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| Patents for B60L 9 - Electric propulsion with power supply external to vehicle (3,318) |
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| 09/02/1980 | US4220911 Thyristor tap changer for electrical inductive apparatus | | 11/13/1979 | CA1066394A1 Field boost arrangement for separately excited d-c traction motors of a vehicle propulsion system | | 04/24/1979 | CA1053321A1 Apparatus for regulating magnetic flux in an ac motor | | 03/20/1979 | US4145618 Arrangement for providing auxiliary energy source for static inverter used with traction motor drive during power interruption | | 01/23/1979 | US4136305 Power converter control apparatus | | 01/09/1979 | US4134048 Control arrangementt for a wheel slip system | | 09/12/1978 | US4113045 All-electric a.c. tractor | | 05/09/1978 | US4088937 Control apparatus | | 08/16/1977 | US4042864 AC-DC Traction drive control system | | 04/26/1977 | US4020411 Static power converter controlling apparatus for reducing noise generated by phase shift control | | 04/12/1977 | US4017777 Load voltage clamping circuit for voltage turn-off chopper | | 03/15/1977 | US4012680 Field boost arrangement for separately excited D-C traction motors of a vehicle propulsion system | | 03/08/1977 | US4011489 Apparatus for regulating magnetic flux in an AC motor | | 10/05/1976 | US3984743 Regenerative braking controller for D.C. motor | | 09/07/1976 | US3978934 Amusement ride power | | 08/10/1976 | US3974435 Means for supplying a load object | | 05/18/1976 | US3957236 Method and apparatus for transitioning diverse power sources to rail vehicles | | 03/30/1976 | US3947739 Regenerative braking controller for a DC motor |
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