Bizarre Patents
Crispy Chip Sandwich and Process of Producing a Sandwich Product
A food product comprising a multilayer cookie or snack having outer layers formed from a crispy type edible food product such as a potato chip or corn chip, etc. with an intermediate marshmallow layer being in contact with the inner surface of each crispy chip and one or more filler substances.
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| Number | Title | Issue Date |
| 8050064 | Semiconductor power conversion device A surge voltage target setting unit obtains a main circuit power supply voltage of a semiconductor power conversion device based on an inter-terminal voltage of a semiconductor switching element detected by a voltage detection unit, and sets a control target of a su... | 11/01/2011 |
| 8004867 | Switching power supply unit A witching power supply unit, which suppresses switching loss in switching elements and surge voltage onto an output rectifier device and reduces the number of components, is provided. The switching power supply unit include: a switching circuit of full bridge type ... | 08/23/2011 |
| 7924582 | Switching device and method, in particular for photovoltaic generators The subject matter of the invention is an inverter (3), more specifically for use in a photovoltaic plant (1) with a direct voltage input (connection terminals 4; 5) for connection to a generator (2) and an alternating voltage output (con... | 04/12/2011 |
| 7839666 | Optimizing operation of DC-to-AC power converter In one embodiment, a power converter system includes an input terminal for receiving a DC input voltage. The power converter system delivers AC power to a load at an output terminal. A transformer is coupled between the input terminal and the output terminal. The tr... | 11/23/2010 |
| 7710750 | Inverter with time counting function The inverter according to the invention includes a control microcomputer including a protector circuit that stops the inverter when an anomaly is caused, a counter that counts the driving clock signals of the microcomputer from the instance at which the protector ci... | 05/04/2010 |
| 7706157 | Systems and methods involving balancing currents for thyristors An exemplary embodiment includes a method for balancing thyristor bridge circuits, the method comprising, determining currents of thyristors in a first leg of thyristors of a thyristor bridge circuit, determining a first set of gate firing times for the thyristors i... | 04/27/2010 |
| 7492618 | Inverter device An inverter device includes an inverter circuit, an inverter driving unit, and a clamp diode. The inverter circuit includes an upper arm unit and a lower arm unit connected in series. The upper arm unit and the lower arm unit include switching elements that drive a ... | 02/17/2009 |
| 7405955 | Switching power supply unit and voltage converting method The present invention provides a switching power supply unit and a voltage converting method capable of suppressing a surge voltage applied to an output rectifier element more effectively. Energy in the direction of suppressing reverse voltages (surge voltages) appl... | 07/29/2008 |
| 7362598 | Synchronous rectifier gate drive shutdown circuit A power converter that includes a transformer, a bridge input circuit, a self-driven synchronous rectifier circuit, a gate drive circuit, and a gate drive shutdown circuit. The transformer includes a primary winding connected to the bridge input circuit, a first sec... | 04/22/2008 |
| 7358791 | Discharge protection circuit A discharge protection circuit for discharging a full-bridge circuit in a brushless DC fan, wherein the brushless DC fan comprises a control circuit outputting at least one first control signal and at least one second control signal to the full-bridge circuit. The s... | 04/15/2008 |
| 7319579 | Snubber circuit A snubber circuit has a voltage detection circuit which detects that a voltage between first and second terminals exceeds a predetermined voltage, a protection circuit which performs control to prevent an overvoltage between the first and second terminals when the v... | 01/15/2008 |
| 7315130 | Switching control for inverter startup and shutdown An electronic ballast circuit for a lamp is described, wherein the ballast comprises a power factor correction circuit coupled to an inverter circuit. The inverter circuit is further coupled to a trigger circuit, which is in turn operatively connected to a hot or ne... | 01/01/2008 |
| 7315462 | Stabilized power supply A stabilized power supply for X-ray tubes having a first rectifier circuit, an inverter circuit comprising main switches, a transformer, a second rectifier circuit an oscillation circuit and an inverter circuit. The power supply includes an auxiliary circuit that ca... | 01/01/2008 |
