JPS5535548A - Low-frequency alternating current generation unit - Google Patents

Low-frequency alternating current generation unit

Info

Publication number
JPS5535548A
JPS5535548A JP10880778A JP10880778A JPS5535548A JP S5535548 A JPS5535548 A JP S5535548A JP 10880778 A JP10880778 A JP 10880778A JP 10880778 A JP10880778 A JP 10880778A JP S5535548 A JPS5535548 A JP S5535548A
Authority
JP
Japan
Prior art keywords
frequency
low
transformer
generation unit
output
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
Application number
JP10880778A
Other languages
Japanese (ja)
Other versions
JPH0261180B2 (en
Inventor
Nagakatsu Naganuma
Shinichiro Shiraishi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10880778A priority Critical patent/JPS5535548A/en
Publication of JPS5535548A publication Critical patent/JPS5535548A/en
Publication of JPH0261180B2 publication Critical patent/JPH0261180B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/42—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To make the low-frequency AC generation unit in a transmission communication unit, etc., small-size and light by performing voltage conversion and a function of an insulating transformer by a high-frequency transformer. CONSTITUTION:Output A and B of 18 to 25K Hz of high-frequency oscillator circuit 1 are converted to a voltage by high-frequency transformer 2 which functions as an insulating transformer also, and output C is led to rectifier circuits 3 and 4 and is converted to DC D and E which have a positive polarity and a negative polarity respectively and have the same absolute value. These outputs D and E are led to photo coupled semiconductor elements 5 and 6 respectively, and elements 5 and 6 receive alternate voltages F and G, which are supplied from low-frequency AC generator 8, as control inputs and are switched to generate a low-frequency AC at output terminal 7. Since photo coupled semiconductor elements have the control input and the controlled switching part insulated electrically from each other with photo coupling, a low-frequency AC current independent of the supply DC power source circuit can be obtained.
JP10880778A 1978-09-04 1978-09-04 Low-frequency alternating current generation unit Granted JPS5535548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10880778A JPS5535548A (en) 1978-09-04 1978-09-04 Low-frequency alternating current generation unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10880778A JPS5535548A (en) 1978-09-04 1978-09-04 Low-frequency alternating current generation unit

Publications (2)

Publication Number Publication Date
JPS5535548A true JPS5535548A (en) 1980-03-12
JPH0261180B2 JPH0261180B2 (en) 1990-12-19

Family

ID=14493974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10880778A Granted JPS5535548A (en) 1978-09-04 1978-09-04 Low-frequency alternating current generation unit

Country Status (1)

Country Link
JP (1) JPS5535548A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150251U (en) * 1984-03-16 1985-10-05 富士工業株式会社 Architectural metal edging materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150251U (en) * 1984-03-16 1985-10-05 富士工業株式会社 Architectural metal edging materials

Also Published As

Publication number Publication date
JPH0261180B2 (en) 1990-12-19

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