JPS6485411A - Amplitude limit circuit - Google Patents
Amplitude limit circuitInfo
- Publication number
- JPS6485411A JPS6485411A JP62240867A JP24086787A JPS6485411A JP S6485411 A JPS6485411 A JP S6485411A JP 62240867 A JP62240867 A JP 62240867A JP 24086787 A JP24086787 A JP 24086787A JP S6485411 A JPS6485411 A JP S6485411A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- output
- circuit
- nonlinear amplifier
- voltage
- 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
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
PURPOSE:To suppress the phase change caused by a nonlinear amplifier by compensating a phase change caused in the nonlinear amplifier by a phase variable circuit. CONSTITUTION:An input signal from an input terminal 1 is made into a prescribed amplitude by a nonlinear amplifier 2, the output is given to a voltage controlled variable phase shifter circuit 3 to vary the output phase of the nonlinear amplifier 2 and the result is sent to an output terminal 4 as an output signal. Moreover, the phase of the input and output signals is compared by a phase comparator 5 and a DC voltage in response to the phase difference of both is sent as a comparison output. It is compared further with a prescribed reference voltage in a control circuit 6 and a difference voltage is given to the phase variable circuit 3 to control the phase shift variable of the circuit 3 in a direction where the difference voltage is decreased. Thus, the phase shift of the phase variable circuit 3 is decided in a direction where the phase of the input and output signals is coincident. Then the phase change caused in the nonlinear amplifier 2 is suppressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240867A JPS6485411A (en) | 1987-09-28 | 1987-09-28 | Amplitude limit circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240867A JPS6485411A (en) | 1987-09-28 | 1987-09-28 | Amplitude limit circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6485411A true JPS6485411A (en) | 1989-03-30 |
Family
ID=17065879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62240867A Pending JPS6485411A (en) | 1987-09-28 | 1987-09-28 | Amplitude limit circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6485411A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5726794A (en) * | 1994-12-28 | 1998-03-10 | Nec Corporation | DC bias controller for optical modulator |
-
1987
- 1987-09-28 JP JP62240867A patent/JPS6485411A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5726794A (en) * | 1994-12-28 | 1998-03-10 | Nec Corporation | DC bias controller for optical modulator |
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