Electricity: power supply or regulation systems patents - Monitor Patents
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Electricity: power supply or regulation systems

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
01/22/2015 > 17 patent applications in 9 patent subcategories.

20150022163 - Pfc circuit: In one embodiment, a power factor correction (PFC) circuit can include: (i) a rectifier bridge and a PFC converter coupled to an input capacitor; (ii) a harmonic wave compensation circuit configured to shift a phase of a DC input voltage provided from the rectifier bridge, where the harmonic wave compensation... Agent:

20150022164 - Power factor correction converter and control method thereof: A power factor correction converter and a control method are disclosed. A power factor correction converter includes a power conversion module, a capacitor, a third switch unit, and a fourth switch capacitor. The power conversion module includes a first switch, a second switch, a first switch unit, a second switch... Agent: Delta Electronics (shanghai) Co., Ltd.

20150022165 - Switching power supply device and pulse width modulation circuit used therein: A problem of the present invention is to provide a switching power supply device and a pulse width modulation circuit capable of operating stably in synchronization with a clock signal. To solve the problem, a pulse width modulation circuit 3A in a switching power supply device 1A includes square-wave voltage... Agent:

20150022166 - Low-dropout voltage regulator: A low-dropout voltage regulator includes a power transistor configured to receive an input voltage and to provide a regulated output voltage at an output voltage node. The power transistor includes a control electrode configured to receive a driver signal. A reference circuit is configured to generate a reference voltage. A... Agent:

20150022172 - Dc to dc converter: A DC to DC converter includes an inductor having a first terminal and a second terminal, the first terminal coupled to an input of the DC to DC converter and the second terminal being coupled to an output of the DC to DC converter. A first switch is coupled between... Agent:

20150022170 - Driver and driving control method for power converter: A driver and a driving control method for a power converter are provided. The driver includes a level shift circuit, a negative voltage generator and a first PMOS transistor. The level shift circuit provides an output signal, wherein the output signal has a first operation voltage and a second operation... Agent: Upi Semiconductor Corp.

20150022169 - Feedback/feed forward switched capacitor voltage regulation: A method of controlling a switched capacitor voltage regulator includes modifying a topology factor associated with the switched capacitor voltage regulator in response to a change in output voltage associated with the switched capacitor voltage regulator, thereby maintaining an average output voltage associated with the switched capacitor voltage regulator. The... Agent: Lsi Corporation

20150022174 - Method and apparatus for control of switched-mode power supplies: The present invention relates to nonlinear and time-variant signal processing, and, in particular, to methods, systems, and apparatus for adaptive filtering and control applicable to switching power supplies.... Agent: Avatekh, Inc.

20150022168 - Output current control in a boundary conduction mode buck converter: A switching power converter has an input voltage source. An output load is coupled to the input voltage source. An inductive element is coupled to the load. A switch is coupled to the inductive element. A control circuit is coupled to the switch and the inductive element for activating and... Agent:

20150022171 - Phase adjustment circuit of power converter, power converter, and control method thereof: A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes following steps. A delay signal is generated according to an error signal, and the error signal is associated with an output voltage of the power... Agent: Upi Semiconductor Corp.

20150022173 - Reconfigurable power regulator: The present disclosure shows ways to use multiple “integrated voltage regulator (IVR) units” to offer IVRs that can cover a wide range of specifications without having to design separate IVRs for different specifications. Instead of designing separate IVRs and paying for separate mask sets for IVRs targeting different specifications (e.g.,... Agent:

20150022167 - System and method to eliminate transition losses in dc/dc converters: Various embodiments of the invention reduce switching losses associated with existing non-zero volt switching and non-zero current switching in DC/DC converters without the need for a resonant design. Certain embodiments of the invention provide for improved efficiency by reducing switching losses related to the simultaneous presence of current and voltage... Agent:

20150022175 - Voltage limiter and use of a voltage limiter to determine values of a power semiconductor element: A voltage limiter for power components includes: a unipolar primary transistor, including a drain terminal connected to an input of the voltage limiter, a source terminal connected to an output of the voltage limiter, and a gate terminal connected to a predetermined potential. The gate terminal connected to the predetermined... Agent:

20150022176 - Power converter with inductance invariance: An improved power converter is disclosed.... Agent: Supertex, Inc.

20150022177 - Adaptive ldo regulator system and method: An adaptive low dropout voltage regulator (LDO) circuit having low power dissipation, and a method of regulating voltage while maintaining low power dissipation. Power dissipation in an LDO circuit is controlled and held to a low value using an LDO circuit that maintains a constant voltage difference between Vin and... Agent: Entropic Communications, Inc.

20150022178 - Reference voltage generating circuits: A reference voltage generating circuit. A bandgap circuit includes a current mirror circuit and an output circuit. The current mirror circuit generates a first current. The output circuit generates a reference current based on the first current. A compensation circuit is coupled to the bandgap circuit in parallel at a... Agent: Nuvoton Technology Corporation

20150022179 - Voltage transformer having a first parallel connection: A voltage transformer is described, which includes a. first parallel connection of a first capacitor having a number of N>=1 actuators connected in parallel having N-input voltages and N-input currents. A second capacitor is connected to the first parallel connection in series, the capacitor voltage being lower than or equal... Agent:

01/15/2015 > 15 patent applications in 10 patent subcategories.

20150015216 - Three-phase power conversion with power factor correction operational day and night: System and method for controlling power factor correction (PFC) for three-phase AC power conveyed via a three-phase AC power grid. Currents and voltages on the grid are monitored and used to generate waveform data enabling dynamic control of switching circuitry used in controlling one or more phase offsets between the... Agent: Hiq Solar, Inc.

20150015217 - Method for operating a power factor correction circuit: A method for operating a power factor correction circuit is provided which may include the steps of providing a plurality of N switched-mode converter circuits each comprising an nth inductor, where N is at least 2, starting a switching pulse for the nth switched-mode converter circuit when the following conditions... Agent:

20150015218 - Adjusting device of an output voltage of a switch power supply, an adjusting method thereof and an integrated chip: An adjusting device of an output voltage of a switch power supply and an adjusting method are provided. The adjusting device includes a potential setting module generating a high level signal and an adjustor being connected to the potential setting module to receive the high level signal. The adjustor includes... Agent: Delta Electronics Power (dong Guan) Co., Ltd.

20150015220 - Control for switching between pwm and pfm operation in a buck converter: Mode control circuitry is disclosed for use in a buck switching voltage regulator capable of operating in a pulse width modulation (PWM) mode and a pulse frequency modulation (PFM) mode, with the regulator including an inductor having first and second opposite inductor terminals, a first transistor switch connected between the... Agent:

20150015219 - Dc/dc converter: A DC/DC converter comprises: inductors L provided for respective channels; switching circuits provided for the respective channels; and a controller configured to change the number of channels to be activated, i.e., K, according to an amount of a load current IOUT that flows through a load, and to control the... Agent: Rohm Co., Ltd

20150015221 - Systems for controlling high frequency voltage mode switching regulators: A circuit for controlling a switching regulator is provided. The circuit includes a first input to receive a feedback signal from the switching regulator proportional to an output voltage of the switching regulator, a second input to receive a voltage reference signal, an output to be coupled to an input... Agent:

20150015222 - Low dropout voltage regulator: Voltage regulators are disclosed herein. An embodiment of a voltage regulator includes a MOS-type pass transistor, wherein a first node of the pass transistor is connectable to a voltage source and wherein a second node of the pass transistor is connected to the output of the voltage regulator. The voltage... Agent:

20150015223 - Low dropout regulator and related method: A device includes an error amplifier, a standby current source, a charging current source, a voltage divider, and a first switch. The error amplifier has a negative input terminal and a positive input terminal. The standby current source has a control terminal electrically connected to an output terminal of the... Agent:

20150015224 - Power supply circuit: A power supply circuit includes a transistor disposed between an input terminal to which an input voltage is applied and an output terminal to which an output voltage is applied, and an error amplifier configured to compare a feedback voltage varied based on the output voltage and a reference voltage,... Agent:

20150015226 - Current driver circuit: A current driver circuit includes a converter part having a switching element and converting an input voltage into an output voltage; a current detector which generates a detection signal indicative of the current of the switching element; an input voltage compensating circuit which generates a compensation signal corresponding to the... Agent: Collobo Innovations, Inc.

20150015225 - Multi-phase buck dc converter: A multi-phrase buck DC converter comprise a plurality of storage inductors, a plurality of low-side switches, a first input capacitor, a second input capacitor, a plurality of high-side switches and at least one clamping capacitor. The storage inductors are used to drive a load. The low-side switches are connected to... Agent:

20150015227 - Boost converter circuit and drive control module thereof: A boost converter and a drive control module thereof are provided. The boost converter includes a inductor, a power switch, a PWM control circuit and the drive control module. The inductor is coupled between the input terminal and the output terminal. The power switch is coupled between a inductor and... Agent:

20150015228 - Control device, digital control power supply, and control method: In a digital control power supply, a mode control unit measures a first frequency and a second frequency for a difference between a second digital value and a target value. Based on the measured first frequency and second frequency and a predetermined threshold set to the first and second frequencies,... Agent: Renesas Electronics Corporation

20150015229 - Semiconductor integrated circuit: A feedback loop, which feedbacks information of an output voltage or a load current, is provided. The feedback loop has a first mode, which digitalizes and feedbacks the information of the current voltage or the load current, and a second mode, which feedbacks the information as an analog value.... Agent: Kabushiki Kaisha Toshiba

20150015230 - Electronic device and switching circuit capable of switching between power-saving mode and normal mode: An electronic device includes a power-saving mode and a normal mode. When a mechanical button is in a first position, a main control chip outputs a logic high pulse to a switch connected to a voltage converter, such that the switch is turned on, and the voltage converter is disabled.... Agent: Hong Fu Jin Precision Industry (shezhen) Co., Ltd.

