JPS55646A - Analog-digital converting device - Google Patents

Analog-digital converting device

Info

Publication number
JPS55646A
JPS55646A JP7339978A JP7339978A JPS55646A JP S55646 A JPS55646 A JP S55646A JP 7339978 A JP7339978 A JP 7339978A JP 7339978 A JP7339978 A JP 7339978A JP S55646 A JPS55646 A JP S55646A
Authority
JP
Japan
Prior art keywords
counter
converting device
subtraction
digital data
addition
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
JP7339978A
Other languages
Japanese (ja)
Inventor
Yutaka Harada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7339978A priority Critical patent/JPS55646A/en
Publication of JPS55646A publication Critical patent/JPS55646A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize adjustment for the accuracy of the A/D converting device just by changing the bit number of the addition/subtraction counter. The A/D converting device uses the D/A converter which is capable of controlling its average value through control of the duty ratio.
CONSTITUTION: The binary coded digital data is stored in addition/subtraction counter 12, and the digital data of counter 12 is loaded in parallel to subtraction counter 13. Then flip-flop 16 is reset when the digital data is loaded to counter 13 and turned zero by the clock signal. The output signal of flip-flop 16 is then integrated 17, and this output value is compared with the input signal. Based on this comparison result, counter 12 is set to addition or subtraction.
COPYRIGHT: (C)1980,JPO&Japio
JP7339978A 1978-06-16 1978-06-16 Analog-digital converting device Pending JPS55646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7339978A JPS55646A (en) 1978-06-16 1978-06-16 Analog-digital converting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7339978A JPS55646A (en) 1978-06-16 1978-06-16 Analog-digital converting device

Publications (1)

Publication Number Publication Date
JPS55646A true JPS55646A (en) 1980-01-07

Family

ID=13517072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7339978A Pending JPS55646A (en) 1978-06-16 1978-06-16 Analog-digital converting device

Country Status (1)

Country Link
JP (1) JPS55646A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181227A (en) * 1981-04-30 1982-11-08 Yokogawa Hokushin Electric Corp Analog-to-digital converter
JPH01189231A (en) * 1988-01-22 1989-07-28 Matsushita Electric Ind Co Ltd Analog/digital converter
KR100220976B1 (en) * 1997-04-10 1999-09-15 김병남 Recovering method for co,ni,cu from the scrap of diamond tools

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181227A (en) * 1981-04-30 1982-11-08 Yokogawa Hokushin Electric Corp Analog-to-digital converter
JPS6255733B2 (en) * 1981-04-30 1987-11-20 Yokokawa Denki Kk
JPH01189231A (en) * 1988-01-22 1989-07-28 Matsushita Electric Ind Co Ltd Analog/digital converter
KR100220976B1 (en) * 1997-04-10 1999-09-15 김병남 Recovering method for co,ni,cu from the scrap of diamond tools

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