JPS52315A - Transistor-servo control circuit - Google Patents

Transistor-servo control circuit

Info

Publication number
JPS52315A
JPS52315A JP7725175A JP7725175A JPS52315A JP S52315 A JPS52315 A JP S52315A JP 7725175 A JP7725175 A JP 7725175A JP 7725175 A JP7725175 A JP 7725175A JP S52315 A JPS52315 A JP S52315A
Authority
JP
Japan
Prior art keywords
resistance
parallel
trq
control circuit
transistor
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
JP7725175A
Other languages
Japanese (ja)
Other versions
JPS5626231B2 (en
Inventor
Nobuhiko Masunaga
Yoshishi Nomura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7725175A priority Critical patent/JPS5626231B2/ja
Publication of JPS52315A publication Critical patent/JPS52315A/en
Publication of JPS5626231B2 publication Critical patent/JPS5626231B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: This control circuit connects a discharge resistance in parallel with the dummy resistance combined in parallel with a DC servo-motor M as a driving source of a numerical controller and so forth is controlled by the circuit of four power transistors (Tr) Q1∼Q4 of bridge connection. Dummy resistance R with comparatively high resistance value is connected in parallel with DC source E (so that it may not become to the load) to expend the induction voltage of Tr. Resistance Rs for discharge with comparatively low resistance value is connected in parallel with the resistance RD through switchin, TrQ5 thus resulting in the on of TrQ5 by the output of voltage detector De when the abnormal voltage generated in case of the breaking of motor M exceeds the specified value and allowing the protection of TrQ1 - Q5 by controlling the abnormal voltage.
COPYRIGHT: (C)1977,JPO&Japio
JP7725175A 1975-06-23 1975-06-23 Expired JPS5626231B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7725175A JPS5626231B2 (en) 1975-06-23 1975-06-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7725175A JPS5626231B2 (en) 1975-06-23 1975-06-23

Publications (2)

Publication Number Publication Date
JPS52315A true JPS52315A (en) 1977-01-05
JPS5626231B2 JPS5626231B2 (en) 1981-06-17

Family

ID=13628627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7725175A Expired JPS5626231B2 (en) 1975-06-23 1975-06-23

Country Status (1)

Country Link
JP (1) JPS5626231B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471139A (en) * 1977-11-17 1979-06-07 Matsushita Electronics Corp Method of coating inner surface of pipe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190325A (en) * 1984-03-12 1985-09-27 Toray Ind Inc Screw cooler for extruder
JPH0538911Y2 (en) * 1985-09-09 1993-10-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471139A (en) * 1977-11-17 1979-06-07 Matsushita Electronics Corp Method of coating inner surface of pipe

Also Published As

Publication number Publication date
JPS5626231B2 (en) 1981-06-17

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