ES8306299A1 - Frequency converter and phase locked loop circuit - Google Patents
Frequency converter and phase locked loop circuitInfo
- Publication number
- ES8306299A1 ES8306299A1 ES499561A ES499561A ES8306299A1 ES 8306299 A1 ES8306299 A1 ES 8306299A1 ES 499561 A ES499561 A ES 499561A ES 499561 A ES499561 A ES 499561A ES 8306299 A1 ES8306299 A1 ES 8306299A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- oscillating
- frequency
- output signal
- proportional
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A continuously operating converter circuit for generating a voltage output signal, which is proportional to the frequency of an oscillating input signal and an oscillating output signal which has the same frequency and a fixed phase relationship with the oscillating input signal, contains a multiplier circuit which responds to the oscillating input signal and an oscillating feedback signal and supplies as a product of these two signals an error signal which is then integrated in order to generate the voltage output signal. The oscillating feedback signal, which also serves as the oscillating output signal, is obtained from an oscillator within the circuit whose output frequency is a function of a control signal which is proportional to the combined values of the voltage output signal and a reference signal whose value is proportional to the frequency of the oscillating input signal which is to be expected.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12534680A | 1980-02-28 | 1980-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES499561A0 ES499561A0 (en) | 1982-09-01 |
ES8306299A1 true ES8306299A1 (en) | 1982-09-01 |
Family
ID=22419316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES499561A Expired ES8306299A1 (en) | 1980-02-28 | 1981-02-18 | Frequency converter and phase locked loop circuit |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS56138337A (en) |
DE (1) | DE3106078A1 (en) |
ES (1) | ES8306299A1 (en) |
IT (1) | IT1135605B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4451777A (en) * | 1981-09-10 | 1984-05-29 | Westinghouse Electric Corp. | Static VAR generation for transmission line compensation |
JPH0770999B2 (en) * | 1991-02-12 | 1995-07-31 | セイコーエプソン株式会社 | Voltage controlled oscillator |
JP2611637B2 (en) * | 1993-11-22 | 1997-05-21 | 日本電気株式会社 | Image compression / decompression device |
-
1981
- 1981-02-18 ES ES499561A patent/ES8306299A1/en not_active Expired
- 1981-02-19 DE DE19813106078 patent/DE3106078A1/en not_active Withdrawn
- 1981-02-24 JP JP2500481A patent/JPS56138337A/en active Pending
- 1981-02-24 IT IT19943/81A patent/IT1135605B/en active
Also Published As
Publication number | Publication date |
---|---|
ES499561A0 (en) | 1982-09-01 |
DE3106078A1 (en) | 1981-12-10 |
IT1135605B (en) | 1986-08-27 |
JPS56138337A (en) | 1981-10-28 |
IT8119943A0 (en) | 1981-02-24 |
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