GB988585A - Current regulators - Google Patents

Current regulators

Info

Publication number
GB988585A
GB988585A GB3978261A GB3978261A GB988585A GB 988585 A GB988585 A GB 988585A GB 3978261 A GB3978261 A GB 3978261A GB 3978261 A GB3978261 A GB 3978261A GB 988585 A GB988585 A GB 988585A
Authority
GB
United Kingdom
Prior art keywords
voltage
capacitor
circuit
resistor
current
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
GB3978261A
Inventor
Derek Albert Paice
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.)
Lucas Support Services Ltd
Original Assignee
Rotax 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 Rotax Ltd filed Critical Rotax Ltd
Priority to GB3978261A priority Critical patent/GB988585A/en
Publication of GB988585A publication Critical patent/GB988585A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications

Landscapes

  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

988,585. Automatic control of current and voltage. ROTAX Ltd. Oct. 31,1962 [Nov. 7,1961], No. 39782/61. Heading G3R. In a current regulating circuit having input terminals 5, 6 and output terminals 7,8, a currentdependent voltage is derived from transductors 13,14,oscillator 17,rectifier 18 and resistor 19 and is applied to a capacitor 26 connected to the base of a transistor 21;when the voltage across the capacitor 26 exceeds a reference voltage, determined by a Zener diode 22 connected to the emitter of transistor 21,the transistor conducts so that a control switch 10, connected between terminals 5 and 7, is rendered non-conductive,whereby the current in the circuit is maintained constant. To minimise the possibility of high currents when the circuit is initially switched on, a timedelay switch 9 ensures that no load current flows until a predetermined period has elapsed, during which time the capacitor 26 charges up to the reference voltage by way of a resistor 24 and a diode 25, whereby the circuit is ready to operate immediately switch 9 closes. Voltage regulation may be effected by connecting the capacitor 26 to the terminal 7 by way of a diode 27, so that the capacitor is charged to the output voltage or to the voltage across resistor 19,whichever is the higher.
GB3978261A 1961-11-07 1961-11-07 Current regulators Expired GB988585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3978261A GB988585A (en) 1961-11-07 1961-11-07 Current regulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3978261A GB988585A (en) 1961-11-07 1961-11-07 Current regulators

Publications (1)

Publication Number Publication Date
GB988585A true GB988585A (en) 1965-04-07

Family

ID=10411477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3978261A Expired GB988585A (en) 1961-11-07 1961-11-07 Current regulators

Country Status (1)

Country Link
GB (1) GB988585A (en)

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