JPS55124821A - Drive system - Google Patents

Drive system

Info

Publication number
JPS55124821A
JPS55124821A JP3350879A JP3350879A JPS55124821A JP S55124821 A JPS55124821 A JP S55124821A JP 3350879 A JP3350879 A JP 3350879A JP 3350879 A JP3350879 A JP 3350879A JP S55124821 A JPS55124821 A JP S55124821A
Authority
JP
Japan
Prior art keywords
load
drive
circuit
control circuit
detection
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
JP3350879A
Other languages
Japanese (ja)
Inventor
Fumio Asano
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3350879A priority Critical patent/JPS55124821A/en
Publication of JPS55124821A publication Critical patent/JPS55124821A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To establish the power supply unit for unit drive which is programmable and less in power loss, by commonly using the highly efficient switching system and responsive dropper system.
CONSTITUTION: The drive means of the switching system consisting of the power switch element 1, control circuit 2 and filter 3, determines the applied voltage E1 controlled with the reference voltage Vref and the detection signal Vd and drives the load 5 via the drive circuit 4. The reference voltage Vref and the detection signal Vd are processed for operation and outputted with the control circuit 7 by means of the applied voltage E1, voltage and current conditions over the load 5, output signal of the detection circuit 6 or external signal R, based on the drive condition of the load 5. The detection circuit 6 and the control circuit 7 form the control means of dropper system and responds to the conditional change of the load 5 quickly.
COPYRIGHT: (C)1980,JPO&Japio
JP3350879A 1979-03-20 1979-03-20 Drive system Pending JPS55124821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3350879A JPS55124821A (en) 1979-03-20 1979-03-20 Drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3350879A JPS55124821A (en) 1979-03-20 1979-03-20 Drive system

Publications (1)

Publication Number Publication Date
JPS55124821A true JPS55124821A (en) 1980-09-26

Family

ID=12388478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3350879A Pending JPS55124821A (en) 1979-03-20 1979-03-20 Drive system

Country Status (1)

Country Link
JP (1) JPS55124821A (en)

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