JPS554612A - Constant-current supply unit - Google Patents

Constant-current supply unit

Info

Publication number
JPS554612A
JPS554612A JP7653378A JP7653378A JPS554612A JP S554612 A JPS554612 A JP S554612A JP 7653378 A JP7653378 A JP 7653378A JP 7653378 A JP7653378 A JP 7653378A JP S554612 A JPS554612 A JP S554612A
Authority
JP
Japan
Prior art keywords
terminals
constant
voltage
resistance element
resistance
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.)
Granted
Application number
JP7653378A
Other languages
Japanese (ja)
Other versions
JPS633324B2 (en
Inventor
Takeo Murakoshi
Tsuneo Shimazaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7653378A priority Critical patent/JPS554612A/en
Publication of JPS554612A publication Critical patent/JPS554612A/en
Publication of JPS633324B2 publication Critical patent/JPS633324B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To attain safe supply of a stable load current by absorbing variation in power voltage or in load applied voltage, even if occurring, by variation in resistance between input and output terminals of a variable resistance element with three terminals.
CONSTITUTION: This unit is provided with constant-voltage regulator 2 which has input terminal IN, output terminal OUT and control terminal ADJ and serves as a constant-current regulator with a resistance element connected between terminals OUT and ADJ, and variable resistance element 1 which has input terminal C, output terminal E and control terminal B and whose resistance value between terminals C and E varies a voltage between terminals E and B. Further, this unit has resistance R1 connected between terminals C and B with terminals E and IN connected together, constant-voltage element D1 connected between terminals B and OUT, and load-current setting resistance element 3 connected between IN and OUT. Consequently, a stable load current can be supplied with safety.
COPYRIGHT: (C)1980,JPO&Japio
JP7653378A 1978-06-26 1978-06-26 Constant-current supply unit Granted JPS554612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7653378A JPS554612A (en) 1978-06-26 1978-06-26 Constant-current supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7653378A JPS554612A (en) 1978-06-26 1978-06-26 Constant-current supply unit

Publications (2)

Publication Number Publication Date
JPS554612A true JPS554612A (en) 1980-01-14
JPS633324B2 JPS633324B2 (en) 1988-01-22

Family

ID=13607906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7653378A Granted JPS554612A (en) 1978-06-26 1978-06-26 Constant-current supply unit

Country Status (1)

Country Link
JP (1) JPS554612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078115A (en) * 1996-11-07 2000-06-20 Fanuc Ltd Air-cooled motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5150257U (en) * 1974-10-12 1976-04-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5150257U (en) * 1974-10-12 1976-04-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078115A (en) * 1996-11-07 2000-06-20 Fanuc Ltd Air-cooled motor

Also Published As

Publication number Publication date
JPS633324B2 (en) 1988-01-22

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