Abstract:
PROBLEM TO BE SOLVED: To provide a high stability, high efficiency DC driver circuit of light-emitting element by improving a flicker.SOLUTION: The DC driver circuit 10 of light-emitting element comprises a bridge rectifier (rectifier unit) 12a, a constant current unit 14, and a light-emitting module 16. The bridge rectifier 12a rectifies an external AC voltage to produce a DC voltage. The constant current unit 14 is connected electrically with the bridge rectifier 12a, and feeds a corresponding DC current based on the DC voltage. The light-emitting module 16 is driven by this DC current. The light-emitting module 16 has a plurality of light-emitting elements LED1, LED2, and a diode D5 connected in series. The plurality of light-emitting elements LED1, LED2 are connected, respectively, in parallel with smoothing capacitors C1, C2.
Abstract:
PROBLEM TO BE SOLVED: To provide a connector capable of blocking signal interference, in which crosstalk by return current can be prevented. SOLUTION: The connector includes: an insulator body; a signal terminal of USB 2.0, a grounding terminal of USB 3.0, a first signal transmitting terminal of USB 3.0 and a second signal transmitting terminal of USB 3.0, which are provided on the insulator body; and a cover member 40. The cover member has a housing chamber 400 for housing a front opening, the insulator body, the signal terminal of USB 2.0, the grounding terminal of USB 3.0, the first signal transmitting terminal of USB 3.0 and the second signal transmitting terminal of USB 3.0; a back plate 42; and at least one groove provided on the back plate and located between the first signal transmitting terminal of USB 3.0 and the second signal transmitting terminal of USB 3.0 which are adjacent to each other as viewed from the back. The cover member encloses the insulator body, the signal terminal of USB 2.0, the grounding terminal of USB 3.0, the first signal transmitting terminal of USB 3.0 and the second signal transmitting terminal of USB 3.0. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a driver circuit of a light-emitting element capable of driving the light-emitting element at high efficiency, a high power factor and high stability without a flicker.SOLUTION: A first light-emitting element 4, a reverse electromotive voltage generation unit 6 and a second light-emitting element 5 are sequentially and serially connected as a load. After an alternating current power supply 1 is rectified to a direct current power supply by a rectifier 2, a current is limited to a constant power by an overcurrent protective device 3, and flows to the first light-emitting element 4 or the second light-emitting element 5. The reverse electromotive voltage generation unit 6 generates reverse bias, so that an operation voltage of the first light-emitting element 4 or the second light-emitting element 5 can be reduced. As a result, in the driver circuit of the light-emitting element, driving efficiency and power factor can be increased.
Abstract:
PROBLEM TO BE SOLVED: To extend the operation time of an electronic device having an exhausted battery by a pocket power supply. SOLUTION: This pocket power supply is provided with a first section 11, a second section 12 arranged on the first section 11, the electronic device arranged inside the first section 11 in such a way as to be detachable; a power supply assembly 2 arranged inside the second section 12, a power indicator 3 arranged on the second section 12 to indicate the remaining electric power of the power assembly 2, a charging socket 4, a power supply socket 5 that is connected to the electronic device via a cord and that supplies electric power to the electronic device, and the computer port 6 that is connected to a computer via a cable to exchange data between the computer and the electronic device. The power assembly is provided with the battery, a battery changing-over member, a boosting circuit, a charging circuit, a battery protecting circuit, and a battery remaining capacity sensing circuit. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an electric shock prevention fluorescent lamp capable of making a user safely perform mounting work by the same procedure as a conventional fluorescent lamp.SOLUTION: The electric shock prevention fluorescent lamp includes a body and two bases. The body has a light-emitting module. Each base has a first connection terminal, a first safety switch, an elastic conductive unit, and a second connection terminal, and the bases are respectively arranged on both sides of the body. When the electric shock prevention fluorescent lamp is mounted, the safety switch can deform the corresponding elastic conductive unit if either of the safety switch receives a pressure force, and the elastic conductive unit and the corresponding second connection terminal are electrically connected. Thus, the first connection terminal and the second connection terminal are conducted each other. When the pressure force applied to the safety switch is opened, the deformed elastic conductive unit pushes the safety switch in a direction opposite to the pressure force, and the first connection terminal and the second connection terminal become in a disconnected state.
Abstract:
PROBLEM TO BE SOLVED: To provide a light source device having a long lifetime with a low cost and having a high light emission efficiency with a high color rendering evaluation index.SOLUTION: A plurality of fluorescent particles which become a complementary color thin film layer are coated, vapor-deposited or sprayed, or transparent colloid containing a plurality of fluorescent particles is uniformly attached to inside a cover, thereby, a part of first wavelength light emitted from a light-emitting unit passes the complementary color thin film layer to obtain a second wavelength light. The remaining first wavelength light and the second wavelength light are mixed to obtain white-color light. The white-color light can be obtained from the first wavelength light without the need of packing the phosphor together in a packaging process of the light-emitting unit, or without the need of contacting closely the phosphor and a packaging material to the light-emitting unit. Further, by separating the complementary color thin film layer from a packaging layer of the light-emitting unit, the effect of heating by the light-emitting unit is not given to the phosphor in the complementary color thin film layer, and light emission efficiency of the white-color light obtained by mixing can be enhanced.
Abstract:
PROBLEM TO BE SOLVED: To enable a user of an AV player to monitor one or a plurality of persons by listening to sounds broadcasted from the AV player while watching a screen of the AV player. SOLUTION: An apparatus comprises one or a plurality of image catching and sound reading assemblies 3 and a power supply assembly 2. Each of the image catching and sound reading assemblies 3 is adapted to catch images and read sounds, convert the images and the sound into image and sound signals, and send the image and sound signals in electromagnetic waves. The power supply assembly 2 is remoted from the image catching and sound reading assemblies 3 and includes a receiver circuit having an associated antenna for receiving electromagnetic waves containing the image and sound signals from the image catching and sound reading assemblies 3 and sending the processed image and sound signals to an AV player 1 for display and broadcasting, and power supply means for supplying power to the AV player 1. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an induction heating apparatus used for a solder connection work between a terminal and an electric wire in an electric connector, and that enables simple and certain solder connection.SOLUTION: An induction heating apparatus is configured by: a heating unit having an AC power supply 41, and a first heating coil 23L and a second heating coil 23R respectively configured by one turn of coil, the heating coils 23L and 23R being located in parallel to each other, the heating unit being configured to be applied with an AC current flowing in the same direction by the AC power supply 41; a cable holding device having a connector holding base holding a connector 72, and configured to be movable, and that can move between a standby position or a detachment position where attachment and detachment of the connector 72 are performed, and a heating position in the heating unit. The heating position is set to a position where the connector 72 receives a magnetic flux generated in a direction substantially orthogonal to a coil formation surface in a space surrounded by the heating coils when the AC current flowing in the same direction in the heating coils 23L and 23R by the AC power supply 41 is applied.
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent lamp circuit using a light emitting element, allowing an LED fluorescent lamp to be directly mounted in an inverter-type fluorescent lamp fixture.SOLUTION: An LED fluorescent lamp can be mounted in a conventional inverter-type fluorescent lamp fixture without changing wiring in a fluorescent lamp fixture by means of a fluorescent lamp circuit including: a capacitor which is connected to connection terminals of an inverter-type fluorescent fixture including an inverter-type stabilizer to change a resonant frequency of a resonant circuit of the inverter-type stabilizer; a rectification unit which is connected to the capacitor and rectifies an AC voltage to a DC voltage; a constant current unit which is connected to the rectification unit and outputs a DC current corresponding to the DC voltage; and a light emitting element which is connected to the constant current unit and the rectification unit.
Abstract:
PROBLEM TO BE SOLVED: To provide an LED module with controllable luminosity.SOLUTION: The LED module according to the present invention includes an LED chip, a switch, and an arithmetic processing unit. The LED chip is electrically connected to a protection resistor, and the protection resistor prevents the LED chip from being burned. The switch and a switching resistor are electrically connected, and the switch and the switching resistor are connected in parallel to the protection resistor. The arithmetic processing unit is electrically connected to the switch, and is used for receiving a switching signal. The arithmetic processing unit switches electrical connection/disconnection of the switch according to the switching signal, thus changing the resistance values of the entire circuit to control the luminosity of the LED chip.