| 7313003 | Switching power supply unit The present invention provides a switching power supply unit capable of suppressing a surge voltage generated in a rectifier element more effectively. A first resonance circuit is constructed by capacitors in a surge voltage suppressing circuit and an inductor, and ... | 12/25/2007 |
| 7272020 | Isolated, current-fed, pulse width modulation, DC-DC converter A current-fed DC-DC converter has a topology that improves converter performance and operates an input inductor in continuous conduction mode. The configuration and operation of the converter produces reduced requirements for circuit component ratings and leads to f... | 09/18/2007 |
| 7269548 | System and method of creating and using compact linguistic data A system and method of creating and using compact linguistic data are provided. Frequencies of words appearing in a corpus are calculated. Each unique character in the words is mapped to a character index, and characters in the words are replaced with the character ... | 09/11/2007 |
| 7262979 | Current source wave voltage inverter voltage-clamping and soft-switching techniques, and fuel cell system using the same A current-source sine-wave voltage inverter for converting a direct current (DC) voltage to an alternating (AC) voltage includes a DC source for providing a DC voltage, a current source circuit having a primary side inductance of a transformer, a clamping circuit, a... | 08/28/2007 |
| 7247998 | Transient detection of end of lamp life condition apparatus and method A sensor system adapted to detect unwanted transients in the primary side of a luminous lamp load driving circuit and effect a change in operation of the driving circuit. A detection circuit is adapted to detect a transient, determine if it is an appropriate end-of-... | 07/24/2007 |
| 7245180 | Intelligent RF power control for wireless modem devices A bypass circuit is disclosed for use with lower power supply voltage PC cards. The bypass circuit controls the power supply voltage fed to a power amplifier when switching between a lower power 8-PSK modulation mode and a higher power GMSK modulation mode. A step-u... | 07/17/2007 |
| 7221121 | Frequency converter for different mains voltages The invention is directed to controlling an electric motor by means of a frequency converter. The frequency converter can be connected to one of several different mains voltages. According to the present invention, the maximum output power of the frequency converter... | 05/22/2007 |
| 7212063 | Half-bridge circuit with phase output A half-bridge circuit, in which an input signal that is applied between two input terminals can be picked up at a phase output comprises two switching transistors controlled by a respective control signal that is applied between a control electrode and an auxiliary ... | 05/01/2007 |
| 7208891 | Variable speed drive for a chiller system A variable speed drive with a boost converter is provided for a chiller system driven by an induction motor. The boost converter can be a diode or thyristor rectifier followed by a boost DC/DC converter or a three-phase pulse width modulated boost converter. The boo... | 04/24/2007 |
| 7201010 | Compressor control system for vehicle air conditioner In a compressor control system for a vehicle air conditioner, a hybrid ECU of the vehicle controls a rotation speed of a compressor electric motor. In this case, an output circuit, which outputs a driving signal for driving the compressor electric motor, only needs ... | 04/10/2007 |
| 7202626 | Variable speed drive for a chiller system with a switched reluctance motor A variable speed drive with a boost converter is provided for a chiller system driven by a switched reluctance motor. The boost converter can be a diode or thyristor rectifier followed by a boost DC/DC converter or a three-phase pulse width modulated boost converter... | 04/10/2007 |
| 7196916 | Alternated duty cycle control method for half-bridge DC-DC converter Apparatus, methods system and devices for using alternated duty cycle control to achieve soft-switching for at least one switch of the two half-bridge switches. When soft-switching can be only achieved for one switch, alternated duty cycle control alternates the sof... | 03/27/2007 |
| 7196436 | Solid state relay for switching AC power to a reactive load and method of operating the same A solid state relay coupleable to first and second phase busses of an AC power source for switching power from the first and second phase busses to a load including a reactive component comprises: first and second power semiconductor switches connected in a series c... | 03/27/2007 |
