JPS5595406A - Amplitude modulator - Google Patents
Amplitude modulatorInfo
- Publication number
- JPS5595406A JPS5595406A JP352779A JP352779A JPS5595406A JP S5595406 A JPS5595406 A JP S5595406A JP 352779 A JP352779 A JP 352779A JP 352779 A JP352779 A JP 352779A JP S5595406 A JPS5595406 A JP S5595406A
- Authority
- JP
- Japan
- Prior art keywords
- output
- modulated
- sound signal
- pulse
- surge
- 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
- Amplitude Modulation (AREA)
Abstract
PURPOSE: To improve surge resistance characteristics by forming a circuit to which the emitter of a transistor to be modulated can be connected.
CONSTITUTION: A pulse-width-modulated signal is amplified by pulse-width transistor TR34 through pulse transformer 33 and its output is demodulated by LPF39 to obtain a sound signal output. This sound signal output is applied to the collector of TR41 to be modulated, which modulates and amplifies a carrier signal according to the sound signal. Then, the collector output of this TR41, i.e. modulation output is led out by way of coupling capacitor 42. In this way, since the emitter of TR41 is grounded, a surge voltage if applied from an antenna, etc., through capacitor 42 can be led to the ground, improving surge-resistance characteristics.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP352779A JPS5595406A (en) | 1979-01-16 | 1979-01-16 | Amplitude modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP352779A JPS5595406A (en) | 1979-01-16 | 1979-01-16 | Amplitude modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595406A true JPS5595406A (en) | 1980-07-19 |
Family
ID=11559844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP352779A Pending JPS5595406A (en) | 1979-01-16 | 1979-01-16 | Amplitude modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595406A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5161206A (en) * | 1974-09-30 | 1976-05-27 | Westinghouse Electric Corp |
-
1979
- 1979-01-16 JP JP352779A patent/JPS5595406A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5161206A (en) * | 1974-09-30 | 1976-05-27 | Westinghouse Electric Corp |
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