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JPS6419967A - Switching control type power device - Google Patents

Switching control type power device

Info

Publication number
JPS6419967A
JPS6419967A JP17331587A JP17331587A JPS6419967A JP S6419967 A JPS6419967 A JP S6419967A JP 17331587 A JP17331587 A JP 17331587A JP 17331587 A JP17331587 A JP 17331587A JP S6419967 A JPS6419967 A JP S6419967A
Authority
JP
Japan
Prior art keywords
section
load
control
constant
currents
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
JP17331587A
Other languages
Japanese (ja)
Inventor
Hiroji Sasaki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP17331587A priority Critical patent/JPS6419967A/en
Publication of JPS6419967A publication Critical patent/JPS6419967A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To adjust a load-current set value finely and accurately by varying the magnitude of load currents under the state of constant-current operation by a control signal transmitted from the outside. CONSTITUTION:A switching control type power device is composed of a blocking oscillation section 1, an output extracting section 2, a constant voltage control section 3, a constant current control section 4 and a chopper section 5 for preparing negative voltage. The constant current control section 4 has a first circuit section 4a converting a load-current value setting signal transmitted over a terminal T3 into negative control voltage, a second circuit section 4b comparing the control voltage with the detecting output voltage of load currents, and a second control transistor Q3 controlling the quantity of shunt of the positive feedback currents of a switching transistor Q1 by a comparison output from the second circuit section 4b. A primary side transistor Q1 for a converter transformer CT is controlled and load currents are turned into constant currents, and the constant currents are regulated in response to the load-curent value setting signal.
JP17331587A 1987-07-10 1987-07-10 Switching control type power device Pending JPS6419967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17331587A JPS6419967A (en) 1987-07-10 1987-07-10 Switching control type power device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17331587A JPS6419967A (en) 1987-07-10 1987-07-10 Switching control type power device

Publications (1)

Publication Number Publication Date
JPS6419967A true JPS6419967A (en) 1989-01-24

Family

ID=15958162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17331587A Pending JPS6419967A (en) 1987-07-10 1987-07-10 Switching control type power device

Country Status (1)

Country Link
JP (1) JPS6419967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH035021A (en) * 1989-06-01 1991-01-10 Kurimoto Ltd Method for bending steel sheet spirally by bending rolls
JPH035020A (en) * 1989-06-01 1991-01-10 Kurimoto Ltd Method for u-bending steel sheet by bending rolls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH035021A (en) * 1989-06-01 1991-01-10 Kurimoto Ltd Method for bending steel sheet spirally by bending rolls
JPH035020A (en) * 1989-06-01 1991-01-10 Kurimoto Ltd Method for u-bending steel sheet by bending rolls

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