IT1039852B - IMPROVEMENT IN POWER CIRCUITS - Google Patents

IMPROVEMENT IN POWER CIRCUITS

Info

Publication number
IT1039852B
IT1039852B IT25407/75A IT2540775A IT1039852B IT 1039852 B IT1039852 B IT 1039852B IT 25407/75 A IT25407/75 A IT 25407/75A IT 2540775 A IT2540775 A IT 2540775A IT 1039852 B IT1039852 B IT 1039852B
Authority
IT
Italy
Prior art keywords
improvement
power circuits
circuits
power
Prior art date
Application number
IT25407/75A
Other languages
Italian (it)
Original Assignee
Int Standard 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT1039852B publication Critical patent/IT1039852B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT25407/75A 1974-07-30 1975-07-15 IMPROVEMENT IN POWER CIRCUITS IT1039852B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3357074A GB1472442A (en) 1974-07-30 1974-07-30 Power supply circuits

Publications (1)

Publication Number Publication Date
IT1039852B true IT1039852B (en) 1979-12-10

Family

ID=10354661

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25407/75A IT1039852B (en) 1974-07-30 1975-07-15 IMPROVEMENT IN POWER CIRCUITS

Country Status (8)

Country Link
BE (1) BE831828A (en)
FR (1) FR2281019A1 (en)
GB (1) GB1472442A (en)
HK (1) HK5878A (en)
IE (1) IE41644B1 (en)
IT (1) IT1039852B (en)
NZ (1) NZ178241A (en)
ZA (1) ZA754856B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931464C2 (en) * 1979-08-02 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for connecting a transmission device of a modem to a telephone line
DE2931456C2 (en) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallel control circuit

Also Published As

Publication number Publication date
IE41644B1 (en) 1980-02-27
ZA754856B (en) 1976-09-29
GB1472442A (en) 1977-05-04
IE41644L (en) 1976-01-30
BE831828A (en) 1976-01-29
HK5878A (en) 1978-02-03
FR2281019A1 (en) 1976-02-27
FR2281019B3 (en) 1979-04-27
NZ178241A (en) 1978-03-06

Similar Documents

Publication Publication Date Title
IT1047720B (en) IMPROVEMENT IN THE DIAPS
IT1037603B (en) METHOD OF LAMINATION IN PARTICULAR FOR THE MANUFACTURE OF STANDARD CIRCUITS
SE7510828L (en) INVERTER
BE835930A (en) LOGIC CIRCUIT
IT1040772B (en) IMPROVEMENT IN TURBO ALTERNATORS
IT1035154B (en) IMPROVEMENT IN VOLTAGE CONVERTERS
IT1029929B (en) IMPROVEMENT IN ELECTRICAL CONTACT DEVICES
IT1052285B (en) IMPROVEMENT IN COMPRESSORS
IT969458B (en) IMPROVEMENT IN CURRENT REGO LATORS CIRCUITS
IT1032239B (en) IMPROVEMENT IN MOS CIRCUITS
SE7510759L (en) INVERTER
SE7506725L (en) POWER SEMI-LEADER COMPONENT
SE405301B (en) INVERTER
DE2552691B2 (en) VOLTAGE CHECK CIRCUIT
IT1073771B (en) IMPROVEMENT IN ELECTRICAL SAFETY CIRCUITS
IT994442B (en) IMPROVEMENT IN INTEGRATED CIRCUITS
IT1008690B (en) IMPROVEMENT IN PROTECTION DEVICES FOR ELECTRICAL CIRCUITS
IT1090447B (en) IMPROVEMENT IN TELEPHONE CIRCUITS
IT1039852B (en) IMPROVEMENT IN POWER CIRCUITS
IT1049615B (en) IMPROVEMENTS IN CIRCUITS FOR DISTRIBURIC MACHINES AND OTHER DEVICES WORKING WITH COINS
IT1005939B (en) IMPROVEMENT IN ELECTRICAL CIRCUIT DISCONNECTORS
JPS5128345A (en) IN * RAINHOSHIKI HEDOROSHORIHO
IT1032354B (en) IMPROVEMENT IN THE CIRCUITS HOOKED IN PHASE
IT1060508B (en) IMPROVEMENT IN TELEPHONE JUNCTION DEVICES
SE7504403L (en) CURRENT-ADVANCED CIRCUITS