JPS5595406A - Amplitude modulator - Google Patents

Amplitude modulator

Info

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
Application number
JP352779A
Other languages
Japanese (ja)
Inventor
Kiyomi Kawamura
Seiji Isobe
Hiroshi Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP352779A priority Critical patent/JPS5595406A/en
Publication of JPS5595406A publication Critical patent/JPS5595406A/en
Pending legal-status Critical Current

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
JP352779A 1979-01-16 1979-01-16 Amplitude modulator Pending JPS5595406A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161206A (en) * 1974-09-30 1976-05-27 Westinghouse Electric Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161206A (en) * 1974-09-30 1976-05-27 Westinghouse Electric Corp

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