Abstract: A charge pump circuit by which fundamental issues involved in the voltage feedback type charge pump circuit have been solved is realized. A power supply circuit includes a charge pump circuit, a feedback circuit feeding an output of the charge pump circuit back to an input of the charge pump circuit, a first current source causing a constant current to flow through the feedback circuit, a MOS transistor element interposed in a middle of the feedback circuit, a resistor element interposed at a position closer to the output of the charge pump circuit than the MOS transistor element in the feedback circuit, a bias circuit applying a constant voltage to a control terminal of the MOS transistor element, and a control section controlling a value of the constant current which the first current source flows through the feedback circuit.

Abstract: An object of the present technology is to stably operate a power supply circuit. A charge switch is connected to a first terminal of a capacitor and charges the capacitor with an input voltage on the basis of a control signal inputted to a control terminal. A discharge switch is complementary with the charge switch, is connected to the first terminal of the capacitor, and discharges on the basis of the control signal inputted to the control terminal the voltage charged to the capacitor, thereby generating an output voltage. A charge control signal converting section converts a charge control signal that controls the charge into a control signal referenced to the input voltage and inputs the resulting control signal to the control terminal of the charge switch. A discharge control signal converting section converts a discharge control signal that controls the discharge into a control signal referenced to the output voltage and inputs the resulting control signal to the control terminal of the discharge switch.

Abstract: A charge pump circuit by which fundamental issues involved in the voltage feedback type charge pump circuit have been solved is realized. A power supply circuit includes a charge pump circuit, a feedback circuit feeding an output of the charge pump circuit back to an input of the charge pump circuit, a first current source causing a constant current to flow through the feedback circuit, a MOS transistor element interposed in a middle of the feedback circuit, a resistor element interposed at a position closer to the output of the charge pump circuit than the MOS transistor element in the feedback circuit, a bias circuit applying a constant voltage to a control terminal of the MOS transistor element, and a control section controlling a value of the constant current which the first current source flows through the feedback circuit.

Abstract: An object of the present technology is to stably operate a power supply circuit. A charge switch is connected to a first terminal of a capacitor and charges the capacitor with an input voltage on the basis of a control signal inputted to a control terminal. A discharge switch is complementary with the charge switch, is connected to the first terminal of the capacitor, and discharges on the basis of the control signal inputted to the control terminal the voltage charged to the capacitor, thereby generating an output voltage. A charge control signal converting section converts a charge control signal that controls the charge into a control signal referenced to the input voltage and inputs the resulting control signal to the control terminal of the charge switch. A discharge control signal converting section converts a discharge control signal that controls the discharge into a control signal referenced to the output voltage and inputs the resulting control signal to the control terminal of the discharge switch.

Abstract: Disclosed herein is a capacitative element, including: a first electrode formed on a substrate; and a second electrode provided so as to sandwich a dielectric between the first electrode and the second electrode and so as to surround the first electrode on four sides along a surface of the substrate.

Abstract: Disclosed herein is a semiconductor integrated circuit including a protected circuit; and a protection element formed on the same semiconductor substrate as the protected circuit and adapted to protect the protected circuit, wherein the protection element includes two diodes having their anodes connected together to form a floating node and two cathodes connected to the protected circuit, the two diodes are formed in a well-in-well structure on the semiconductor substrate, and the well-in-well structure includes a P-type well forming the floating gate, an N-type well which surrounds the surfaces of the P-type well other than that on the front side of the substrate with the deep portion side of the substrate so as to form the cathode of one of the diodes, and a first N-type region formed in the P-type well so as to form the cathode of the other diode.

Abstract: Disclosed herein are a digital-to-analog converter and a video display device. The digital-to-analog converter includes a converting section. The converting section has a code converting section, a reference voltage generating section, a plurality of transistors, and a plurality of gate electrodes. The video display device includes: a pixel section; a plurality of signal lines; one resistor string; and a plurality of converting sections.

Abstract: Disclosed herein is a digital-to-analog converter. The digital-to-analog converter includes: a higher resistor string; a lower resistor string; an operational amplifier; a higher selector; a lower selector; a first switch; a higher capacitor; a second switch; a third switch; and a control circuit.

Abstract: Disclosed herein is a semiconductor integrated circuit including a protected circuit; and a protection element formed on the same semiconductor substrate as the protected circuit and adapted to protect the protected circuit, wherein the protection element includes two diodes having their anodes connected together to form a floating node and two cathodes connected to the protected circuit, the two diodes are formed in a well-in-well structure on the semiconductor substrate, and the well-in-well structure includes a P-type well forming the floating gate, an N-type well which surrounds the surfaces of the P-type well other than that on the front side of the substrate with the deep portion side of the substrate so as to form the cathode of one of the diodes, and a first N-type region formed in the P-type well so as to form the cathode of the other diode.

Abstract: Disclosed herein is a capacitative element, including: a first electrode formed on a substrate; and a second electrode provided so as to sandwich a dielectric between the first electrode and the second electrode and so as to surround the first electrode on four sides along a surface of the substrate.

