JPS5731014A - Constant-voltage circuit - Google Patents

Constant-voltage circuit

Info

Publication number
JPS5731014A
JPS5731014A JP10571180A JP10571180A JPS5731014A JP S5731014 A JPS5731014 A JP S5731014A JP 10571180 A JP10571180 A JP 10571180A JP 10571180 A JP10571180 A JP 10571180A JP S5731014 A JPS5731014 A JP S5731014A
Authority
JP
Japan
Prior art keywords
voltage
thyristor
point
current
controlling 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
JP10571180A
Other languages
Japanese (ja)
Inventor
Yasuyuki Watanabe
Ryoichi Miyake
Kazuyuki Ogata
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP10571180A priority Critical patent/JPS5731014A/en
Publication of JPS5731014A publication Critical patent/JPS5731014A/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

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 greatly reduce the power consumption of a controlling transistor, by providing a self-holding type switching circuit between the base of the controlling transistor inserted in series into one line, and the other line. CONSTITUTION:When voltage of a point (b) of the output side of a rectifying circuit 2 rises along a half-wave rectifier waveform, a controlling transistor TR31 becomes conducting. Therefore, a capacitor 41 is charged, and voltage of a point C rises. When voltage of this point C exceeds threshold voltage of a constant-voltage diode 33, a current starts to flow to the gate of a thyristor through a resistance 342. When voltage of the point C further rises, the thyristor 341 is turned on, a current which has been flowing through a resistance 32 flows into the thyristor 341, the thyristor 341 self-holds the on state, and also the TR31 is cut off. This state is continued until an anode current of the thyristor 341 becomes below a holding current. Subsequently, while the TR31 is off, to a load circuit 42 is supplied electric power by charge stored in the capacitor 41.
JP10571180A 1980-07-31 1980-07-31 Constant-voltage circuit Pending JPS5731014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10571180A JPS5731014A (en) 1980-07-31 1980-07-31 Constant-voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10571180A JPS5731014A (en) 1980-07-31 1980-07-31 Constant-voltage circuit

Publications (1)

Publication Number Publication Date
JPS5731014A true JPS5731014A (en) 1982-02-19

Family

ID=14414916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10571180A Pending JPS5731014A (en) 1980-07-31 1980-07-31 Constant-voltage circuit

Country Status (1)

Country Link
JP (1) JPS5731014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675798A (en) * 1985-07-15 1987-06-23 Harris Corporation Direct coupled switching power supply with GTO SCR switching element
CN100392550C (en) * 2003-01-09 2008-06-04 三星电子株式会社 Power-supply device and its control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110442A (en) * 1976-03-11 1977-09-16 Sanyo Electric Co Charging device for storage battery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110442A (en) * 1976-03-11 1977-09-16 Sanyo Electric Co Charging device for storage battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675798A (en) * 1985-07-15 1987-06-23 Harris Corporation Direct coupled switching power supply with GTO SCR switching element
CN100392550C (en) * 2003-01-09 2008-06-04 三星电子株式会社 Power-supply device and its control method

Similar Documents

Publication Publication Date Title
JPS5731014A (en) Constant-voltage circuit
JPS57211421A (en) Wire cut discharge machining power source equipment
JPS5762630A (en) Control circuit device
JPS5799032A (en) Alternating current two-wire type contactless switch
GB1485786A (en) Device for adjusting the power supplied to a load from a rectified alternating voltage source by suppressing half cycles
JPS56159716A (en) Direct-current electric power device
JPS56132817A (en) Driving circuit of semiconductor element
JPS5790722A (en) Dc power supply circuit
RU2081469C1 (en) Time relay
SU1267390A1 (en) D.c.voltage stabilizer
JPS56169429A (en) Alternating current contactless switch
JPS54105457A (en) Alternating current switching contactless switch of two-wire system
JPS649426U (en)
JPS57109018A (en) Switching regulator
JPS56123025A (en) Power supply circuit
JPS56132019A (en) High-voltage pulse circuit
JPS5623029A (en) Gate circuit of gate turn-off thyristor
JPS56129571A (en) Switching regulator
JPS5468954A (en) Two-line ac contactless switch
JPS56115175A (en) Switching circuit
JPS57191720A (en) Rush current preventing circuit for power supply circuit
JPS55100064A (en) Dc-dc converter
JPS5480539A (en) Ac voltage controller
JPS57203331A (en) Gate controlling circuit of gate turn-off thyristor
JPS5636227A (en) Alternating current two-wire detection switch