The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.

The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.

A motor control device with built-in shunt resistor and power transistor is disclosed, comprising a high-thermally conductive substrate; an electrically conductive circuit which is thermo-conductively installed on the high-thermally conductive substrate and includes a first thermal connection pad portion and a second thermal connection pad portion mutually spaced apart; a high power transistor conductively connected to the electrical conducive circuit; and a shunt resistor conductively connected to the high power transistor, respectively including a body whose thermal expansion coefficient is greater than that of the high-thermally conductive substrate, as well as a pair of welding portions extending from the body, in which the body has a prescribed width, and the width of the welding portion is greater than the prescribed width, and the body and the high-thermally conductive substrate are spaced apart such that, upon welding the welding portion to the first thermal connection pad portion and the second thermal connection pad portion, the thermal expansion stress occurring between the body and the high-thermally conductive substrate can be distributed and undertaken in the width direction.

An electric motor controller having a front face and a rear face, the front face carrying a plurality of AC output couplings and the controller carrying a converter configured to convert a received DC supply into an output AC supply for controlling an electric motor, the AC output couplings being disposed symmetrically about an axis of symmetry of the controller on the front face of the controller. Also described is an apparatus comprising: a DC series motor; and a first current supply configured to supply a first current to an armature of the DC series motor; a second current supply configured to supply a second current to a field winding of the DC series motor; and a controller configured to control the first current supply to supply the first current based on a required torque output for the motor, and to control the second current supply to supply the second current based on the first current.

An electric motor controller having a front face and a rear face, the front face carrying a plurality of AC output couplings and the controller carrying a converter configured to convert a received DC supply into an output AC supply for controlling an electric motor, the AC output couplings being disposed symmetrically about an axis of symmetry of the controller on the front face of the controller. Also described is an apparatus comprising: a DC series motor; and a first current supply configured to supply a first current to an armature of the DC series motor; a second current supply configured to supply a second current to a field winding of the DC series motor; and a controller configured to control the first current supply to supply the first current based on a required torque output for the motor, and to control the second current supply to supply the second current based on the first current.

A drive train for a motor vehicle includes an internal combustion engine, a starting device, and a vibration isolation device. The internal combustion engine has a main order of vibration and an excitation frequency predetermined by a predetermined operating principle and a predetermined number of cylinders. The starting device is for starting the internal combustion engine and has an electric machine with a torque characteristic over a speed (n). The vibration isolation device is designed for the main order of vibration of the internal combustion engine. The vibration isolation device has a resonance characteristic below an idling speed (nL) of the internal combustion engine in a resonance range occurring in a first speed range (n2). The resonance range is shifted into a second, lower speed range (n1) when the electric machine is coupled. The electric machine is arranged to supply a torque effective beyond the second, lower speed range (n1).

A drive train for a motor vehicle includes an internal combustion engine, a starting device, and a vibration isolation device. The internal combustion engine has a main order of vibration and an excitation frequency predetermined by a predetermined operating principle and a predetermined number of cylinders. The starting device is for starting the internal combustion engine and has an electric machine with a torque characteristic over a speed (n). The vibration isolation device is designed for the main order of vibration of the internal combustion engine. The vibration isolation device has a resonance characteristic below an idling speed (nL) of the internal combustion engine in a resonance range occurring in a first speed range (n2). The resonance range is shifted into a second, lower speed range (n1) when the electric machine is coupled. The electric machine is arranged to supply a torque effective beyond the second, lower speed range (n1).

A rotary electric machine includes a rotor that rotates around a rotation axis serving as a center and has a plurality of salient poles protruding in directions perpendicular to the rotation axis, and a stator that includes an annular structural body disposed radially outside the rotor and surrounding the rotor, and 6n windings provided along a circumferential direction of the structural body, a field signal for generating field magnetic flux and a drive signal for driving the rotor as a three-phase rotary electric machine being superimposed on each other to be input to each of the windings. n is a natural number equal to or larger than one.

A rotary electric machine includes a rotor that rotates around a rotation axis serving as a center and has a plurality of salient poles protruding in directions perpendicular to the rotation axis, and a stator that includes an annular structural body disposed radially outside the rotor and surrounding the rotor, and 6n windings provided along a circumferential direction of the structural body, a field signal for generating field magnetic flux and a drive signal for driving the rotor as a three-phase rotary electric machine being superimposed on each other to be input to each of the windings. n is a natural number equal to or larger than one.

A motor control device with built-in shunt resistor and power transistor is disclosed, comprising a high-thermally conductive substrate; an electrically conductive circuit which is thermo-conductively installed on the high-thermally conductive substrate and includes a first thermal connection pad portion and a second thermal connection pad portion mutually spaced apart; a high power transistor conductively connected to the electrical conducive circuit; and a shunt resistor conductively connected to the high power transistor, respectively including a body whose thermal expansion coefficient is greater than that of the high-thermally conductive substrate, as well as a pair of welding portions extending from the body, in which the body has a prescribed width, and the width of the welding portion is greater than the prescribed width, and the body and the high-thermally conductive substrate are spaced apart such that, upon welding the welding portion to the first thermal connection pad portion and the second thermal connection pad portion, the thermal expansion stress occurring between the body and the high-thermally conductive substrate can be distributed and undertaken in the width direction.