Abstract: A lever assembly holds a wiper strip, which directly wipes a wiping surface. The lever assembly includes a plurality of levers, which are connected together in tournament style. An axial length of the lever assembly is shorter than an axial length of the wiper strip. A cover member receives the lever assembly, and opposed ends of the cover member hold the wiper strip. The cover member includes a plurality of cover portions, which are formed separately from one another.

Abstract: Disclosed herein are a digital-to-analog converter and a video display device. The digital-to-analog converter includes a converting section. The converting section has a code converting section, a reference voltage generating section, a plurality of transistors, and a plurality of gate electrodes. The video display device includes: a pixel section; a plurality of signal lines; one resistor string; and a plurality of converting sections.

Abstract: Disclosed herein is a digital-to-analog converter. The digital-to-analog converter includes: a higher resistor string; a lower resistor string; an operational amplifier; a higher selector; a lower selector; a first switch; a higher capacitor; a second switch; a third switch; and a control circuit.

Abstract: A rotatable rod includes a plurality of cylindrical center rods and a plurality of joints. Each joint connects between corresponding two of the plurality of center rods. Each of opposed ends of each center rod has at least one engaging projection, which projects from the end of the center rod in a direction parallel to an axial direction of the center rod. Each of opposed ends of each joint has at least one engaging recess, each of which is engaged with a corresponding one of the at least one engaging projection that is provided in an adjacent one of the ends of a corresponding one of the plurality of center rods.

Abstract: A defect detection of light-emitting diodes (LEDs) is electrically performed on a large-scale display, comprising a plurality of light-emitting diodes arranged by a predetermined arrangement on an image display face, voltage detection portions for applying a constant current to a plurality of light-emitting diodes in an off region at a forward voltage or less in accordance with an input of a signal indicating a defect detection mode and detecting voltages between terminals of light-emitting diodes arising when the constant current flows there through, and a defect detection portion for electrically detecting a defect from the plurality of light-emitting diodes based on detection results of the voltage detection portion; and drive circuit devices (driver ICs) having the above configuration are serially connected and an electric signal indicating a result of defect detection is output from its final stage.

Abstract: A capacitance sensor used as a fingerprint sensor is provided which includes, in addition to a sensor array (11) in which sensor cells (100) each with a sense electrode are disposed in the form of an array, a canceling dummy block (14) having, disposed in an area having no relation with any object under detection, one column of dummy cells (141) corresponding to each row in the sensor array (11) and each having a dummy electrode nearly identical in parasitic capacitance to the sense electrode of the sensor cell (100). Also, a differentiation output unit (183) is provided to differentiate between a sensed voltage Vsig sensed at the sensor array (11) by sensing circuit (13) and sensed voltage Vdmy sensed at the canceling dummy block (14), thereby eliminating the influence of a variation in parasitic capacitance Cp, caused by a production tolerance.

Abstract: A stator includes first and second piezoelectric elements, a flexible aluminum-based connective arrangement and upper and lower aluminum-based metal blocks. The flexible aluminum-based connective arrangement includes first to fourth aluminum-based electrodes, which apply a voltage to the piezoelectric elements to generate a vibration. Each aluminum-based electrode is made of one of aluminum and an aluminum alloy and directly contacts a corresponding one of axial ends of the piezoelectric elements. Each aluminum-based metal block is made of one of aluminum and an aluminum alloy. The piezoelectric elements and the aluminum-based electrodes are interposed between the aluminum-based metal blocks.

Abstract: A lever assembly holds a wiper strip, which directly wipes a wiping surface. The lever assembly includes a plurality of levers, which are connected together in tournament style. An axial length of the lever assembly is shorter than an axial length of the wiper strip. A cover member receives the lever assembly, and opposed ends of the cover member hold the wiper strip. The cover member includes a plurality of cover portions, which are formed separately from one another.

Abstract: A capacitance sensor usable as a fingerprint sensor is provided in which a timing controller (16) provides such a switching control as to first cause a switch (SA) in a sensor cell (100-k) to turn on to set the potential at a sense electrode to a reference potential and then a switch SB to turn on after the switch (SA) is turned off, whereby charge is stored from the sensor cell (100-k) into a reference capacitance Cf1 of a sensing circuit (13-k), the sensitivity of sensing the capacitance is raised by increasing the number of times the charge storage is repeated and only signal components are extracted by reducing noise components by averaging.

Abstract: A lower metal block of a stator includes a plurality of securing projections, which engage with an external member and are arranged in an outer peripheral surface of the lower metal block at generally equal angular intervals. Each securing projection is circumferentially located between corresponding two of slits of the lower metal block and has first and second axial ends, which are opposed to one another in a direction generally parallel to the axial direction of the stator and are oriented toward first and second axial ends, respectively, of the stator. The first axial end of each securing projection is axially positioned within an axial extent of the slits, which is measured in the axial direction of the stator.