JPS5547705A - Voltage controlled oscillation circuit - Google Patents
Voltage controlled oscillation circuitInfo
- Publication number
- JPS5547705A JPS5547705A JP12073778A JP12073778A JPS5547705A JP S5547705 A JPS5547705 A JP S5547705A JP 12073778 A JP12073778 A JP 12073778A JP 12073778 A JP12073778 A JP 12073778A JP S5547705 A JPS5547705 A JP S5547705A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- adder
- signal
- circuit
- addition
- 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.)
- Granted
Links
Abstract
PURPOSE: To increase the stability by lowering the phase shift sensitivity, through a plurality of phase shifters coupled via buffer, in a phase shift type oscillation circuit.
CONSTITUTION: The output signal a0 of the tank circuit 11 is kept constant for the amplitude with the limiter circuit 12 and it is fed to the adders 22 and 23 and also to the delay phase circuit 13 and advance phase circuit 14. The delay phase is made at the phase delay circuits 13 and 17 and the phase lead is at the phase advance circuits 14 and 18, respectively at two stages. The signal phase shifted is made for addition at the adder 22 after addition at the adder 19. The addition of the reference phase signal a, output signal c of the adder 22 and inversion output signal -b of the adder 19 are added at the adder 23. In this case, the phase of the output signal d of the adder 23 can be changed by changing the relative amplitude of each signal with the external control voltage Vc. Oscillation is made by positive feedback of this addition signal d to the tank circuit 11.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12073778A JPS5547705A (en) | 1978-09-30 | 1978-09-30 | Voltage controlled oscillation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12073778A JPS5547705A (en) | 1978-09-30 | 1978-09-30 | Voltage controlled oscillation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5547705A true JPS5547705A (en) | 1980-04-04 |
JPS6123685B2 JPS6123685B2 (en) | 1986-06-06 |
Family
ID=14793730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12073778A Granted JPS5547705A (en) | 1978-09-30 | 1978-09-30 | Voltage controlled oscillation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5547705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59154804A (en) * | 1983-02-23 | 1984-09-03 | Hitachi Ltd | Vco circuit |
-
1978
- 1978-09-30 JP JP12073778A patent/JPS5547705A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59154804A (en) * | 1983-02-23 | 1984-09-03 | Hitachi Ltd | Vco circuit |
JPH0318761B2 (en) * | 1983-02-23 | 1991-03-13 | Hitachi Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6123685B2 (en) | 1986-06-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57164620A (en) | Phase comparator | |
JPS5547705A (en) | Voltage controlled oscillation circuit | |
JPS559264A (en) | Control system for positioning | |
JPS5552613A (en) | Sound control circuit | |
JPS5573105A (en) | Elastic surface wave oscillator | |
JPS52114256A (en) | Phase synchronization circuit | |
JPS5239156A (en) | High voltage generating circuit | |
JPS5675723A (en) | Oscillation circuit | |
JPS54916A (en) | Frequency conversion circuit | |
JPS5350984A (en) | High frequency high output transistor | |
JPS51140513A (en) | Color burst signal extracting circuit | |
JPS57159145A (en) | Am stereo receiver | |
JPS5316831A (en) | Control method for inverter | |
JPS521736A (en) | Change over circuit of multi stage output power in electric range | |
JPS53144247A (en) | Phase-shifting circuit | |
JPS533361A (en) | Displacement converter | |
JPS5549979A (en) | Controller for thyristor transducer | |
JPS5425659A (en) | Phase synchronous unit | |
JPS5366353A (en) | Carrier reproducer | |
JPS5258311A (en) | Time error correcting unit | |
JPS52107753A (en) | Gain control circuit | |
JPS5292326A (en) | Inverter | |
JPS5543987A (en) | Phase comparator | |
JPS541824A (en) | Inverter control circuit | |
JPS5229937A (en) | Distant relay |