| 7196435 | Solid state relay and method of operating the same A solid state relay coupleable to first and second phase busses of an AC power source for switching power from the first and second phase busses to a load comprises: first and second power semiconductor switches connected in a series circuit configuration and couple... | 03/27/2007 |
| 7187566 | Three-phase rectifier A capacitor-input type three-phase rectification circuit comprises a three-phase AC power supply (1), a diode rectifier circuit (4), and a low-frequency filter connected between the three-phase AC power supply (1) and the diode rectification cir... | 03/06/2007 |
| 7180758 | Class E amplifier with inductive clamp A power supply including an inverter receiving a DC input signal from a DC input source (11). The inverter is implemented as a single-ended inverter. Each inverter is driven by a signal source (13A, 13B), which outputs an AC signal. The output f... | 02/20/2007 |
| 7177128 | Snubber module and power conversion device It is an object of the invention to realize a snubber module which is small in size, and which can be easily handled, thereby miniaturizing a power conversion apparatus. In the invention, a snubber module (10) is configured so that twelve snubber diode... | 02/13/2007 |
| 7133268 | Current control via a variable voltage snubbing network System and method for controlling current across a load. A preferred embodiment comprises a current varying circuit (such as current varying circuit 525) that can create a sequence of voltage drops in a driver circuit (such as the driver circuit 505) c... | 11/07/2006 |
| 7102898 | Isolated drive circuitry used in switch-mode power converters A drive transformer and associated circuitry for providing power and appropriate delays to primary switches and synchronous rectifiers in switch-mode power converters. The circuitry takes advantage of the leakage inductances of the drive transformer windings as well... | 09/05/2006 |
| 7068008 | Electronic device for controlling a discharge pump driven by a synchronous electric motor with a permanent-magnet rotor The present invention relates to an electronic device (10) for controlling a discharge pump, driven by a synchronous electric motor with a permanent-magnet rotor (3) and of the type comprising at least a controller (1) receiving at its input a s... | 06/27/2006 |
| 7057358 | Electronic ballast and operating method for a gas discharge lamp In an electronic ballast the output d.c. voltage (U) of a PFC intermediate circuit (3) is to be regulated. The intermediate circuit (3) has a clocked switch (S) which is controlled by a regulation circuit (7). The regulation circuit (7) i... | 06/06/2006 |
| 7054174 | Series power switch bridge having the ability of automatic voltage-sharing A series power switch bridge having the ability of automatic voltage-sharing, which belongs to the field of electric controlling equipments. It consists of a power switch bridge and a dynamic-static voltage-sharing absorption circuit (DRwC) bridge. The very power sw... | 05/30/2006 |
| 7023713 | Voltage overshoot reduction circuits Feedback circuits capable of preventing output voltage overshoot in closed-loop DC regulated power supplies are presented. The circuits employ hysteresis at the input of an operational amplifier to improve the response time of the feedback circuits to a rising outpu... | 04/04/2006 |
| 7009852 | DC-DC converter circuits and method for reducing DC bus capacitor current An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on ... | 03/07/2006 |
| 7005829 | System for precharging a DC link in a variable speed drive A variable speed drive with a converter that is controllable to precharge a DC link is provided. The variable speed drive also includes an inverter. The converter converts a fixed line frequency, fixed line voltage AC power from an AC power source into DC power. The... | 02/28/2006 |
| 6980447 | Active snubber circuit for synchronous rectifier A snubber circuit for use with, for example, a self-driven synchronous rectifier in a power converter is disclosed. The snubber circuit, in various embodiments, captures and recirculates energy from the leakage inductance of the converter in a substantially lossless... | 12/27/2005 |
| 6975122 | Protection of an A.C. switch A circuit for detecting an overcurrent in an element in which an A.C. supply current flows, including a first comparator, assigned to the halfwaves of a first sign of the A.C. power supply, receiving on a reference input a first reference voltage setting a first one... | 12/13/2005 |
