GB1353232A - Constant-voltage generators - Google Patents

Constant-voltage generators

Info

Publication number
GB1353232A
GB1353232A GB3865071A GB3865071A GB1353232A GB 1353232 A GB1353232 A GB 1353232A GB 3865071 A GB3865071 A GB 3865071A GB 3865071 A GB3865071 A GB 3865071A GB 1353232 A GB1353232 A GB 1353232A
Authority
GB
United Kingdom
Prior art keywords
circuit
amplifier
short
unit
aug
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.)
Expired
Application number
GB3865071A
Other languages
English (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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1353232A publication Critical patent/GB1353232A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/563—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including two stages of regulation at least one of which is output level responsive, e.g. coarse and fine regulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
    • H02H7/1257—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers responsive to short circuit or wrong polarity in output circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Electrical Variables (AREA)
GB3865071A 1970-08-19 1971-08-18 Constant-voltage generators Expired GB1353232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702041118 DE2041118A1 (de) 1970-08-19 1970-08-19 Zur Speisung einer elektrolytischen Arbeitsvorrichtung dienender regelbarer Konstantspannungs-Generator

Publications (1)

Publication Number Publication Date
GB1353232A true GB1353232A (en) 1974-05-15

Family

ID=5780139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3865071A Expired GB1353232A (en) 1970-08-19 1971-08-18 Constant-voltage generators

Country Status (4)

Country Link
CH (1) CH524857A (OSRAM)
DE (1) DE2041118A1 (OSRAM)
FR (1) FR2102346B3 (OSRAM)
GB (1) GB1353232A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195325A (en) 1977-12-13 1980-03-25 National Research Development Corporation Means for protecting hazardous areas against electrical faults

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453446A1 (fr) * 1979-04-05 1980-10-31 Inst Cercetari Pentru Ind Dispositif de controle a source multiposte a thyristors pour installations d'ebarbage electrochimique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195325A (en) 1977-12-13 1980-03-25 National Research Development Corporation Means for protecting hazardous areas against electrical faults

Also Published As

Publication number Publication date
FR2102346B3 (OSRAM) 1973-11-30
CH524857A (de) 1972-06-30
FR2102346A7 (OSRAM) 1972-04-07
DE2041118A1 (de) 1972-03-02

Similar Documents

Publication Publication Date Title
GB876415A (en) Improvements in or relating to undervoltage sensing circuits
GB1448934A (en) Ground fault interrupter
GB1069093A (en) Improved circuit breaker control system
GB1304574A (OSRAM)
GB1142783A (en) Improvements relating to protective arrangements including electric level-responsive circuits
GB1193835A (en) Electroerosion Machining
GB1157733A (en) Overvoltage Protection Circuits
GB1110123A (en) Improvements relating to the protection of semi-conductor apparatus
GB1522668A (en) Dynamoelectric machines
GB1353232A (en) Constant-voltage generators
GB1250854A (OSRAM)
GB1184079A (en) Improvements in and relating to Surge Protection Circuits for Electrical Generators
GB1412036A (en) Interface assembly in a process control system for use where there is a fire hazard
GB1254587A (en) Circuits and methods for protecting electrical machining apparatus
GB1205053A (en) Electronic control circuits
GB1097809A (en) Improved circuit breaker control system
US3079533A (en) Protective relay
GB1102552A (en) Power supply circuit for electrical protective relays
GB1066910A (en) Improvements in and relating to inverters
GB1236837A (en) Protective relay power supply
US3714005A (en) Percentage of maximum current and threshold voltage responsive electronic control circuit and method
GB1165678A (en) A Power Supply Circuit for an Electrical Discharge Machining Apparatus.
GB1053029A (en) Earth fault protection means for direct current transmission systems
FR2422277A1 (fr) Dispositif de protection contre les defauts a la terre
GB919943A (en) Electrical control apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees