JPS5520598A - Output control system for constant current device - Google Patents

Output control system for constant current device

Info

Publication number
JPS5520598A
JPS5520598A JP8461479A JP8461479A JPS5520598A JP S5520598 A JPS5520598 A JP S5520598A JP 8461479 A JP8461479 A JP 8461479A JP 8461479 A JP8461479 A JP 8461479A JP S5520598 A JPS5520598 A JP S5520598A
Authority
JP
Japan
Prior art keywords
output
resistance
amplifier
output current
constitution
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
JP8461479A
Other languages
Japanese (ja)
Inventor
Juji Toyooka
Hiromichi Miki
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.)
Japan Storage Battery Co Ltd
Original Assignee
Japan Storage Battery Co 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 Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to JP8461479A priority Critical patent/JPS5520598A/en
Publication of JPS5520598A publication Critical patent/JPS5520598A/en
Pending legal-status Critical Current

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  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE: To simplify the constitution of the main circuit by using the feedback resistance connected to the operational amplifier as the output current controller and thus omitting the switch circuit which is required in case a steady control is given to the output current in a wide range.
CONSTITUTION: The DC load current after undergoing the three-phase full wave rectification is detected by low-millivolt shunt 20 and then amplified by 1st-step operational amplifier 21 as well as integrated by feedback resistance 30 and capacitor 40. This output is supplied to main operational amplifier 22. Amplifier 22 amplifies the voltage supplied up to a proper gain-fold level of the closed loop which is decided by resistance 31 and feedback resistance 32. Furthermore, the output is applied to the base of booster transistor 23, and the output of 23 is fed back to the input side of amplifier 22 via resistance 32 to secure a constant voltage level at all times. This output is also applied to SCR ignition pulse generator 26 via choke coil 38, and the filter of capacitor 39. In such constitution of the circuit, resistance 32 of amplifier 22 is used as the output current controller in order to secure variation of the output current over a wide range.
COPYRIGHT: (C)1980,JPO&Japio
JP8461479A 1979-07-03 1979-07-03 Output control system for constant current device Pending JPS5520598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8461479A JPS5520598A (en) 1979-07-03 1979-07-03 Output control system for constant current device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8461479A JPS5520598A (en) 1979-07-03 1979-07-03 Output control system for constant current device

Publications (1)

Publication Number Publication Date
JPS5520598A true JPS5520598A (en) 1980-02-14

Family

ID=13835564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8461479A Pending JPS5520598A (en) 1979-07-03 1979-07-03 Output control system for constant current device

Country Status (1)

Country Link
JP (1) JPS5520598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968399U (en) * 1982-10-27 1984-05-09 三洋電機株式会社 Speech start control circuit for speech synthesizer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854947A (en) * 1971-11-06 1973-08-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854947A (en) * 1971-11-06 1973-08-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968399U (en) * 1982-10-27 1984-05-09 三洋電機株式会社 Speech start control circuit for speech synthesizer

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