JPS641424A - Excess current detecting circuit - Google Patents

Excess current detecting circuit

Info

Publication number
JPS641424A
JPS641424A JP15608287A JP15608287A JPS641424A JP S641424 A JPS641424 A JP S641424A JP 15608287 A JP15608287 A JP 15608287A JP 15608287 A JP15608287 A JP 15608287A JP S641424 A JPS641424 A JP S641424A
Authority
JP
Japan
Prior art keywords
motor
signal
driving
gate
input
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
JP15608287A
Other languages
Japanese (ja)
Other versions
JPH011424A (en
Inventor
Futoshi Nishida
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP15608287A priority Critical patent/JPS641424A/en
Publication of JPH011424A publication Critical patent/JPH011424A/en
Publication of JPS641424A publication Critical patent/JPS641424A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

PURPOSE: To obtain the detecting circuit of less heat generation without consuming wasteful power, by controlling the stopping of a DC motor, when the input of signal showing driving current and excess current signal to a logical circuit is provided at the same time.
CONSTITUTION: By setting a wire for permitting the driving current for a DC motor 1 to flow to be a branch wire 14 from a motor relay 2, and by connecting the wire to the one side terminal of an AND gate 6, the input of signal during the driving of the motor or signal during the driving of no motor is provided. The output of a signal generating circuit 4 is connected to the other side terminal of the AND gate 6, and the input of normal signal or excess current signal is provided. Accordingly, when the input of the motor driving signal(1) and the normal signal(1) to the AND gate 6 is provided, then earth is connected to the motor relay 2 by a motor controlling circuit 5, and the DC motor 1 is driven. When the excess current signal(0) is detected, then the output of the AND gate 6 is turned into (0), and by the motor controlling circuit 5, the earth of the motor relay 2 is interruption-controlled, and a contact is opened, and the driving current to the DC motor 1 is interrupted and stopped the motor.
COPYRIGHT: (C)1989,JPO&Japio
JP15608287A 1987-06-23 1987-06-23 Excess current detecting circuit Pending JPS641424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15608287A JPS641424A (en) 1987-06-23 1987-06-23 Excess current detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15608287A JPS641424A (en) 1987-06-23 1987-06-23 Excess current detecting circuit

Publications (2)

Publication Number Publication Date
JPH011424A JPH011424A (en) 1989-01-05
JPS641424A true JPS641424A (en) 1989-01-05

Family

ID=15619904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15608287A Pending JPS641424A (en) 1987-06-23 1987-06-23 Excess current detecting circuit

Country Status (1)

Country Link
JP (1) JPS641424A (en)

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