GB1065692A - Improvements in and relating to electric supply apparatus - Google Patents

Improvements in and relating to electric supply apparatus

Info

Publication number
GB1065692A
GB1065692A GB4038862A GB4038862A GB1065692A GB 1065692 A GB1065692 A GB 1065692A GB 4038862 A GB4038862 A GB 4038862A GB 4038862 A GB4038862 A GB 4038862A GB 1065692 A GB1065692 A GB 1065692A
Authority
GB
United Kingdom
Prior art keywords
voltage
amplifier
current
input
derived
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
GB4038862A
Inventor
George Oscar Walter
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.)
A P T ELECTRONIC IND Ltd
Original Assignee
A P T ELECTRONIC IND 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 A P T ELECTRONIC IND Ltd filed Critical A P T ELECTRONIC IND Ltd
Priority to GB4038862A priority Critical patent/GB1065692A/en
Publication of GB1065692A publication Critical patent/GB1065692A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05F1/565—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/573—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector
    • G05F1/5735—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector with foldback current limiting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Amplifiers (AREA)

Abstract

1,065,692. Automatic control of current and voltage. A.P.T. ELECTRONIC INDUSTRIES Ltd. Jan.24, 1964 [Oct.25, 1962], No.40388/62. Heading G3R. A voltage or current regulator includes a series control device which is protected from excessive dissipation by a protection arrangement responding to the sum of voltages derived from the current through the device and the voltage across the device. As shown, a voltage regulator comprises input terminals 10 and a series device 12 controlled in known manner over an amplifier 16 to maintain a constant voltage at output terminals 11. The impedance of the device 12 is also controlled by the output of an amplifier 18 which receives a first input proportional to the load current and derived from a resistor R, and a second input proportional to the voltage across the device 12 and derived from a voltage divider R1, R2; the amplifier 18 is arranged to be ineffective if its input is less than a critical value, but if this value is exceeded, amplifier 18 overrides the control effected by amplifier 16 and thereafter controls the device 12 to prevent excessive dissipation in the device. Backing voltage source 20, which may relate to the input voltage of the regulator, and a diode 21 determine the minimum voltage across the device 12 necessary to cause a voltage to be developed across resistor R1. The devices 12, 16, 18 may comprise transistors, and the devices 14, 20 may include Zener diodes, Fig.4 (not shown). Modifications are described with reference to Figs. 5, 8 and 9 (not shown). The circuit may be modified to maintain a constant current output by omitting the voltage controlled amplifier 16.
GB4038862A 1962-10-25 1962-10-25 Improvements in and relating to electric supply apparatus Expired GB1065692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4038862A GB1065692A (en) 1962-10-25 1962-10-25 Improvements in and relating to electric supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4038862A GB1065692A (en) 1962-10-25 1962-10-25 Improvements in and relating to electric supply apparatus

Publications (1)

Publication Number Publication Date
GB1065692A true GB1065692A (en) 1967-04-19

Family

ID=10414650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4038862A Expired GB1065692A (en) 1962-10-25 1962-10-25 Improvements in and relating to electric supply apparatus

Country Status (1)

Country Link
GB (1) GB1065692A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554990A1 (en) * 1983-11-15 1985-05-17 Ates Deutschland Halbleiter SERIES VOLTAGE REGULATOR CIRCUIT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554990A1 (en) * 1983-11-15 1985-05-17 Ates Deutschland Halbleiter SERIES VOLTAGE REGULATOR CIRCUIT
GB2151376A (en) * 1983-11-15 1985-07-17 Ates Deutschland Halbleiter }a series voltage regulator}
US4704572A (en) * 1983-11-15 1987-11-03 Sgs-Ates Deutschland Halbleiter/Bauelemente Gmbh Series voltage regulator with limited current consumption at low input voltages

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