Abstract: An isolated power supply apparatus includes transformers, input sides of which are connected with a DC power source and output sides of which are connected with power supply targets corresponding to the transformers. At least two of the transformers have respective feedback windings. The apparatus further includes: a control switch configured to allow supply of electric power from the DC power source to the input sides of the transformers by being turned on and interrupt the supply of electric power from the DC power source to the input sides of the transformers by being turned off; an acquisition unit configured to acquire a control value based on voltages generated in the feedback windings; and a control unit configured to turn on and off the control switch so as to feedback-control the control value to a target value and thereby control voltages on the output sides of the transformers.

Abstract: With a resistor, a variable resistor, and a method for manufacturing a resistor according to the present invention, it is possible to eliminate lead and prevent deterioration of sliding characteristics. A resistor according to the present invention is disposed on an insulating layer. The resistor has: a more-conductive-material-containing layer containing more conductive materials than insulating materials; and a more-insulating-material-containing layer that does not contain lead and that contains more insulating materials than conductive materials. The more-conductive-material-containing layer has a polished surface. For example, the film thickness of the more-conductive-material-containing layer in a low-resistance region having a resistance value smaller than or equal to a prescribed value is larger than the film thickness of the more-insulating-material-containing layer in a high-resistance region having a resistance value larger than the prescribed value.

Abstract: A semiconductor device includes a first semiconductor element, a first signal terminal group, and a second signal terminal group disposed at an interval from the first signal terminal group. The first semiconductor element includes a control signal electrode to which a control signal for the first semiconductor element is input, and a temperature signal electrode that outputs a signal corresponding to temperature of the first semiconductor element. The temperature signal electrode is connected with a temperature signal terminal included in the first signal terminal group, and the control signal electrode is connected with a first control signal terminal included in the second signal terminal group.

Abstract: A semiconductor device may be provided with a first semiconductor element including a plurality of signal electrodes, a second semiconductor element including a plurality of signal electrodes, an encapsulant encapsulating the first semiconductor element and the second semiconductor element, and a plurality of signal terminals protruding from the encapsulant. The plurality of signal terminals may include a first signal terminal, a second signal terminal and a common signal terminal. The first signal terminal may be connected with one of the signal electrodes of the first semiconductor element within the encapsulant. The second signal terminal may be connected with one of the signal electrodes of the second semiconductor element within the encapsulant. The common signal terminal may be, within the encapsulant, connected with another one of the signal electrodes of the first semiconductor element and another one of the signal electrodes of the second semiconductor element.

Abstract: A semiconductor device may be provided with a first semiconductor element including a plurality of signal electrodes, a second semiconductor element including a plurality of signal electrodes, an encapsulant encapsulating the first semiconductor element and the second semiconductor element, and a plurality of signal terminals protruding from the encapsulant. The plurality of signal terminals may include a first signal terminal, a second signal terminal and a common signal terminal. The first signal terminal may be connected with one of the signal electrodes of the first semiconductor element within the encapsulant. The second signal terminal may be connected with one of the signal electrodes of the second semiconductor element within the encapsulant. The common signal terminal may be, within the encapsulant, connected with another one of the signal electrodes of the first semiconductor element and another one of the signal electrodes of the second semiconductor element.

Abstract: A semiconductor device includes a first semiconductor element, a first signal terminal group, and a second signal terminal group disposed at an interval from the first signal terminal group. The first semiconductor element includes a control signal electrode to which a control signal for the first semiconductor element is input, and a temperature signal electrode that outputs a signal corresponding to temperature of the first semiconductor element. The temperature signal electrode is connected with a temperature signal terminal included in the first signal terminal group, and the control signal electrode is connected with a first control signal terminal included in the second signal terminal group.

Abstract: Provided is a connector having excellent abrasion resistance. The invention applies to a connector including a terminal portion electrically connecting two objects to be connected and a connector housing portion in which the terminal portion is accommodated. The connector housing portion has a first housing in which a fixing portion to which a fixed portion formed in the terminal portion is to be fixed is formed and a second housing that engages with a main body-side housing fixed to one of the objects to be connected in a state in which the first housing is accommodated in the second housing.

Abstract: An electrical connector is disclosed having a terminal housing, a female terminal, and a holding protrusion. The female terminal is positioned in the terminal housing and has a terminal body into which a complementary male terminal may be inserted and extracted. The holding protrusion projects from the terminal body in a direction orthogonal to inserting and extracting directions, and is press-fitted in the terminal receiving terminal housing.

Abstract: Provided is an electrical connector mounted on a circuit board and including: a first connection terminal whose one end is electrically connected to the circuit board; a housing for supporting the first connection terminal while having the other end of the first connection terminal surrounded by lateral walls and disposed inside the housing, and having an opening toward an upper part opposite to a bottom part where the housing makes contact with the circuit board; a second connection terminal whose one end is electrically connected to the other end of the first connection terminal and whose other end is electrically connected to an external connection terminal inserted in the electrical connector; a lid for engaging the opening of the housing and covering the other end of the first connection terminal and the second connection terminal. The lid has a penetration hole configured to ventilate the housing.

Abstract: Provided is an electrical connector mounted on a circuit board and including: a first connection terminal whose one end is electrically connected to the circuit board; a housing for supporting the first connection terminal while having the other end of the first connection terminal surrounded by lateral walls and disposed inside the housing, and having an opening toward an upper part opposite to a bottom part where the housing makes contact with the circuit board; a second connection terminal whose one end is electrically connected to the other end of the first connection terminal and whose other end is electrically connected to an external connection terminal inserted in the electrical connector; a lid for engaging the opening of the housing and covering the other end of the first connection terminal and the second connection terminal. The lid has a penetration hole configured to ventilate the housing.

