MY118209A - Automatic voltage level control circuit - Google Patents

Automatic voltage level control circuit

Info

Publication number
MY118209A
MY118209A MYPI97004506A MYPI9704506A MY118209A MY 118209 A MY118209 A MY 118209A MY PI97004506 A MYPI97004506 A MY PI97004506A MY PI9704506 A MYPI9704506 A MY PI9704506A MY 118209 A MY118209 A MY 118209A
Authority
MY
Malaysia
Prior art keywords
voltage level
input
level control
automatic
automatic voltage
Prior art date
Application number
MYPI97004506A
Inventor
Fuad Haji Mokhtar
Nazira Bt Khamar
Macwien Krishnamurthi Annamalai
Original Assignee
Motorola Solutions Inc
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 Motorola Solutions Inc filed Critical Motorola Solutions Inc
Priority to MYPI97004506A priority Critical patent/MY118209A/en
Priority to GB9819947A priority patent/GB2329732B/en
Priority to BR9803589-4A priority patent/BR9803589A/en
Priority to DE19843767A priority patent/DE19843767A1/en
Priority to KR1019980039905A priority patent/KR100317212B1/en
Publication of MY118209A publication Critical patent/MY118209A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier

Landscapes

  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

AN AUTOMATIC VOLTAGE LEVEL CONTROL CIRCUIT (1) COMPRISING AN AUTOMATIC VOLTAGE LEVEL CONTROL INPUT (2) AND A COMPARATOR (3) HAVING AN OUTPUT (4), A REFERENCE INPUT (5) AND A FEEDBACK INPUT (6). THERE IS ALSO AN AMPLIFIER (7) HAVING A CONTROL INPUT COUPLED TO THE OUTPUT (4), A FEEDBACK OUTPUT (9) FOR PROVIDING A SIGNAL ASSOCIATED WITH A POWER LEVEL BEING SUPPLIED BY THE AMPLIFIER (7), THE FEEDBACK OUTPUT (9) BEING COUPLED TO THE FEEDBACK INPUT (6). THERE ARE AT LEAST TWO SELECTABLE TIME CONSTANT NETWORKS COUPLED TO BOTH THE REFERENCE INPUT (5) AND THE AUTOMATIC VOLTAGE LEVEL CONTROL INPUT (2) TO THEREBY ALLOW FOR AT LEAST TWO TIME CONSTANTS TO BE ELECTRICALLY ASSOCIATED WITH THE REFERENCE INPUT (5). THERE IS ALSO AN AUTOMATIC SWITCH (10) ELECTRICALLY ASSOCIATED WITH THE TIME CONSTANT NETWORKS TO THEREBY ALLOW FOR AUTOMATIC SWITCHING FROM ONE TIME CONSTANT TO ANOTHER TIME CONSTANT WHEN THE AUTOMATIC SWITCH (10) DETECTS A VOLTAGE LEVEL THAT IS ABOVE A THRESHOLD LEVEL.
MYPI97004506A 1997-09-26 1997-09-26 Automatic voltage level control circuit MY118209A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
MYPI97004506A MY118209A (en) 1997-09-26 1997-09-26 Automatic voltage level control circuit
GB9819947A GB2329732B (en) 1997-09-26 1998-09-15 Automatic voltage level control circuit
BR9803589-4A BR9803589A (en) 1997-09-26 1998-09-22 Automatic voltage level control circuit.
DE19843767A DE19843767A1 (en) 1997-09-26 1998-09-24 Automatic voltage level control circuit
KR1019980039905A KR100317212B1 (en) 1997-09-26 1998-09-25 Automatic voltage level control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI97004506A MY118209A (en) 1997-09-26 1997-09-26 Automatic voltage level control circuit

Publications (1)

Publication Number Publication Date
MY118209A true MY118209A (en) 2004-09-30

Family

ID=19749781

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI97004506A MY118209A (en) 1997-09-26 1997-09-26 Automatic voltage level control circuit

Country Status (5)

Country Link
KR (1) KR100317212B1 (en)
BR (1) BR9803589A (en)
DE (1) DE19843767A1 (en)
GB (1) GB2329732B (en)
MY (1) MY118209A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369715A (en) * 1973-02-19 1974-10-09 Ferranti Ltd Timing circuits
JPS5515857U (en) * 1978-07-17 1980-01-31
US4571548A (en) * 1983-02-14 1986-02-18 Honeywell Inc. Floating limiter circuit
GB2273009A (en) * 1992-11-28 1994-06-01 Motorola Gmbh RF Power amplifier ramp control of power level rise and fall
GB2279779B (en) * 1993-06-02 1997-03-05 Vtech Communications Ltd Amplifier power control system

Also Published As

Publication number Publication date
GB2329732B (en) 2000-01-12
DE19843767A1 (en) 1999-04-01
GB9819947D0 (en) 1998-11-04
GB2329732A (en) 1999-03-31
BR9803589A (en) 1999-10-13
KR19990030150A (en) 1999-04-26
KR100317212B1 (en) 2002-01-16

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