JPS57132458A - Insulation system - Google Patents

Insulation system

Info

Publication number
JPS57132458A
JPS57132458A JP1823481A JP1823481A JPS57132458A JP S57132458 A JPS57132458 A JP S57132458A JP 1823481 A JP1823481 A JP 1823481A JP 1823481 A JP1823481 A JP 1823481A JP S57132458 A JPS57132458 A JP S57132458A
Authority
JP
Japan
Prior art keywords
transformer
load
voltage
power
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
JP1823481A
Other languages
Japanese (ja)
Other versions
JPS5946147B2 (en
Inventor
Kiyoharu Inao
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP1823481A priority Critical patent/JPS5946147B2/en
Publication of JPS57132458A publication Critical patent/JPS57132458A/en
Publication of JPS5946147B2 publication Critical patent/JPS5946147B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
    • H04L25/0268—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling with modulation and subsequent demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To insulated a plurality of signals with a common insulator for output and to make binary modulation for the amount of load, by producing a high frequency power at one of two electric devices, transmitting the power to another device through a load detector and an insulator, rectifying the high frequency current at the other device and taking the result as a power. CONSTITUTION:An output of a high-frequency transmitter 1 of one electric device alternately controls drivers 2, 3, an AC voltage v1 is induced on the primary coil of a transformer 5, the voltage v1 is amplified at an amplifier 7 and applied to a reception circuit 8. The high-frequency power induced across the secondary coil of the transformer 5 is rectified with diodes 9, 10 and a capacitor 12 at another electric device, the rectified DC voltage is applied to a signal generating circuit 14, an output signal of the circuit 14 drives a transistor TR13 connected across the transformer 5 and a load resistance of the transformer 6 is modulated in binary value. According to the binary modulation of the load resistor, a resistance 6 of the primary coil of the transformer 5 is changed in binary value and the change in the load is detected at the reception circuit 8.
JP1823481A 1981-02-10 1981-02-10 insulation device Expired JPS5946147B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1823481A JPS5946147B2 (en) 1981-02-10 1981-02-10 insulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1823481A JPS5946147B2 (en) 1981-02-10 1981-02-10 insulation device

Publications (2)

Publication Number Publication Date
JPS57132458A true JPS57132458A (en) 1982-08-16
JPS5946147B2 JPS5946147B2 (en) 1984-11-10

Family

ID=11965976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1823481A Expired JPS5946147B2 (en) 1981-02-10 1981-02-10 insulation device

Country Status (1)

Country Link
JP (1) JPS5946147B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014030244A (en) * 2005-06-23 2014-02-13 Agere Systems Inc Single-transformer digital isolation barrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6345631U (en) * 1986-09-11 1988-03-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014030244A (en) * 2005-06-23 2014-02-13 Agere Systems Inc Single-transformer digital isolation barrier

Also Published As

Publication number Publication date
JPS5946147B2 (en) 1984-11-10

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