[go: up one dir, main page]

GB1484789A - Power supply circuits - Google Patents

Power supply circuits

Info

Publication number
GB1484789A
GB1484789A GB3608475A GB3608475A GB1484789A GB 1484789 A GB1484789 A GB 1484789A GB 3608475 A GB3608475 A GB 3608475A GB 3608475 A GB3608475 A GB 3608475A GB 1484789 A GB1484789 A GB 1484789A
Authority
GB
United Kingdom
Prior art keywords
resistor
voltage
potentiometer
produced
stabilized
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
GB3608475A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3608475A priority Critical patent/GB1484789A/en
Publication of GB1484789A publication Critical patent/GB1484789A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/18—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using Zener diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

1484789 Automatic voltage regulation STANDARD TELEPHONES & CABLES Ltd 2 Sept 1975 36084/75 Heading G3X A regulated direct voltage is obtained by amplifying a voltage tapped from a potentiometer connected across two reference voltages each produced by a series combination of a stabilized current supply, a resistor and a Zenor diode. The first reference voltage is formed by amplifying the voltage appearing across the Zenor diode, and the second reference voltage is that produced at the junction of the current supply and the resistor. As shown, a constant current source is connected to one end of a potentiometer P and to a resistor Rl in series with a Zenor diode Vz. The other end of the potentiometer is connected to the output of a stabilized amplifier Al with a gain-varying resistor R3 and an input connected to the junction of the resistor R1 and the Zener diode Vz. The slider of the potentiometer P sets the value of a stabilized output voltage produced by an amplifier A2.
GB3608475A 1975-09-02 1975-09-02 Power supply circuits Expired GB1484789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3608475A GB1484789A (en) 1975-09-02 1975-09-02 Power supply circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3608475A GB1484789A (en) 1975-09-02 1975-09-02 Power supply circuits

Publications (1)

Publication Number Publication Date
GB1484789A true GB1484789A (en) 1977-09-08

Family

ID=10384773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3608475A Expired GB1484789A (en) 1975-09-02 1975-09-02 Power supply circuits

Country Status (1)

Country Link
GB (1) GB1484789A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254705A (en) * 1977-04-15 1981-03-10 Hitachi Koki Company Limited Printing magnet drive device
WO1993004423A1 (en) * 1991-08-21 1993-03-04 Analog Devices, Incorporated Method for temperature-compensating zener diodes having either positive or negative temperature coefficients
US5252908A (en) * 1991-08-21 1993-10-12 Analog Devices, Incorporated Apparatus and method for temperature-compensating Zener diodes having either positive or negative temperature coefficients

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254705A (en) * 1977-04-15 1981-03-10 Hitachi Koki Company Limited Printing magnet drive device
WO1993004423A1 (en) * 1991-08-21 1993-03-04 Analog Devices, Incorporated Method for temperature-compensating zener diodes having either positive or negative temperature coefficients
US5252908A (en) * 1991-08-21 1993-10-12 Analog Devices, Incorporated Apparatus and method for temperature-compensating Zener diodes having either positive or negative temperature coefficients

Similar Documents

Publication Publication Date Title
GB1405497A (en) Voltage regulator circuit
GB1434444A (en) Monolithic integrable series stabilization circuit
GB1515446A (en) Constant voltage circuit
GB1517429A (en) Telephone line looping circuit
GB1525544A (en) Transistorized power supply circuit
GB1484789A (en) Power supply circuits
ES8702006A1 (en) Circuit for monitoring the electric current supply of a consumer.
GB1404549A (en) Voltage regulator
GB900259A (en) Improvements in and relating to voltage regulation and current limitation circuits
GB1248668A (en) D.c. voltage regulator
JPS5654117A (en) Schmitt circuit
GB975453A (en) Improvements in or relating to transistor circuits
GB1044461A (en) Improvements in and relating to transistor amplifiers
SU702364A1 (en) D-c voltage stabilizer
JPS5755426A (en) Direct current power supply circuit
ES475477A1 (en) Vertical deflection circuit control for TV receivers - has two diodes between transistor bases, shunted by capacitor, with one base connected through resistor to supply voltage
GB1105259A (en) A voltage stabilising circuit
GB1506882A (en) Current regulating circuits
JPS5523609A (en) Two wire type signal conversion amplifier
GB1536023A (en) Transistor amplifier circuits
GB1084349A (en)
JPS57203114A (en) Power supply circuit
JPS5597710A (en) Converter circuit
JPS5318367A (en) Bias circuit
GB834103A (en) Improvements in electrical regulator devices

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee