公开(公告)号：US3584279A

公开(公告)日：1971-06-08

申请号：US3584279D

申请日：1969-05-28

Applicant: BORG WARNER

Inventor： KRAUTHAMER STANLEY ,  LAMASTER DONALD M

IPC: G05B13/02 ,  H02J20060101 ,  H02P20060101 ,  H02P5/00 ,  H02P13/00 ,  H02P27/06 ,  H02P5/36

CPC classification number: H02P27/06 ,  H02P27/047 ,  H02P2201/03 ,  H02P2201/07

Abstract: An AC motor is energized by the output voltage of an inverter which in turn receives a DC input voltage from a DC-to-DC converter. A combined oscillator-regulator circuit includes a first potentiometer for adjusting the desired volts/hertz ratio of the inverter output voltage, and a second potentiometer for regulating motor speed. The combined oscillator-regulator receives an output signal from the inverter for comparison against the desired volts/hertz ratio signal, and provides two control signals. The first control signal regulates the operation of the DC-to-DC converter, and the second control signal regulates the frequency of the inverter output voltage.

公开(公告)号：US3482157A

公开(公告)日：1969-12-02

申请号：US3482157D

申请日：1967-11-06

Applicant: BORG WARNER

Inventor： BORDEN JAY R ,  GEIS EVERETT R ,  LAMASTER DONALD M ,  KRAUTHAMER STANLEY

IPC: H02H7/093 ,  H02P25/02 ,  H02P25/08 ,  H02P27/06 ,  H02P5/16

CPC classification number: H02P27/06 ,  H02P25/024 ,  H02P25/092 ,  H02P27/047

公开(公告)号：US3594623A

公开(公告)日：1971-07-20

申请号：US3594623D

申请日：1970-03-13

Applicant: BORG WARNER

Inventor： LAMASTER DONALD M

IPC: H02P27/06

CPC classification number: H02P27/06 ,  H02P27/047

Abstract: A motor control system including conventional components such as a volts/Hertz regulator to modify the inverter voltage amplitude, a logic stage to regulate inverter voltage frequency, and an oscillator for supplying timing pulses for the logic stage. To compensate undesired ''''cogging'''' at low operating frequencies, a square wave signal is produced and then integrated. An additional circuit is provided to incorporate additional phase shift in the signal which modulates the voltage passed from the inverter to the motor to prevent cogging. As the frequency of system operation increases, integration of the correction signal provides a modulating signal of decreasing amplitude. Thus the anticogging circuit is only effective at the lower end of the system operating range.

公开(公告)号：CA866353A

公开(公告)日：1971-03-16

申请号：CA866353D

Applicant: BORG WARNER

Inventor： KRAUTHAMER STANLEY ,  LAMASTER DONALD M ,  GEIS EVERETT R ,  BORDEN JAY R

公开(公告)号：AU1255470A

公开(公告)日：1971-09-16

申请号：AU1255470

申请日：1970-03-13

Applicant: BORG WARNER

Inventor： KRAUTHAMER STANLEY ,  LAMASTER DONALD M

IPC: G05B13/02 ,  H02J20060101 ,  H02P20060101 ,  H02P5/00 ,  H02P13/00 ,  H02P27/06 ,  H02P13/20

Abstract: 1,259,914. Control of A.C. motors; triggering thyristors. BORG-WARNER CORP. 11 March, 1970 [28 May, 1969], No. 11742/70. Headings H2F and H2J. [Also in Division G3] An A.C. motor 20 is supplied from inverter 21 which is connected to a D.C. to D.C. converter 24, a rectifier 25 being coupled between an A.C. source and the converter. The output frequency of the inverter is determined by a signal derived from an oscillator-regulator combination 40 through a logic unit 31. A unit 33 is associated with the converter 24 for regulating the amplitude of voltage applied to the inverter A protection circuit 35 responds to the inverter input or output current and provides signals to the stages 33 and 40. The regulator 42 comprises means for comparing the output voltage of the inverter with a voltage representing the desired volts/hertz ratio, a signal being transmitted from the regulator to the oscillator 41 Another control signal is passed to the unit 33. A stability circuit 46 receives a signal from the inverfer and-provides a signal to the oscillator for correcting fluctuations on the line 22 The signal between conductors 44a 44b is a function of the output voltage of the inverter, and this signal is modified by the setting of volts/hertz potentiometer 43 for application to the Base of transistor 67. A reference signal is developed by the voltage divider 85, 86; and modified by the setting of speed-adjustment potentiometer 45, to be also applied to the base of the transistor 67 An error signal is developed between condudtors 49a, 49b, and applied to the control unit 33. Transistor 68 is turned offwhen there is an over-current or short-circuit condition to interrupt the current through the transistor' 67 whereby the converter 24 is switched-off. The oscillator 41 comprises an operational amplifier 90, multivibrator 91, and transistor 92 providing pulses to regulate the frequency of the inverter. The stability circuit 46 comprises high and low pass filters 114, 117, and 115,116. This circuit provides a correction signal over conductors 48a, 48b, to offset transients in the input conductors 47a, 47b.

公开(公告)号：CA907687A

公开(公告)日：1972-08-15

申请号：CA907687D

Applicant: BORG WARNER

Inventor： LAMASTER DONALD M ,  KRAUTHAMER STANLEY