JPS54107660A - Amplitude modulation circuit - Google Patents
Amplitude modulation circuitInfo
- Publication number
- JPS54107660A JPS54107660A JP1471478A JP1471478A JPS54107660A JP S54107660 A JPS54107660 A JP S54107660A JP 1471478 A JP1471478 A JP 1471478A JP 1471478 A JP1471478 A JP 1471478A JP S54107660 A JPS54107660 A JP S54107660A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- circuit
- inputted
- modulation
- terminal
- 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
Landscapes
- Amplitude Modulation (AREA)
Abstract
PURPOSE: To offer the modulation circuit effective even if the carrier frequency is close to the modulated frequency, by performing amplitude modulation with comparatively simple constitution.
CONSTITUTION: The modulation signal is inputted at the terminal d and it is inputted to the variable passing circuit 5. Further, a part of the input signal to the terminal d is inverted for the polarity with the inversion amplifying circuit 4 and inputted to the variable passing circuit 5. Moreover, carrier is inputted to the terminal e. The variable passing circuit 5 passed through carrier by taking a voltage V0 as the center, and if the carrier is at a level exceeding the voltage V1 apart toward positive direction than V0, no carrier is passed thorugh. If the carrier is a level exceeding a given voltage V2 apart toward negative direction than V0, no carrier can be passed. V1 and V2 are varied while keeping the relation of opposite phase with the modulation signal. The signal amplitude-modulation can be obtained with the output of the circuit 5 from the band pass circuit 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1471478A JPS54107660A (en) | 1978-02-10 | 1978-02-10 | Amplitude modulation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1471478A JPS54107660A (en) | 1978-02-10 | 1978-02-10 | Amplitude modulation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54107660A true JPS54107660A (en) | 1979-08-23 |
JPS6126728B2 JPS6126728B2 (en) | 1986-06-21 |
Family
ID=11868806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1471478A Granted JPS54107660A (en) | 1978-02-10 | 1978-02-10 | Amplitude modulation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107660A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59189756A (en) * | 1983-04-11 | 1984-10-27 | Sony Corp | Digital am modulating circuit |
JPS6090912U (en) * | 1983-11-25 | 1985-06-21 | 株式会社村田製作所 | amplitude modulation circuit |
JPS60209697A (en) * | 1984-04-02 | 1985-10-22 | Hitachi Ltd | Axial-flow impeller |
-
1978
- 1978-02-10 JP JP1471478A patent/JPS54107660A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59189756A (en) * | 1983-04-11 | 1984-10-27 | Sony Corp | Digital am modulating circuit |
JPS6090912U (en) * | 1983-11-25 | 1985-06-21 | 株式会社村田製作所 | amplitude modulation circuit |
JPS60209697A (en) * | 1984-04-02 | 1985-10-22 | Hitachi Ltd | Axial-flow impeller |
Also Published As
Publication number | Publication date |
---|---|
JPS6126728B2 (en) | 1986-06-21 |
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