Bizarre Patents
A kissing shield comprised of a thin, flexible membrane and a frame or holder.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8072782 | System for generating a regulated tension supplying an electric organ The device (10) comprises an energy-storage transformer (14) having magnetically coupled primary and secondary windings (P and L1, L2, L3); a primary circuit (20) connecting the power supply source to a ground (M), and compr... | 12/06/2011 |
| 8035999 | Isolating self-oscillation flyback converter An isolating self-oscillation flyback converter includes a coupling transformer T1, a FET TR1, a transistor TR2, a photoelectric coupling isolator OC1 and a load feedback circuit Adj. The common polarity terminal of a feedback winding Nfb... | 10/11/2011 |
| 8035998 | Switching power supply A switching power supply includes an active device for pulling out a part of a control signal from a control terminal of the switching device in an RCC, and a control signal generation circuit that applies adjustment voltage as ON/OFF time control voltage to a contr... | 10/11/2011 |
| 7894213 | DC to DC converter An exemplary DC to DC converter includes a first transistor, a second transistor, a transformer, and a pulse generating circuit having a first capacitor, a sampling resistor, a zener diode, and a first diode. A DC voltage input terminal is configured for receiving a... | 02/22/2011 |
| 7760518 | Method and apparatus for fault detection in a switching power supply Techniques are disclosed to detect a fault in the feedback circuit of a switching power supply while the power supply operates in a mode where the output is below its regulated value. The power supply delivers maximum power at a given switching frequency without a f... | 07/20/2010 |
| 7684214 | Self-oscillating switching regulator A self-oscillating switching regulator includes a control winding N3allowing a voltage to be induced therein by a magnetic flux created in a primary winding N1 of a high frequency transformer T, a capacitor C3 charged by the voltage induced in t... | 03/23/2010 |
| 7609533 | Light-load efficiency improving method and apparatus for a flyback converter A flyback converter has a controller to switch a power switch so as to convert an input voltage to an output voltage for a load by monitoring an output voltage dependent signal and a current sensing signal derived from a current flowing through the power switch, a l... | 10/27/2009 |
| 7539028 | Method and apparatus for fault detection in a switching power supply Techniques are disclosed to detect a fault in the feedback circuit of a switching power supply while the power supply operates in a mode where the output is below its regulated value. The power supply delivers maximum power at a given switching frequency without a f... | 05/26/2009 |
| 7492612 | High-voltage generator A high-voltage generator includes a high-voltage transformer having a primary coil, a secondary coil, and an auxiliary coil, and a PNP bipolar junction transistor. Based on the self-oscillation theory of a LC oscillator, an oscillating voltage is generated across th... | 02/17/2009 |
| 7466568 | Switching power supply circuit A switching power supply circuit of the present invention includes: a transformer including a main winding and an auxiliary winding, which are magnetically coupled together on a primary winding side; a switching element for intermittently supplying a direct-current ... | 12/16/2008 |
| 7433208 | Switching power supply device and electronic apparatus A switching power supply device includes a primary winding of a transformer that is connected in series to a first switching element, and a secondary winding is provided with a rectifier circuit and an output voltage control circuit arranged to detect an output volt... | 10/07/2008 |
| 7423385 | System and method for controlling voltage on discharge capacitors which control light energy from flash lamps A system and method are described for controlling voltage on discharge capacitors which control light energy from flash lamps, wherein the method includes measuring over time an operational behavior of a flash lamp for performing photothermolysis, wherein a discharg... | 09/09/2008 |
| 7394670 | Switching power source A control circuit 8 of a switching power source comprises a voltage detector 31 for detecting a voltage VDC of a DC power supply 1 to produce a detection voltage VDT; a comparator 41 for producing an output signal V | 07/01/2008 |
| 7369420 | Control circuit for isolated forward DC-to DC converters An isolated DC-to-DC converter comprises a converter section configured to receive an input voltage and produce an isolated output voltage and a controller section configured to control the operation of the converter section to maintain the output voltage at a prede... | 05/06/2008 |
| 7365996 | Switched-mode power supply A switched-mode power supply for converting a DC input voltage (Uzk) into an output voltage (Ua). The switched-mode power supply comprises a circuit (AST) for triggering at least one controlled switch (S) that periodically applies the input voltage to at least one p... | 04/29/2008 |
| 7358690 | Motor control apparatus In a motor control apparatus in which a higher voltage is directly applied to a driving unit for a motor from a battery and a lower voltage stepped down by a switching regulator from the battery is also supplied to a control unit, the switching regulator is started ... | 04/15/2008 |
| 7355867 | Power supply for an electric meter having a high-voltage regulator that limits the voltage applied to certain components below the normal operating input voltage Disclosed is an invention relating to a power supply for use in an apparatus for measuring electrical energy, comprising, in one embodiment, a first switching device, a device for storing electrical charge in electrical connection with the first switching device, a ... | 04/08/2008 |
| 7353481 | Computer implemented method for designing a semiconductor integrated circuit and a semiconductor integrated circuit A computer implemented method for designing a semiconductor integrated circuit includes placing dummy pattern on a second interconnection layer positioned just above the first power line based on a placement result of the first power line, the dummy pattern having a... | 04/01/2008 |
| 7348845 | System and method for employing variable magnetic flux bias in an amplifier A system and method for employing variable magnetic flux bias in an amplifier. The amplifier system comprises an output transformer and a magnetic sensor configured to sense a first magnetic flux of the output transformer. The magnetic sensor generates a flux signal... | 03/25/2008 |
| 7342768 | Active balancing modular circuits Provided are active balancing modules that control voltage imbalances between capacitors stacked in a series arrangement and methods for their manufacture. These modules are simple and inexpensive to manufacture, and versatile. They may be used alone or they may be ... | 03/11/2008 |
| 7336507 | Power supply outputting multiple voltages A power supply includes a transformer, a second output line, a second output line, a controller, and a current bypass circuit. The transformer has a primary side and a secondary side. The first output line derived from a first point on the secondary side. The first ... | 02/26/2008 |
| 7333350 | Self driven synchronous rectifier shutdown circuit and method There is disclosed a power conversion circuit comprising a transformer having a primary side driven by an input section and a secondary side connected to first and second self-driven synchronous rectifiers. A shutdown section includes a control section adapted to de... | 02/19/2008 |
| 7333353 | Isolating type self-oscillating flyback converter with a soft start loop An isolating type self-oscillating flyback converter is disclosed, which includes a coupled transformer, a FET, a transistor and an electro-optical coupled isolating feedback unit, wherein the input terminal of the circuit is connected to the source of the FET throu... | 02/19/2008 |
| 7330024 | Power supply device, test apparatus, and power supply voltage stabilizing device A power supply device for supplying source current to an electronic device comprises: a current output unit for outputting output current including at least the source current as a component of the current thereof; a connection resistor which electrically connects t... | 02/12/2008 |
| 7330359 | Power supply unit The present invention is directed to a power supply unit that provides large power supply to the load. The voltage detector 51 generates a voltage detection signal by detecting the voltage generated at the output terminals 21, 22. The current detector ... | 02/12/2008 |
| 7315162 | Reducing power consumption of electrical meters The invention contemplates an electrical power meter and method of operating the electrical power meter. The inventive power meter includes a power supply for converting alternating current (AC) voltage to a direct current (DC) voltage for powering the electronic co... | 01/01/2008 |
| 7310244 | Primary side controlled switching regulator A switching regulator includes a transformer having a primary winding and an auxiliary winding connected to the supply rail of the switching regulator. The primary winding is coupled to the positive supply rail. The auxiliary winding is coupled to the negative suppl... | 12/18/2007 |
| 7304870 | Power converter A power converter comprises an inductor (L) and a main switch (M1) having a main current path, the inductor (L) and the main current path are arranged in series to receive a DC-input voltage (VIN). A control circuit (CC) controls on-periods (Ton) and/or off-p... | 12/04/2007 |
| 7300493 | Apparatus and method for controlling air cleaning Disclosed is an apparatus and method for controlling an air cleaning. The apparatus includes an air cleaning element, an AC high-voltage generator and a control unit. The air cleaning element generates negative ions and ozone using plasma discharge, and cleans indoo... | 11/27/2007 |
| 7295449 | Simple switched-mode power supply with current and voltage limitation This invention relates to a primary-controlled switched-mode power supply of the type of a free-running flyback converter, which comprises a transformer with a primary-side winding, a secondary-side winding and at least one auxiliary winding. The switched-mode power... | 11/13/2007 |
| 7292461 | Switching power source apparatus A switching power source apparatus has a switching element being connected with a DC power source through a primary winding of a transformer in which parasitic capacitance exists between terminals of the switching element. A voltage V4 of free oscillation app... | 11/06/2007 |
| 7289340 | Switching power supply device A novel switching power supply device no more in need of a stand-by signal for turning on/off a switching element is provided. The switching power supply device is configured as having a main switching element Q1, wherein the switching power supply circuit is connec... | 10/30/2007 |
| 7286373 | Full-resonant power circuit device for receiving a variable input voltage The present invention provides a full-resonant power circuit device for receiving a variable input voltage that a power factor correcting circuit for separating a variable input voltage AC into a plurality of supply voltages, and the input voltage sections are detec... | 10/23/2007 |
| 7262977 | Switching-mode power supply having a synchronous rectifier A switching-mode power supply capable of causing conduction through a synchronous rectifier switch exactly when required. Included is a transformer having a primary winding connected to a pair of DC input terminals via an active switch, and a secondary winding conne... | 08/28/2007 |
| 7259948 | Power supply device for driving A power supply device for driving has a switching control circuit that switches a switching element for a power source, and an output voltage generation portion that generates a predetermined output voltage in accordance with the switching of the switching element f... | 08/21/2007 |
| 7245087 | Power conversion device A power conversion device has a series circuit of a main switching element and a sub-switching element connected to both ends of a DC power supply, an insulating transformer, and control circuits. The main switching and sub-switching elements are alternately turned ... | 07/17/2007 |
| 7242596 | Control method for switching power supply circuit A control method for controlling a switching power supply circuit has a control circuit including a setting device that limits the exciting current of a transformer at the time of changeover from a switching delay to a switching period. The setting value set by the ... | 07/10/2007 |
| 7239125 | Method and apparatus for electronic meter testing An electronic energy meter senses input voltage and current signals and processes the input voltage and current signals to generate measurements of multiple types of power. The meter comprises a processing system for selecting one of the multiple types of power and ... | 07/03/2007 |
| 7235956 | Step up switching converter A step up switching converter is disclosed. The switching converter comprises a first semiconductor switch arranged in series connection with a storage inductor and a sensor resistor. The control electrode of the first semiconductor switch is connected via a resisto... | 06/26/2007 |
| 7227118 | Light-emitting element driving circuit having a switching unit with a diode A light-emitting element driving circuit comprises a current supplier serially connected to a light-emitting element and operative to supply a current to the light-emitting element; and a switching unit operative to control switching between the states of the curren... | 06/05/2007 |
