摘要:
A level shift transistor of a first conductivity type configured to level shift a signal from a primary side circuit to a secondary side circuit between the primary side circuit having a primary side reference potential as reference and the secondary side circuit having a secondary side reference potential independent from the primary side reference potential as reference, a diode connected in a forward direction between a first main electrode of the level shift transistor and the secondary side circuit, a capacitor connected in parallel to the diode, and an inverter configured to invert the signal are provided. A control electrode of the level shift transistor is connected to a primary side power supply of the primary side circuit, and a second main electrode thereof is connected to an output of the inverter. The inverter operates between the primary side reference potential and the primary side power supply.
摘要:
A semiconductor device according to the present invention includes a relay substrate provided on a plurality of semiconductor chips. The relay substrate includes an insulating plate in which a through hole is formed, a lower conductor provided on a lower surface of the insulating plate and having a first lower conductor and a second lower conductor, an upper conductor provided on an upper surface of the insulating plate, a connection part provided in the through hole and connecting the second lower conductor and the upper conductor together, and a protruding part which is a part of one of the first lower conductor and the upper conductor and protrudes outward from the insulating plate, the protruding part is connected to a first external electrode, and another of the first lower conductor and the upper conductor is connected to a second external electrode and is positioned inside the insulating plate.
摘要:
A relay substrate in which a circuit pattern and an external electrode are integrated on a insulating plate is used in the semiconductor device. Such configuration makes it possible to reduce a resistance in a current path while preventing the problems occurring when the external electrode is soldered on the semiconductor chip.
摘要:
A semiconductor device includes: a voltage-dividing resistor circuit including first and second resistors connected in series between a power supply potential and a reference potential and outputting a potential at a point of connection between the first and second resistors; a transient response detection circuit including a third resistor having a first end connected to the power supply potential and a capacitor connected between a second end of the third resistor and the reference potential, and outputting a potential at a point of connection between the third resistor and the capacitor; an AND circuit ANDing an output signal of the voltage-dividing resistor circuit and an output signal of the transient response detection circuit; and an output circuit, wherein switching of the output circuit is controlled by an output signal of the AND circuit.
摘要:
A bootstrap compensation circuit includes: a plurality of resistors series-connected between a floating potential corresponding to a high-voltage-side potential and a reference potential; a second capacitor that has one end connected to a divided potential extraction point and has the other end connected to the reference potential, the divided potential extraction point located between the plurality of resistors; and an output circuit which supplies current to a first capacitor, according to a potential of the divided potential extraction point.
摘要:
An image processing device, an image processing system, and an image processing method according to the present invention include a mask determining unit that determines a vertical relation in an overlapping area when a video window and a still image window overlap. As a result of a determination, if it is decided that the still image window overlaps as an upper window, the mask process is performed, and if it is decided that the still image window overlaps as a lower window, the mask process is not performed, thereby allowing an appropriate composite image to be obtained regardless of the vertical relation in the overlapping area of the video window and the still image window.
摘要:
A driving circuit includes first and second driving units connected in parallel to each other, wherein both the first and second driving units start to supply a gate current to a gate of a switching device in a turn-on operation of the switching device, when a gate voltage of the switching device increases and has reached a threshold voltage of the switching device, the first driving unit continues to supply the gate current, and the second driving unit stops supply of the gate current before the gate voltage has reached the threshold voltage.
摘要:
An upper conductor portion having a thickness A larger than a thickness B of a lower conductor portion, the upper conductor portion including a circuit pattern on which semiconductor chips are disposed and an outer peripheral pattern provided on an outer peripheral side of the circuit pattern at a certain gap, the outer peripheral pattern of the upper conductor portion, an outer peripheral portion of an insulating layer, and an outer peripheral portion of the lower conductor portion are fixed to a concave portion formed in the inner peripheral portion of the peripheral wall portion of a case, a collar portion projecting outward from the outer peripheral portion of the peripheral wall portion of the case is formed, and the attachment holes, through which the radiation fins are attachable, are formed in the collar portion.
摘要:
The object of the present invention is to provide a semiconductor device capable of reducing the influence of gas generated from a resin to which a fire retardant is not added, and a power conversion device including the semiconductor device. The semiconductor device according to the present invention includes: a semiconductor element disposed on an insulating substrate; a case disposed around an outer edge of the insulating substrate, the case including an opening facing the semiconductor element; a sealing resin sealing the semiconductor element in the case; and a lid closing the opening of the case, wherein the sealing resin does not contain a fire retardant, the lid contains the fire retardant, and a space is provided between the sealing resin and the lid.
摘要:
An image generating/transmitting device divides an image which is to be displayed on a display screen formed of a plurality of monitor devices into a plurality of divided images, generates divided image definition information that defines a display region of each divided image on the display screen by using screen coordinates which are set on the display screen, and transmits the divided image definition information to an image receiving/reproducing device. The image receiving/reproducing device identifies, by using the screen coordinates, a connected monitor region on the display screen occupied by a connected monitor device which is the monitor device to which the image receiving/reproducing device is connected, receives the divided image definition information, extracts a receiving target divided image whose display region defined by the divided image definition information overlaps at least partially with the connected monitor region, extracts a reproduction target range overlapping with the connected monitor region in the receiving target divided image, receives the receiving target divided image, reproduces the reproduction target range in the receiving target divided image, and outputs the reproduction result of the reproduction target range to the connected monitor device.