JPS5582336A - Microcomputer circuit - Google Patents

Microcomputer circuit

Info

Publication number
JPS5582336A
JPS5582336A JP15520278A JP15520278A JPS5582336A JP S5582336 A JPS5582336 A JP S5582336A JP 15520278 A JP15520278 A JP 15520278A JP 15520278 A JP15520278 A JP 15520278A JP S5582336 A JPS5582336 A JP S5582336A
Authority
JP
Japan
Prior art keywords
voltage
converter
comparing
reference voltage
terminal
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
JP15520278A
Other languages
Japanese (ja)
Inventor
Hiroaki Nishiyama
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 JP15520278A priority Critical patent/JPS5582336A/en
Publication of JPS5582336A publication Critical patent/JPS5582336A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a converted digital value optimum by comparing a decided input voltage with the comparing reference voltage outputted from a D/A converter and outputting the comparison result and changing the comparing reference volgage even if the decided input voltage is fluctuated.
CONSTITUTION: A/D converter 23 converts the reference voltage inputted to inputted terminal 22 to a digital value by a program which is made into a ROM on a basis of another reference voltage VREF 10. D/A converter 24 generates a comparing voltage by the digital value converted by this converter 23 and voltage VREF 19 and outputs this voltage to comparator 14. Then, comparator 14 compares a decided input voltage inputted to terminal 15 with the comparing reference voltage outputted from D/A converter 24 and outputs the comparison result from terminal 17. As a result, the comparing reference voltage can be changed and be adapted easily to correct the converted digital value to an optimum value by changing the reference voltage inputted to input terminal 22 even if the decided input voltage is fluctuated.
COPYRIGHT: (C)1980,JPO&Japio
JP15520278A 1978-12-15 1978-12-15 Microcomputer circuit Pending JPS5582336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15520278A JPS5582336A (en) 1978-12-15 1978-12-15 Microcomputer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15520278A JPS5582336A (en) 1978-12-15 1978-12-15 Microcomputer circuit

Publications (1)

Publication Number Publication Date
JPS5582336A true JPS5582336A (en) 1980-06-21

Family

ID=15600721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15520278A Pending JPS5582336A (en) 1978-12-15 1978-12-15 Microcomputer circuit

Country Status (1)

Country Link
JP (1) JPS5582336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0567756U (en) * 1992-02-21 1993-09-10 ミサワホーム株式会社 Stepping prevention tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0567756U (en) * 1992-02-21 1993-09-10 ミサワホーム株式会社 Stepping prevention tool

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