Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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08/27/1985 | US4538096 Speed control circuit for a DC motor |
08/21/1985 | EP0152339A1 Electric drive means for low tension of a rotating mass of high inertia and motor being part of such means |
08/13/1985 | CA1191928A1 Dc motor control circuit |
08/06/1985 | CA1191583A1 Motor control chopper apparatus phase angle limiting |
08/06/1985 | CA1191542A1 Electrical machine with switches to change number of phases |
08/06/1985 | CA1191386A1 Printer control system with error count averaging |
07/30/1985 | CA1191237A1 Dual voltage motor vehicle electrical system |
07/23/1985 | US4531081 In an autopilot system for aircraft |
07/18/1985 | WO1985003061A1 Reel tension controlling method and apparatus |
07/17/1985 | EP0148467A1 Process and electronic device for the regulation of the current of an electric motor fed by a DC source with a fixed voltage |
07/17/1985 | EP0148189A1 Mosfet "h" switch circuit for a dc motor |
07/10/1985 | EP0147686A2 Speed control circuit for a direct current motor |
07/09/1985 | US4528487 Electric car control system |
07/03/1985 | EP0147280A1 Supply method and apparatus for a load, especially a direct-current motor for bi-current railway locomotive |
07/02/1985 | US4527104 Speed control apparatus for d.c. motor |
07/02/1985 | US4527103 Four state DC motor controller |
07/02/1985 | CA1189901A1 Switching by means of rectifiers in electrical machines |
06/25/1985 | US4525658 Servomotor drive system |
06/25/1985 | US4525049 Motor driving device of a camera |
06/20/1985 | WO1985002727A1 A programmed microprocessor for a speed control system for a d.c. motor |
06/18/1985 | US4524309 Safety control device of commutator motors |
06/11/1985 | US4523134 Control system for DC motors |
05/28/1985 | US4520279 Series transistor chopper |
05/23/1985 | WO1985002305A1 Series transistor chopper |
05/22/1985 | EP0141828A1 Control circuit for a motor |
05/21/1985 | US4518901 Motor control apparatus |
05/14/1985 | US4517502 Load monitoring circuit for electric motors |
05/07/1985 | US4516059 Motor control chopper apparatus phase angle limiting |
05/07/1985 | US4516034 Circuit for operating a displaceable component in a motor vehicle, in particular a motor vehicle window |
05/02/1985 | EP0029846B1 Digital velocity servo |
04/30/1985 | US4514670 Electric positioning motor control system, particularly automatic vehicle antenna extension system |
04/30/1985 | US4514668 D.C. Motor driving circuit |
04/30/1985 | US4514666 Pulse width modulation d.c. servo motor driving circuit |
04/30/1985 | CA1186368A1 Method of controlling the speed of a d.c. motor and device for carrying out the method |
04/24/1985 | EP0138157A1 Static leonard apparatus |
04/23/1985 | US4513231 Control circuit of pulse width modulation inverter |
04/17/1985 | EP0137249A2 Compensated ramp generating circuit for controlling SCR firing |
04/17/1985 | EP0137248A2 Method and circuit for DC motor field regulation with speed feedback |
04/16/1985 | US4511833 Stepping motor driving circuit |
04/16/1985 | US4511831 Speed control of a D.C. electric motor |
04/16/1985 | US4511829 Direct current control in inductive loads |
04/16/1985 | US4511825 Electric wheelchair with improved control circuit |
04/16/1985 | CA1185717A1 Elevator system |
04/10/1985 | EP0027815B1 Traction-vehicle-propulsion-system having means for effecting electrical braking |
04/09/1985 | US4510425 Control device for pump apparatus for vehicular use |
04/09/1985 | US4510423 Motor apparatus |
04/03/1985 | EP0135874A2 Control system for AC electric car |
03/26/1985 | US4507771 Motor drive apparatus |
03/26/1985 | CA1184627A1 Valve actuators |
03/19/1985 | US4506200 Method and apparatus for operating a d.c. motor |
03/19/1985 | CA1184243A1 Electric motor speed controller and method |
