Abstract: A power source device includes a transformer including a primary winding and a secondary winding; a first switch portion connected with the primary winding in series; a circuit including a capacitor and a second switch portion connected in series and connected with the primary winding in parallel; a controller for controlling conduction between the first switch portion and the second switch portion, wherein the first switch portion and the second switch portion are alternately conducted to generate an output voltage at a secondary side of the transformer, a detecting portion for detecting a current flowing through the first switch portion. The controller controls conduction of the first switch portion and the second switch portion so that a value of the current detected by the detecting portion does not exceed a threshold depending on conduction times of the first switch portion and second switch portion.

Abstract: The power supply apparatus includes a control unit that can perform intermittent operation of alternately repeating a switching period and a switching halt period, wherein the switching period is for performing switching operation of alternately turning on or turning off two switching elements across a turn-off period for turning off both of the two switching elements, and the switching halt period is for halting the switching operation. In a transition from the switching period to the switching halt period, the control unit makes the transition to the switching halt period after turning on a second switching element. In a transition from the switching halt period to the switching period, the control unit also makes the transition to the switching period after turning on the second switching element.

Abstract: An error detection device includes a generation unit and a detection-correction unit. When writing data into a storage unit, the generation unit generates error detection information for each piece of division-data into which write-data are divided. The error detection information is information which is available in determining whether a bit error includes in the division-data, and by which a position where the bit error is caused can be detected based on plural pieces of the error detection information of the plural division-data composing the write-data. Using the error detection information, the detection-correction unit can determine whether the bit error is caused in the division-data. Using plural pieces of the error detection information of the data including the division-data in which it is detected that the bit error is caused, the detection-correction unit can detect the position where the error is caused, and can correct the bit error.

Abstract: A power source device includes a transformer including a primary winding and a secondary winding; a first switch portion connected with the primary winding in series; a circuit including a capacitor and a second switch portion connected in series and connected with the primary winding in parallel; a controller for controlling conduction between the first switch portion and the second switch portion, wherein the first switch portion and the second switch portion are alternately conducted to generate an output voltage at a secondary side of the transformer, a detecting portion for detecting a current flowing through the first switch portion. The controller controls conduction of the first switch portion and the second switch portion so that a value of the current detected by the detecting portion does not exceed a threshold depending on conduction times of the first switch portion and second switch portion.

Abstract: A power source device includes a transformer including a primary winding and a secondary winding; a switching element for enabling or disabling supply of electric power to the primary winding by a switching operation; a controller for controlling the switching operation, wherein the controller is capable of effecting continuous control in which the switching operation is continued and intermittent control in which a switching period in which the switching operation is performed and a rest period in which the switching operation is at rest are repeated, a calculating portion not operating in the rest period; and a measuring portion continuing operation even in the rest period. When a predetermined time has elapsed from a start of the rest period, the measuring portion causes the calculating portion to resume the operation thereof, and starts the switching period.

Abstract: A holding apparatus includes a holding member that holds an electronic apparatus, a supporting member that is connected to the holding member and supports the holding member, and a first pushing member and a second pushing member which are disposed between the holding member and the supporting member. When the first pushing member is handled by the user, the first pushing member pushes the second pushing member in the first direction toward the holding member, and pushes the holding member in the second direction toward the supporting member and opposite to the first direction.

Abstract: An integrated circuit connection structure includes a contact plug extending vertically in a first dielectric, a conductive line formed of a metal extending horizontally in the first dielectric, and a contact plug extension that extends between a top surface of the contact plug and the conductive line. The plug extension is formed of the metal, has a bottom surface that lies in contact with the top surface of the contact plug, and is bounded on at least one side by a portion of a second dielectric material.

Abstract: The power supply apparatus includes a control unit that can perform intermittent operation of alternately repeating a switching period and a switching halt period, wherein the switching period is for performing switching operation of alternately turning on or turning off two switching elements across a turn-off period for turning off both of the two switching elements, and the switching halt period is for halting the switching operation. In a transition from the switching period to the switching halt period, the control unit makes the transition to the switching halt period after turning on a second switching element. In a transition from the switching halt period to the switching period, the control unit also makes the transition to the switching period after turning on the second switching element.

