JPS57174930A - Electronic device - Google Patents

Electronic device

Info

Publication number
JPS57174930A
JPS57174930A JP6012481A JP6012481A JPS57174930A JP S57174930 A JPS57174930 A JP S57174930A JP 6012481 A JP6012481 A JP 6012481A JP 6012481 A JP6012481 A JP 6012481A JP S57174930 A JPS57174930 A JP S57174930A
Authority
JP
Japan
Prior art keywords
converter
switch element
power
power supply
conversion
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
JP6012481A
Other languages
Japanese (ja)
Inventor
Fukuyoshi Watanabe
Shoji Shindo
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
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6012481A priority Critical patent/JPS57174930A/en
Publication of JPS57174930A publication Critical patent/JPS57174930A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To reduce the power consumptin of an A-D converter, by providing a switch which detects the operation of the A-D converter and switches power supply. CONSTITUTION:An A-D converter 1 receives an analog data (a) from a temperature detecting circuit 2 consisting of a resistor R1 and a thermister RX and a reference voltage (b) from a reference voltage generating circuit 4 consisiting of resistors R2-R4 and a Zener diode 3. A switch element 11 is inserted to a supply path for a power supply VB for the circuits 2 and 4. The switch element 11 is controlled with a detection signal (g) indicating the opertion of the A-D converter 1. When a conversion start signal (d) is inputted, the operation detection signal (g) is at a low level and the switch element 11 turns on. Thus, the power supply is given to the circuits 2 and 4 to obtain a conversion digital output (c). The signal (g) is at high level at the end of conversion and the switch element 11 turns off to stop the supply of the power. Thus, the power consumption can be made less.
JP6012481A 1981-04-21 1981-04-21 Electronic device Pending JPS57174930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6012481A JPS57174930A (en) 1981-04-21 1981-04-21 Electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6012481A JPS57174930A (en) 1981-04-21 1981-04-21 Electronic device

Publications (1)

Publication Number Publication Date
JPS57174930A true JPS57174930A (en) 1982-10-27

Family

ID=13133061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6012481A Pending JPS57174930A (en) 1981-04-21 1981-04-21 Electronic device

Country Status (1)

Country Link
JP (1) JPS57174930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6399430U (en) * 1986-12-18 1988-06-28
JPH0157825U (en) * 1987-10-05 1989-04-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6399430U (en) * 1986-12-18 1988-06-28
JPH0157825U (en) * 1987-10-05 1989-04-11

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