摘要:
A power converter (101) which can attain a reliable electric connection with electrodes of a power module (102) by facilitating positioning of conductors connected to the electrodes of the power module. The power converter includes the power module (102) having the plurality of electrodes in the form of plate-shaped conductors within a casing (201,202) having a lid (202), and also includes a plurality of plate-shaped conductors (105T, 106T, 107u, 107v, 107w) connected to the electrodes of the power module. Male screws (210) are embedded in ones of the electrodes of the power module provided at least on the side of the lid to be projected therefrom, the plate-shaped conductors (107u, 107v, 107w) connected to the electrodes having the male screws are formed therein with holes at locations corresponding to the male screws, the male screws being inserted in the corresponding holes, and electrically connected with the electrodes with nuts (602) fastened to the male screws.
摘要:
To provide a motor control apparatus that uses an inverter to drive an AC motor and hybrid automotive control apparatus adapted to drive an AC motor by use of an inverter while reducing torque pulsations during switching from PWM driving to rectangular-wave driving. The motor control apparatus 100 has a PWM driving mode in which to input a PWM signal to the inverter 8 and perform PWM driving of the AC motor 4, and a rectangular-wave driving mode in which to input a rectangular-wave signal to the inverter 8 and perform rectangular-wave driving of the AC motor 4. For switching from the PWM driving mode to the rectangular-wave driving mode, a driving-pulse switching block 140 performs the switching process within a maximum pulse-width range of high-level or low-level pulses developed in the PWM driving mode.
摘要:
A power converter (101) which can attain a reliable electric connection with electrodes of a power module (102) by facilitating positioning of conductors connected to the electrodes of the power module. The power converter includes the power module (102) having the plurality of electrodes in the form of plate-shaped conductors within a casing (201,202) having a lid (202), and also includes a plurality of plate-shaped conductors (105T, 106T, 107u, 107v, 107w) connected to the electrodes of the power module. Male screws (210) are embedded in ones of the electrodes of the power module provided at least on the side of the lid to be projected therefrom, the plate-shaped conductors (107u, 107v, 107w) connected to the electrodes having the male screws are formed therein with holes at locations corresponding to the male screws, the male screws being inserted in the corresponding holes, and electrically connected with the electrodes with nuts (602) fastened to the male screws.
摘要:
A semiconductor power module has insulative substrate (21) which is configured with a metal wiring pattern (22) formed on an upper first surface thereof, a metal conductor (23) formed on a rear face, opposite the first surface and an insulative layer (21) between the metal wiring pattern and the metal conductor (23). A semiconductor chip (1) is joined to the metal wiring pattern (22) formed on the first surface of the insulative substrate (21), using Pb-free solder with a low melting point. A heat sink (4) is bonded to the metal conductor (23) formed on the other surface of the insulative substrate (21), using a highly heat conductive adhesive (5) having a thermal conductivity of 2 W/(mK) or more.
摘要:
A rotating electrical machine main body (40) includes a rotor (4) having a fan, a stator (1), and housings (2, 3). An inverter unit (30) includes a case (14) and a plurality of switching semiconductor devices (15). The rotating electrical machine main body (40) and the inverter unit (30) are coupled with each other when the case (14) is connected to the housing (3). A cooling air circulated by rotation of a fan (12a) cools the inverter unit (30) before flowing into the housing. Part of the case (4)is disposed between the rotating electrical machine main body (40) and the switching semiconductor devices (15), preventing thermal radiation radiated (or irradiated) from the rotating electrical machine main body (40) from reaching the switching semiconductor devices (15).
摘要:
To provide a motor control apparatus that uses an inverter to drive an AC motor and hybrid automotive control apparatus adapted to drive an AC motor by use of an inverter while reducing torque pulsations during switching from PWM driving to rectangular-wave driving. The motor control apparatus 100 has a PWM driving mode in which to input a PWM signal to the inverter 8 and perform PWM driving of the AC motor 4, and a rectangular-wave driving mode in which to input a rectangular-wave signal to the inverter 8 and perform rectangular-wave driving of the AC motor 4. For switching from the PWM driving mode to the rectangular-wave driving mode, a driving-pulse switching block 140 performs the switching process within a maximum pulse-width range of high-level or low-level pulses developed in the PWM driving mode.
摘要:
A semiconductor power module has an insulative substrate (2) which has a metal wiring pattern (22) formed on an upper first surface of an insulating layer (21), a metal conductor (23) formed on a rear face thereof, opposite the first surface so that the insulative layer (21) is between the metal wiring pattern (22) and the metal conductor (23). A semiconductor chip (1) is joined to the metal wiring pattern (22) formed on the first surface of the insulative layer (21), using Pb-free solder with a low melting point. A heat sink (4) is bonded to the metal conductor (23) formed on the other surface of the insulative layer (21), using a highly heat conductive adhesive (5) having a thermal conductivity of 2 W/(mK) or more.