keywords
output
voltage
high frequency
frequency signal
rises
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16376887A
Other languages
Japanese (ja)
Inventor
Kenji Seki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP16376887A priority Critical patent/JPS647719A/en
Publication of JPS647719A publication Critical patent/JPS647719A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent overvoltage to a power amplifying part at the time of a high frequency signal input, to prevent a performance reduction and to also prevent an instantaneous excessive power supply by generating a control signal in response to the detecting output of an input high frequency signal. CONSTITUTION:When a high frequency signal is inputted to a terminal 1, after the output voltage of a detecting part 6 passes through a direct current amplifier 14 and an inverter 15, the voltage goes to a low level and a transistor 18 is turned off. Consequently, the voltage supplied from a supply voltage input terminal 23 and divided by a variable resistance 20 and a resistance 21 is integrated by integrating circuits (19 and 22). For this reason, a reference voltage VR given to an error amplifier 9 rises in accordance with the integration time constant. The reference voltage is compared with an output voltage from a detecting part 8, and the output of the amplifier 9 is also given to a supply voltage control part 7 while it slowly rises. As a result, the output power of a power amplifying part 3 also rises slowly to a constant output.
JP16376887A 1987-06-29 1987-06-29 Transmitting power control circuit Pending JPS647719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16376887A JPS647719A (en) 1987-06-29 1987-06-29 Transmitting power control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16376887A JPS647719A (en) 1987-06-29 1987-06-29 Transmitting power control circuit

Publications (1)

Publication Number Publication Date
JPS647719A true JPS647719A (en) 1989-01-11

Family

ID=15780347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16376887A Pending JPS647719A (en) 1987-06-29 1987-06-29 Transmitting power control circuit

Country Status (1)

Country Link
JP (1) JPS647719A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948755A (en) * 1987-10-08 1990-08-14 Standard Microsystems Corporation Method of manufacturing self-aligned conformal metallization of semiconductor wafer by selective metal deposition
WO1994017598A1 (en) * 1993-01-25 1994-08-04 Kabushiki Kaisha Toshiba Communication apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948755A (en) * 1987-10-08 1990-08-14 Standard Microsystems Corporation Method of manufacturing self-aligned conformal metallization of semiconductor wafer by selective metal deposition
WO1994017598A1 (en) * 1993-01-25 1994-08-04 Kabushiki Kaisha Toshiba Communication apparatus

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