GB8300098D0 - Circuit - Google Patents

Circuit

Info

Publication number
GB8300098D0
GB8300098D0 GB838300098A GB8300098A GB8300098D0 GB 8300098 D0 GB8300098 D0 GB 8300098D0 GB 838300098 A GB838300098 A GB 838300098A GB 8300098 A GB8300098 A GB 8300098A GB 8300098 D0 GB8300098 D0 GB 8300098D0
Authority
GB
United Kingdom
Prior art keywords
circuit
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
GB838300098A
Other versions
GB2133560B (en
GB2133560A (en
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 GB08300098A priority Critical patent/GB2133560B/en
Publication of GB8300098D0 publication Critical patent/GB8300098D0/en
Publication of GB2133560A publication Critical patent/GB2133560A/en
Application granted granted Critical
Publication of GB2133560B publication Critical patent/GB2133560B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/58—Testing
    • H01T13/60—Testing of electrical properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Emergency Alarm Devices (AREA)
GB08300098A 1983-01-05 1983-01-05 Circuit for monitoring the frequency of signal for controlling choppers of electric cars Expired GB2133560B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08300098A GB2133560B (en) 1983-01-05 1983-01-05 Circuit for monitoring the frequency of signal for controlling choppers of electric cars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08300098A GB2133560B (en) 1983-01-05 1983-01-05 Circuit for monitoring the frequency of signal for controlling choppers of electric cars

Publications (3)

Publication Number Publication Date
GB8300098D0 true GB8300098D0 (en) 1983-02-09
GB2133560A GB2133560A (en) 1984-07-25
GB2133560B GB2133560B (en) 1987-01-14

Family

ID=10535866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08300098A Expired GB2133560B (en) 1983-01-05 1983-01-05 Circuit for monitoring the frequency of signal for controlling choppers of electric cars

Country Status (1)

Country Link
GB (1) GB2133560B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1950684C3 (en) * 1969-10-08 1975-04-30 Wandel U. Goltermann, 7410 Reutlingen Circuit arrangement for the comparison of two frequencies

Also Published As

Publication number Publication date
GB2133560B (en) 1987-01-14
GB2133560A (en) 1984-07-25

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19951108

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960105