JPS57125416A - Parallel connection circuit of transistor - Google Patents

Parallel connection circuit of transistor

Info

Publication number
JPS57125416A
JPS57125416A JP1037681A JP1037681A JPS57125416A JP S57125416 A JPS57125416 A JP S57125416A JP 1037681 A JP1037681 A JP 1037681A JP 1037681 A JP1037681 A JP 1037681A JP S57125416 A JPS57125416 A JP S57125416A
Authority
JP
Japan
Prior art keywords
current
main control
collector
resistance
transistor
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.)
Pending
Application number
JP1037681A
Other languages
Japanese (ja)
Inventor
Akio Konemori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1037681A priority Critical patent/JPS57125416A/en
Publication of JPS57125416A publication Critical patent/JPS57125416A/en
Pending 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
    • G05F1/59—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 plural semiconductor devices as final control devices for a single load

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)

Abstract

PURPOSE:To enhance the use rate of transistors without increasing the circuit loss, by limiting respective maximum collector currents of main control transistor which are connected in parallel and by eliminating a circuit for balancing collector currents. CONSTITUTION:A resistance R6 and a transistor TR2 are a collector current detector and a current limiter for a main control TR1 respectively. A resistance R7 and a TR4 are a collector current detector and a current limiter for a main control TR3 respectively. A resistance R2 supplies the base current to the TR1, and a resistance R8 supplies the base current to the TR3. In the normal operation state, since current detectors R6 and R7 function as series resistances for balancing currents, collector currents of main control TRs are balanced in a certain degree. A maximum value of the collector current of each main control TR is limited to 1/2I0(max). I0(max) is a maximum output current of the power source.
JP1037681A 1981-01-27 1981-01-27 Parallel connection circuit of transistor Pending JPS57125416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1037681A JPS57125416A (en) 1981-01-27 1981-01-27 Parallel connection circuit of transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1037681A JPS57125416A (en) 1981-01-27 1981-01-27 Parallel connection circuit of transistor

Publications (1)

Publication Number Publication Date
JPS57125416A true JPS57125416A (en) 1982-08-04

Family

ID=11748407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1037681A Pending JPS57125416A (en) 1981-01-27 1981-01-27 Parallel connection circuit of transistor

Country Status (1)

Country Link
JP (1) JPS57125416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07121252A (en) * 1993-10-26 1995-05-12 Rohm Co Ltd Ic incorporating stabilized power circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07121252A (en) * 1993-10-26 1995-05-12 Rohm Co Ltd Ic incorporating stabilized power circuit

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