Abstract: Depending on an output impedance of a commercial AC power supply calculated by an output impedance calculating unit, a control unit controls the supply of power so that the current of a first waveform pattern, capable of supplying an amount of power to be supplied to a heat generating member determined based on temperature information and capable of supplying power such that a harmonic current value is suppressed to be smaller than a predetermined value, flows into the heat generating member, or the control unit controls the supply of power so that the current of a second waveform pattern, capable of supplying an amount of power to be supplied to the heat generating member based on the temperature information and capable of supplying power such that the value of a flicker Pst is suppressed to be smaller than a predetermined value, flows into the heat generating member.

Abstract: An electronic apparatus includes a first unit, a second unit held by the first unit, and a third unit held by the first unit via the second unit. The first unit has a first rotation regulating portion that regulates the rotation of the second unit in a first direction, a second rotation regulating portion that regulates the rotation of the third unit in the first direction, and a third rotation regulating portion that regulates the rotation of the second unit and the third unit in a second direction opposite to the first direction.

Abstract: Depending on an output impedance of a commercial AC power supply calculated by an output impedance calculating unit, a control unit controls the supply of power so that a current of a first waveform pattern capable of supplying an amount of power to be supplied to a heat generating member determined based on temperature information and capable of supplying power such that a harmonic current value is suppressed smaller than a predetermined value flows into the heat generating member, or the control unit controls the supply of power so that a current of a second waveform pattern capable of supplying an amount of power to be supplied to the heat generating member based on the temperature information and capable of supplying power such that the value of a flicker Pst is suppressed smaller than a predetermined value flows into the heat generating member.

Abstract: A holding apparatus includes a holding member that holds an electronic apparatus, a supporting member that is connected to the holding member and supports the holding member, and a first pushing member and a second pushing member which are disposed between the holding member and the supporting member. When the first pushing member is handled by the user, the first pushing member pushes the second pushing member in the first direction toward the holding member, and pushes the holding member in the second direction toward the supporting member and opposite to the first direction.

Abstract: The frequency by which an overtaking process is performed is improved, so that memory access performance is improved. A vector processor 1000 includes an element check unit 123 that calculates a state of bits of a preset number of digits from a least significant digit of an address of a memory, which is accessed by a load instruction or a store instruction, as an element check result, and an overtaking determination unit 122 that performs overtaking determination of a load instruction for a store instruction preceding to the load instruction on the basis of the element check result.

Abstract: The image forming apparatus includes a fixing section which has a heater and heats and fixes an unfixed image, formed on a recording material, to the recording material, a power supply section which has a rectification section rectifying alternating current, a power factor improvement section receiving input of current output from the rectification section, and a DC/DC converter DC/DC converting current output from the power factor improvement section, a current detection section which detects current flowing to the heater, and a control section which controls operation of the power factor improvement section according to current detected by the current detection section.

Abstract: An electronic apparatus includes a first unit, a second unit held by the first unit, and a third unit held by the first unit via the second unit. The first unit has a first rotation regulating portion that regulates the rotation of the second unit in a first direction, a second rotation regulating portion that regulates the rotation of the third unit in the first direction, and a third rotation regulating portion that regulates the rotation of the second unit and the third unit in a second direction opposite to the first direction.

Abstract: When a rotation member stops rotation, driving of a plurality of heating elements is sometimes partially limited. A control unit detects a current flowing to the plurality of heating elements when the rotation member stops rotation, and driving of the plurality of heating elements is partially limited. The control unit sets the power ratio of power to be supplied to the plurality of heating elements during a period in which the rotation member rotates to raise a fixing device to a fixing enable state in accordance with the detection result.

Abstract: When a rotation member stops rotation, driving of a plurality of heating elements is sometimes partially be limited. A control unit detects a current flowing to the plurality of heating elements when the rotation member stops rotation, and driving of the plurality of heating elements is partially limited. The control unit sets the power ratio of powers to be supplied to the plurality of heating elements during a period the rotation member rotates to raise a fixing device to a fixing enable state in accordance with the detection result.

Abstract: A ceramic heater in contact with an inner surface of an endless belt includes a substrate made of alumina and a heat generation resistor provided on the substrate. The heat generation resistor is disposed at a surface reverse to a surface facing the inner surface of the endless belt on the substrate. The substrate is one of a plurality of substrates which are divided from a large substrate along breaks formed on the large substrate, and a surface of the ceramic heater, which is on a side where the breaks are formed, is brought into contact with the inner surface of the endless belt. The holder for holding the ceramic heater has a projection for guiding the endless belt in such a manner that the endless belt cannot be brought into contact with the break of the substrate.