JPS56157109A - Characteristic stabilizing circuit - Google Patents

Characteristic stabilizing circuit

Info

Publication number
JPS56157109A
JPS56157109A JP6010280A JP6010280A JPS56157109A JP S56157109 A JPS56157109 A JP S56157109A JP 6010280 A JP6010280 A JP 6010280A JP 6010280 A JP6010280 A JP 6010280A JP S56157109 A JPS56157109 A JP S56157109A
Authority
JP
Japan
Prior art keywords
gain
change
compensation
circuit
previously
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
JP6010280A
Other languages
Japanese (ja)
Inventor
Teruhisa Kurokawa
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
Nippon Electric Co Ltd
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6010280A priority Critical patent/JPS56157109A/en
Publication of JPS56157109A publication Critical patent/JPS56157109A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control

Landscapes

  • Radio Relay Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Transmitters (AREA)

Abstract

PURPOSE:To obtain a stabilizing circuit for the machinery that requires a high stability like EIRP sent from a ground station of satellite communication, by always monitoring a change of the circumferential conditions and compensating the characteristics based on the degree of compensation stored previously. CONSTITUTION:The signal input A is supplied to an amplifier 2 via a characteristic compensator (variable attenuator for gain compensation) 1 to deliver an amplified signal output B. A logical circuit 4 reads out the information stored in the storage circuits 61-6n based on the information of the detectors 51-5n and sends the output signal to a driving circuit 3. Based on this output signal, the circuit 3 controls the compensator 1. The detectors 51-5n thus constituted detect the temperature that causes a change of the circumferential conditions. The circuits 61- 6n examine previously a change of characteristic to a change of conditions and store the degree of compensation. The gain of an amplifier having a gain as shown by a solid line 21 is controlled previously so that a change of gain turns into a dotted line 22 when varying from the reference value to 0.2dB. Thus the gain is suppressed down to <= reference value + or -0.2dB.
JP6010280A 1980-05-07 1980-05-07 Characteristic stabilizing circuit Pending JPS56157109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6010280A JPS56157109A (en) 1980-05-07 1980-05-07 Characteristic stabilizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6010280A JPS56157109A (en) 1980-05-07 1980-05-07 Characteristic stabilizing circuit

Publications (1)

Publication Number Publication Date
JPS56157109A true JPS56157109A (en) 1981-12-04

Family

ID=13132392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6010280A Pending JPS56157109A (en) 1980-05-07 1980-05-07 Characteristic stabilizing circuit

Country Status (1)

Country Link
JP (1) JPS56157109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07120903B2 (en) * 1987-03-09 1995-12-20 モトローラ・インコーポレーテッド Method and apparatus for automatically ensuring safe operating temperature for electronic devices

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110555A (en) * 1976-03-15 1977-09-16 Nec Corp Automatic volume control system for car mounting audio device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110555A (en) * 1976-03-15 1977-09-16 Nec Corp Automatic volume control system for car mounting audio device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07120903B2 (en) * 1987-03-09 1995-12-20 モトローラ・インコーポレーテッド Method and apparatus for automatically ensuring safe operating temperature for electronic devices

Similar Documents

Publication Publication Date Title
CA2094133C (en) Linear gain control amplifier
US4602218A (en) Automatic output control circuitry for RF power amplifiers with wide dynamic range
CA2093638A1 (en) High dynamic range closed loop automatic gain control circuit
CA2051982A1 (en) Automatic gain control apparatus and method
KR930702823A (en) Power Control Circuits for TDMA Radio Frequency Transmitters
US4808810A (en) Preamplifier for an optical receiver
JPH0320167B2 (en)
JP2000049630A5 (en)
UA39094C2 (en) Transmitter (variants), amplifier control method, circuit of amplifying and saturation control of the amplifier
EP0526241B1 (en) Linear compensating circuit
NO963709L (en) Amplifier circuit
ES2080666B1 (en) RADIO FREQUENCY OUTPUT LEVEL COMPENSATION CIRCUIT FOR A RADIO TRANSMITTER.
JPS5711548A (en) Optical receiving circuit
CA2087744A1 (en) Control device for power amplifier
JPS56157109A (en) Characteristic stabilizing circuit
GB1437964A (en) Asynchronous pulse receiver
AU6861296A (en) Highly responsive automatic output power control based on a differential amplifier
JPS644122A (en) Variable gain antenna
JPS5730429A (en) Automatic restoration system for automatic level adjuster
JPS6341454B2 (en)
US5023564A (en) Amplfier circuit
CA2058482A1 (en) Baseband signal processing circuit for a radio communication apparatus
KR200153869Y1 (en) Gain control circuit for ultra high frequency signal
JPS6442931A (en) Transmission power control system for satellite communication earth station
JPS5711550A (en) Negative feedback amplifier for optical reception