Abstract: A housing of a lower connector has an opening on a side of an upper connector, and houses two movable parts movably from a first state of, by having upper portions thereof engaged with the opening, being in proximity to each other to form a guide hole, and a second state of, by releasing the engagement, being distanced from an external signal terminal. At positions contactable with the two movable parts, the housing has a protrusion whose tip gradually tapers toward the two movable parts in directions in which the two movable parts face each other. The protrusion guides the two movable parts in mutually separating directions, when the engagement between the opening of the housing and the upper portions of the two movable parts is released associated with depression of the upper connector, and the tip enters the gap through which the two movable parts face each other.

Abstract: A housing of a lower connector has an opening on a side of an upper connector, and houses two movable parts movably from a first state of, by having upper portions thereof engaged with the opening, being in proximity to each other to form a guide hole, and a second state of, by releasing the engagement, being distanced from an external signal terminal. At positions contactable with the two movable parts, the housing has a protrusion whose tip gradually tapers toward the two movable parts in directions in which the two movable parts face each other. The protrusion guides the two movable parts in mutually separating directions, when the engagement between the opening of the housing and the upper portions of the two movable parts is released associated with depression of the upper connector, and the tip enters the gap through which the two movable parts face each other.

Abstract: Provided is a connector having excellent vibration resistance. The invention applies to a connector including a terminal portion and a connector housing in which the terminal portion is accommodated and electrically connecting a first object to be connected and a second object to be connected via the terminal portion. A main body-side male contact is connected to the first object to be connected. A main body-side female contact is connected to the second object to be connected. The terminal portion has a connector-side male contact that is inserted into the main body-side female contact, a connector-side female contact into which the main body-side male contact is inserted, and an elastically deformable joint portion that joins the connector-side male contact and the connector-side female contact to each other.

Abstract: An electrical connector is disclosed having a housing and a female terminal. The housing has an assembly receiving space. The female terminal is positioned in the assembly receiving space and has a first female terminal, a second female terminal, and an elastic connecting spring. The first female terminal has a first contact receiving space. The second female terminal has a second contact receiving space and is independently displaceable relative to the first female terminal along a longitudinal axis. The elastic connecting spring connects the first female terminal to the second female terminal.

Abstract: An electrical connector is disclosed having a terminal housing and a female type terminal positioned in the terminal housing. The terminal housing has a first terminal housing, and a second terminal housing positioned independent from the first terminal housing. The female type terminal has a first female terminal, second female terminal, and a coupling member. The first female terminal is positioned in the first terminal housing and is electrically connected to a first male terminal. The second female terminal is positioned in the second terminal housing and is electrically connected to a second male terminal. The coupling member connects the first female terminal to the second female terminal.

Abstract: Provided is an electrical connector mounted on a circuit board and including: a first connection terminal whose one end is electrically connected to the circuit board; a housing for supporting the first connection terminal while having the other end of the first connection terminal surrounded by lateral walls and disposed inside the housing, and having an opening toward an upper part opposite to a bottom part where the housing makes contact with the circuit board; a second connection terminal whose one end is electrically connected to the other end of the first connection terminal and whose other end is electrically connected to an external connection terminal inserted in the electrical connector; a lid for engaging the opening of the housing and covering the other end of the first connection terminal and the second connection terminal. The lid has a penetration hole configured to ventilate the housing.

Abstract: Provided is a connector having excellent abrasion resistance. The invention applies to a connector including a terminal portion electrically connecting two objects to be connected and a connector housing portion in which the terminal portion is accommodated. The connector housing portion has a first housing in which a fixing portion to which a fixed portion formed in the terminal portion is to be fixed is formed and a second housing that engages with a main body-side housing fixed to one of the objects to be connected in a state in which the first housing is accommodated in the second housing.

Abstract: Provided is a connector having excellent vibration resistance. The invention applies to a connector including a terminal portion and a connector housing in which the terminal portion is accommodated and electrically connecting a first object to be connected and a second object to be connected via the terminal portion. A main body-side male contact is connected to the first object to be connected. A main body-side female contact is connected to the second object to be connected. The terminal portion has a connector-side male contact that is inserted into the main body-side female contact, a connector-side female contact into which the main body-side male contact is inserted, and an elastically deformable joint portion that joins the connector-side male contact and the connector-side female contact to each other.

Abstract: An electrical connector is disclosed having a terminal housing and a female type terminal positioned in the terminal housing. The terminal housing has a first terminal housing, and a second terminal housing positioned independent from the first terminal housing. The female type terminal has a first female terminal, second female terminal, and a coupling member. The first female terminal is positioned in the first terminal housing and is electrically connected to a first male terminal. The second female terminal is positioned in the second terminal housing and is electrically connected to a second male terminal. The coupling member connects the first female terminal to the second female terminal.

Abstract: An electrical connector is disclosed having a terminal housing, a female terminal, and a holding protrusion. The female terminal is positioned in the terminal housing and has a terminal body into which a complementary male terminal may be inserted and extracted. The holding protrusion projects from the terminal body in a direction orthogonal to inserting and extracting directions, and is press-fitted in the terminal receiving terminal housing.