JPS56143003A - Electronic control circuit - Google Patents

Electronic control circuit

Info

Publication number
JPS56143003A
JPS56143003A JP4719280A JP4719280A JPS56143003A JP S56143003 A JPS56143003 A JP S56143003A JP 4719280 A JP4719280 A JP 4719280A JP 4719280 A JP4719280 A JP 4719280A JP S56143003 A JPS56143003 A JP S56143003A
Authority
JP
Japan
Prior art keywords
voltage
signal
coincidence
cooling
code
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.)
Granted
Application number
JP4719280A
Other languages
Japanese (ja)
Other versions
JPH0234041B2 (en
Inventor
Yasuhiro Ogita
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 JP4719280A priority Critical patent/JPH0234041B2/en
Publication of JPS56143003A publication Critical patent/JPS56143003A/en
Publication of JPH0234041B2 publication Critical patent/JPH0234041B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/14—Automatic controllers electric in which the output signal represents a discontinuous function of the deviation from the desired value, i.e. discontinuous controllers
    • G05B11/16—Two-step controllers, e.g. with on/off action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To enable to adjust the output by detecting the voltage in coincidence with the detected comparison voltage through the change of the comparison voltage with on/off of the ladder circuit. CONSTITUTION:When a signal voltage 51 which is the off signal of freezing chamber cooling is selected, since the resistance value of a temperature sensor 7 is changed in following to the freezing chamber temperature, the signal voltage 51 is changed. The signal voltage 51 is given to a comparator 4 as a detected voltage 42. On the other hand, a comparison voltage 41 is changed through the combination of resistors R1-R5 of a ladder circuit with the operation of an operation circuit 3, and the combination of the resistors in the ladder circuit 6 at the coincidence voltage of the signal voltage 41=signal voltage 42, e.g. 00101 is written in a RAM incorporated in the operation circuit 3. If the code is in coincidence with the code 00101 registrated in a ROM for off voltage of the signal voltage 51 set at first, the cooling is made to off. But, the cooling of the freezing chamber is kept until the coincidence voltage of the detected voltage 42 is the voltage having the code registrated in ROM. That is, the control of cooling off is not made.
JP4719280A 1980-04-10 1980-04-10 DENSHISEIGYOREITOREIZOKO Expired - Lifetime JPH0234041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4719280A JPH0234041B2 (en) 1980-04-10 1980-04-10 DENSHISEIGYOREITOREIZOKO

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4719280A JPH0234041B2 (en) 1980-04-10 1980-04-10 DENSHISEIGYOREITOREIZOKO

Publications (2)

Publication Number Publication Date
JPS56143003A true JPS56143003A (en) 1981-11-07
JPH0234041B2 JPH0234041B2 (en) 1990-08-01

Family

ID=12768241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4719280A Expired - Lifetime JPH0234041B2 (en) 1980-04-10 1980-04-10 DENSHISEIGYOREITOREIZOKO

Country Status (1)

Country Link
JP (1) JPH0234041B2 (en)

Also Published As

Publication number Publication date
JPH0234041B2 (en) 1990-08-01

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