JPS5694410A - Constant-current switching circuit - Google Patents

Constant-current switching circuit

Info

Publication number
JPS5694410A
JPS5694410A JP17086079A JP17086079A JPS5694410A JP S5694410 A JPS5694410 A JP S5694410A JP 17086079 A JP17086079 A JP 17086079A JP 17086079 A JP17086079 A JP 17086079A JP S5694410 A JPS5694410 A JP S5694410A
Authority
JP
Japan
Prior art keywords
load
phase
electric power
output
oscillator
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
JP17086079A
Other languages
Japanese (ja)
Inventor
Isao Takahashi
Eiji Hanada
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.)
Fujitsu Telecom Networks Ltd
Original Assignee
Fujitsu Telecom Networks 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 Fujitsu Telecom Networks Ltd filed Critical Fujitsu Telecom Networks Ltd
Priority to JP17086079A priority Critical patent/JPS5694410A/en
Publication of JPS5694410A publication Critical patent/JPS5694410A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce surplus electric power to improve the conversion efficiency, by comparing phase information corresponding to current change of the load with the reference phase and by driving the switch part, which supplies electric power to the load, by the comparison output.
CONSTITUTION: DC current fluctuation due to fluctuation of load 7 is detected by level converter 5 and is transferred to phase control oscillator 6, and the output of oscillator 6 is given to phase comparator 2. Comparator 2 compares the output of reference frequency oscillator 1 and the output of oscillator 6 with each other in phase and outputs DC fluctuation components of load 7 as the phase difference. After subjected to level conversion in level converter 3, the phase difference is rectified to a DC voltage by LPF4 and is supplied to load 7. Consequently, the current supplied to load 7 is made constant. By this system, electric power is supplied to the load at 100%, and surplus electric power becomes zero.
COPYRIGHT: (C)1981,JPO&Japio
JP17086079A 1979-12-27 1979-12-27 Constant-current switching circuit Pending JPS5694410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17086079A JPS5694410A (en) 1979-12-27 1979-12-27 Constant-current switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17086079A JPS5694410A (en) 1979-12-27 1979-12-27 Constant-current switching circuit

Publications (1)

Publication Number Publication Date
JPS5694410A true JPS5694410A (en) 1981-07-30

Family

ID=15912649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17086079A Pending JPS5694410A (en) 1979-12-27 1979-12-27 Constant-current switching circuit

Country Status (1)

Country Link
JP (1) JPS5694410A (en)

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