JPS5566296A - Control circuit for dental clinic motor - Google Patents

Control circuit for dental clinic motor

Info

Publication number
JPS5566296A
JPS5566296A JP13825378A JP13825378A JPS5566296A JP S5566296 A JPS5566296 A JP S5566296A JP 13825378 A JP13825378 A JP 13825378A JP 13825378 A JP13825378 A JP 13825378A JP S5566296 A JPS5566296 A JP S5566296A
Authority
JP
Japan
Prior art keywords
motor
transformer
rotation
switching means
control circuit
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
JP13825378A
Other languages
Japanese (ja)
Inventor
Junji Takada
Masayuki Namitake
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 JP13825378A priority Critical patent/JPS5566296A/en
Publication of JPS5566296A publication Critical patent/JPS5566296A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

PURPOSE: To decrease power comsumption and reduce the size and weight of a transformer by employing a switching-regulator method in controlling motors and by performing feedback control.
CONSTITUTION: Ac input power is rectified by a rectifer 21, and a square wave is formed by the on-off operation of a switching means 3 and is fed to a transformer 4. The output of the transformer is rectified and smoothed and is used to drive a motor 30. Voltage feedback is carried out by a detector 7, the switching means 3 is controlled, and the number of rotation of the motor is set. The number of rotation of the motor is sensed by the motor current and fed-back, thereby the number of rotation is controlled at a constant value. In this constituion, since the power consumption at the switching means 3 is negligible, the overall power comsumption can also be decreased, and the size and weight of the transformer can be reduced because of high frequency.
COPYRIGHT: (C)1980,JPO&Japio
JP13825378A 1978-11-09 1978-11-09 Control circuit for dental clinic motor Pending JPS5566296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13825378A JPS5566296A (en) 1978-11-09 1978-11-09 Control circuit for dental clinic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13825378A JPS5566296A (en) 1978-11-09 1978-11-09 Control circuit for dental clinic motor

Publications (1)

Publication Number Publication Date
JPS5566296A true JPS5566296A (en) 1980-05-19

Family

ID=15217626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13825378A Pending JPS5566296A (en) 1978-11-09 1978-11-09 Control circuit for dental clinic motor

Country Status (1)

Country Link
JP (1) JPS5566296A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212187A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Curtain driving unit
JPH03212195A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Motor curtain drive unit
JPH03239180A (en) * 1990-02-15 1991-10-24 Matsushita Electric Works Ltd Curtain driver
WO1996025787A1 (en) * 1995-02-17 1996-08-22 Siemens Aktiengesellschaft Drive with three-phase asynchronous motor with a slip ring rotor
JPH08251986A (en) * 1995-03-15 1996-09-27 Hanshin Electric Co Ltd Fan motor controller for burner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212187A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Curtain driving unit
JPH03212195A (en) * 1990-01-13 1991-09-17 Matsushita Electric Works Ltd Motor curtain drive unit
JPH03239180A (en) * 1990-02-15 1991-10-24 Matsushita Electric Works Ltd Curtain driver
WO1996025787A1 (en) * 1995-02-17 1996-08-22 Siemens Aktiengesellschaft Drive with three-phase asynchronous motor with a slip ring rotor
JPH08251986A (en) * 1995-03-15 1996-09-27 Hanshin Electric Co Ltd Fan motor controller for burner

Similar Documents

Publication Publication Date Title
JPS5566296A (en) Control circuit for dental clinic motor
JPS56107793A (en) Controlling method of inverter
JPS5388115A (en) Controller for alternating current motors
JPS54113039A (en) Switching regulator
JPS5395221A (en) Control circuit induction motor
JPS56101089A (en) Speed control circuit of blower
JPS5372121A (en) Torque control device of induction motor
JPS52107517A (en) Controller for commutatorless mtoro
JPS5713996A (en) Controlling method of inverter
JPS55107079A (en) Electromagnetic reciprocal pump
HU178123B (en) Electronic control equipment for controlling drive containing separatelly- or compaund excited dc machine/s/ supplied from ac mains through current transformer/s/of mains commutation,in order to improve its mains power factor,harmonicrelations and reduce psophometric distrub
JPS5437243A (en) Compensating device of reactive power
JPS52140826A (en) Method of controlling frequency converter
JPS5225559A (en) Drive method of silicon ac control element
JPS5317955A (en) Control circuit for three-phase ac voltage
JPS5713969A (en) Induction generator device
JPS54108198A (en) Plasma current keeping controlling system
JPS52106420A (en) Controlling method of motors
JPS55122680A (en) Arc welding power unit
JPS53111542A (en) Power unit for arc furnace
JPS5579699A (en) Speed controller for squirrel-cage induction motor
JPS5320251A (en) Speed control system for elevator for use at time of interruption of current supply
JPS53147956A (en) Phase controller for control rectifiers
JPS52101742A (en) Power source apparatus for electronic range
JPS529813A (en) Controlling device of ac motor