03/12/1985 | US4504881 Protective circuit for an electric motor |
02/26/1985 | CA1183200A1 Vehicle propulsion motor control apparatus |
02/26/1985 | CA1183199A1 Propulsion motor control apparatus |
02/19/1985 | US4500818 Dual motor proportioning control |
02/12/1985 | US4499413 Method and apparatus for the control of synchronous motors |
02/05/1985 | US4498035 Control circuit for linearly controlling the speed and direction of an AC powered DC motor in accordance with the magnitude and polarity of a DC reference signal |
01/31/1985 | WO1985000477A1 Controlled electric current supply unit |
01/29/1985 | US4496888 Control system for a d.c. motor |
01/29/1985 | US4496886 Three state driver for inductive loads |
01/29/1985 | CA1181798A1 Control circuit for operating a direct current motor in the traction and braking modes |
01/22/1985 | US4495401 Torch for gas-shield arc welding in deep narrow groove |
01/22/1985 | CA1181480A1 Electric motor chopper control apparatus and method |
01/17/1985 | WO1985000147A1 Apparatus for controlling forklift |
01/16/1985 | EP0131489A1 Control device for a motor to open a pane of an automotive vehicle, particularly for an electric window opener |
01/15/1985 | US4494181 Circuit arrangement for determining the polarity and magnitude of the load current in a reversible d-c controller or chopper |
01/15/1985 | US4494059 Structure for and method of surface conditioning sensing and indicating and motor speed control |
01/15/1985 | US4494057 Speed control system for small medical motors |
01/15/1985 | US4494050 System for supression of underdamped oscillations in ac power drawn by synchronous motors driving Ward-Leonard generators |
01/08/1985 | US4493015 Circuit arrangement for determining the load current in a reversible d-c controller or chopper |
01/08/1985 | US4492912 Dual voltage motor vehicle electrical system |
01/08/1985 | US4492905 Intermittent drive arrangement |
01/01/1985 | US4491904 Chopper control apparatus |
12/27/1984 | EP0129319A2 Multiple-range speed control system for a compound motor |
12/27/1984 | CA1180048A Motor control system |
12/25/1984 | US4490657 Automatic torque taper circuit |
12/25/1984 | US4490655 Bi-directional driver system for electrical load |
12/18/1984 | US4489261 Method and means for feeding electric energy to a portable power tool |
12/18/1984 | US4489258 Propulsion system for vehicles with a d-c machine |
12/18/1984 | US4489257 Driving and braking system for electric motors |
12/12/1984 | EP0128075A1 Control circuit for an opening panel, particularly for a window slider |
12/12/1984 | EP0127896A2 Digitally controlled rectifying system for driving a motor |
12/11/1984 | US4488096 Speed control for a rotary machine |
12/11/1984 | US4488094 Linear integrated circuit for driving a d.c. motor with radio control |
12/05/1984 | EP0126988A1 DC motor speed control circuit |
12/04/1984 | US4486692 DC Motor control circuit for drop-out of stopping pulses in recorder |
11/27/1984 | CA1178656A1 Electronic speed regulator for a d.c. motor |
11/22/1984 | WO1984004635A1 Mosfet "h" switch circuit for a dc motor |
11/21/1984 | EP0125512A2 An anti-log power amplifier |
11/20/1984 | US4484117 Microprocessor-based control apparatus for a direct current machine drive system |
11/16/1984 | EP0113341A4 Windshield wiper control system. |
11/14/1984 | EP0125100A1 Motor control |
11/14/1984 | EP0124956A1 Power control for motor vehicle window |
11/13/1984 | US4482850 Control circuit for DC capstan motor |
11/13/1984 | US4482848 Controllable power source |
11/13/1984 | CA1177878A1 Shunt field control apparatus and method |
11/07/1984 | EP0123728A1 Circuit for monitoring electric motors |
11/06/1984 | US4481452 Control circuit for electromagnetic devices |
10/31/1984 | EP0123085A2 Electronically switched power supply with transformer choke |
10/30/1984 | US4480216 Motor driving circuits |