JPS6486299A - Input and output isolating type two-wire transmitter - Google Patents

Input and output isolating type two-wire transmitter

Info

Publication number
JPS6486299A
JPS6486299A JP24321687A JP24321687A JPS6486299A JP S6486299 A JPS6486299 A JP S6486299A JP 24321687 A JP24321687 A JP 24321687A JP 24321687 A JP24321687 A JP 24321687A JP S6486299 A JPS6486299 A JP S6486299A
Authority
JP
Japan
Prior art keywords
input
input voltage
transformer
current
circuit
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
JP24321687A
Other languages
Japanese (ja)
Inventor
Akira Taniguchi
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
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 filed Critical Toshiba Corp
Priority to JP24321687A priority Critical patent/JPS6486299A/en
Publication of JPS6486299A publication Critical patent/JPS6486299A/en
Pending legal-status Critical Current

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  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To miniaturize a whole device and to obtain a low cost by executing the insulation of a power source and a signal between an input and an output with one insulating transformer. CONSTITUTION:Direct current power is supplied from a direct current power source 23 in a receiving side 22 through a DC/DC converter 24 to a transmitting side 21. When an input voltage as a detecting value is added to the transmitting side 21, a current in response to the input voltage is flown to an output resistance RL in the receiving side 22. The DC/DC converter 24 includes a non-stable multi-vibrator 27, an FET switch 28, a transformer 29 and a rectifying circuit 31 and a constant current circuit 32 is connected to the rectifying circuit 31. This constant current circuit 32 controls the load current of the secondary side of the transformer 29 and specifies a load current at a value to be proportional to the input voltage.
JP24321687A 1987-09-28 1987-09-28 Input and output isolating type two-wire transmitter Pending JPS6486299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24321687A JPS6486299A (en) 1987-09-28 1987-09-28 Input and output isolating type two-wire transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24321687A JPS6486299A (en) 1987-09-28 1987-09-28 Input and output isolating type two-wire transmitter

Publications (1)

Publication Number Publication Date
JPS6486299A true JPS6486299A (en) 1989-03-30

Family

ID=17100554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24321687A Pending JPS6486299A (en) 1987-09-28 1987-09-28 Input and output isolating type two-wire transmitter

Country Status (1)

Country Link
JP (1) JPS6486299A (en)

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