JPS558177A - Digital circuit - Google Patents

Digital circuit

Info

Publication number
JPS558177A
JPS558177A JP8173878A JP8173878A JPS558177A JP S558177 A JPS558177 A JP S558177A JP 8173878 A JP8173878 A JP 8173878A JP 8173878 A JP8173878 A JP 8173878A JP S558177 A JPS558177 A JP S558177A
Authority
JP
Japan
Prior art keywords
circuit
diode
decoder
level
signals
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
JP8173878A
Other languages
Japanese (ja)
Inventor
Teruhiko Tsuchiya
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8173878A priority Critical patent/JPS558177A/en
Publication of JPS558177A publication Critical patent/JPS558177A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain a decoder featuring a reduced number of the component parts by providing the decoder circuit and the resistance used in common to photo isolator PI and the PI diode to the circuit which converts the binary digital signal into the natural number and then insulates it with PI.
CONSTITUTION: Binary digital signals 13a∼13d are supplied to decoder circuit 11 and then converted via transistors Tr16... into natural numbers 0∼9 signals 14a ∼14j to be supplied to diode 17 of photo isolator PI12. The current flows to diode 17 when the output of circuit 11 features the L level, and the output signal of circuit 11 features the L level at any point only with one point among signals 14a∼ 14j. Thus the current flows to the diode of PI12 through common resistance 15 even with any signal turned to the L level and is then delivered through Tr part 18. As a result, a low-cost insulated decoder can be obtained with a reduced number of the component parts.
COPYRIGHT: (C)1980,JPO&Japio
JP8173878A 1978-07-04 1978-07-04 Digital circuit Pending JPS558177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8173878A JPS558177A (en) 1978-07-04 1978-07-04 Digital circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8173878A JPS558177A (en) 1978-07-04 1978-07-04 Digital circuit

Publications (1)

Publication Number Publication Date
JPS558177A true JPS558177A (en) 1980-01-21

Family

ID=13754767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8173878A Pending JPS558177A (en) 1978-07-04 1978-07-04 Digital circuit

Country Status (1)

Country Link
JP (1) JPS558177A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139352A (en) * 1981-02-20 1982-08-28 Toyo Boseki Therapeutic resin composition
JPS6079438U (en) * 1983-11-08 1985-06-03 東海ゴム工業株式会社 Artificial kidney dialysate transport hose
JPS61253067A (en) * 1985-04-30 1986-11-10 カネボウ株式会社 Composite material adsorbing albumin
JPS6216769A (en) * 1985-07-16 1987-01-24 カネボウ株式会社 Composite material having albumin adsorbed therewith

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139352A (en) * 1981-02-20 1982-08-28 Toyo Boseki Therapeutic resin composition
JPS6079438U (en) * 1983-11-08 1985-06-03 東海ゴム工業株式会社 Artificial kidney dialysate transport hose
JPS61253067A (en) * 1985-04-30 1986-11-10 カネボウ株式会社 Composite material adsorbing albumin
JPS6216769A (en) * 1985-07-16 1987-01-24 カネボウ株式会社 Composite material having albumin adsorbed therewith

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