01/08/2015 > 7 patent applications in 6 patent subcategories.

20150008891 - Power supply conversion apparatus: Embodiments of the present invention disclose a power supply conversion apparatus, where a control unit generates a corresponding control signal according to a received high level pulse width modulation signal, to control a first PMOS transistor Q3, a second PMOS transistor Q4, and a second NMOS transistor Q2 to be... Agent:

20150008890 - Step-down direct-current to direct-current converter, controller and control method thereof, and electronic apparatus using same: An M-channel (M is an integer of at least two) synchronous rectification type step-down DC/DC converter is provided. A controller in the converter (i) calculates a load current on a basis of currents flowing through M inductors, (ii) dynamically changes the number K of driving phases (K is an integer... Agent:

20150008892 - Power supply unit having outputs that can be connected in parallel: A power supply unit comprises at least one first converter unit and a second converter unit. The at least one first converter unit is controlled with a first controller and supplies at a first output at least one of a first output voltage that is regulated using a first voltage... Agent:

20150008893 - Low drop-out voltage regulator: A system including a first transistor, a first capacitor and a circuit. The first transistor has a first control input and is configured to regulate an output voltage. The first capacitor is coupled at one end to the first control input and at another end to a circuit reference. The... Agent:

20150008894 - Dynamic start-up circuit for hysteretic loop switched-capacitor voltage regulator: A startup circuit for use with a SCVR circuit includes a comparator operative to generate a first control signal as a function of a comparison between an output voltage generated by the SCVR circuit and a reference voltage, the first control signal being used to disable the startup circuit. The... Agent: Lsi Corporation

20150008895 - Current mode dc-dc conversion device with fast transient response: A current mode DC-DC conversion device with fast transient response is provided. The device includes a DC-DC converter, a pulse width control unit, a current feedback circuit, a fast transient feedback circuit, a first error amplifier, an adder, and a comparator. The current feedback circuit generates a current feedback signal... Agent: Anpec Electronics Corporation

20150008896 - Constant resistance to constant current/constant power start-up: A constant current and constant power method and system for controlling current drawn from a voltage source uses an electronic load device such as one or more field effect transistors connected with the voltage source via a switch. The load device is configured as a resistance device. A constant resistance,... Agent:

01/01/2015 > 25 patent applications in 11 patent subcategories.

20150002107 - Reducing current harmonics at light loads: Reducing current harmonics at light loads is disclosed. In an example, a method includes increasing output voltage of a boost converter to reach a higher potential in a low power mode. After reaching the higher potential, the method includes dropping a set point for the output voltage.... Agent:

20150002108 - Bridgeless power factor correction boost converter: A bridgeless power factor correction (PFC) boost converter is provided that includes a first circuit, an output terminal, a second circuit, and a controller. The first circuit includes a first inductor, a first switch, and a first inductor switch. The output terminal is connected in parallel to the first switch.... Agent: Hyundai Motor Company

20150002109 - Transition mode pfc power converter adapted to switch from dcm to ccm under high load and control method: A transition mode power factor correction converter comprising a boost inductor, a switch, a diode, and output tank capacitor, has circuit means of limitation of the off-time interval of the switch to a fraction of the off-time interval, “complementary” to the on-time interval that is normally controlled for regulating the... Agent:

20150002111 - Circuit arrangement for reducing power loss in the case of an active electrical current output of a field device: The invention relates to a circuit arrangement for reducing power loss in the case of an active electrical current output of a field device for determining and/or influencing a process variable, wherein the process variable is represented via a selectable electrical current value, comprising an external voltage supply, a voltage... Agent:

20150002110 - Voltage regulator: A method and apparatus are provided. The apparatus comprises a plurality of devices forming a positive feedback loop for driving a regulated output voltage towards a reference voltage. Device ratios of at least two of the plurality of devices are set such that the positive feedback loop is stable.... Agent:

20150002116 - Dc to dc converter and method to operate a dc to dc converter: A DC to DC converter including a buck converter, a boost converter, and a control unit, wherein the control unit is arranged to calculate an error voltage of the buck converter Verr_buck based on a feedback output voltage Vout_FB of the DC to DC converter and a reference voltage of... Agent: Freescale Semiconductor, Inc.

20150002112 - Multiphase regulator with self-test: A multiphase regulator includes a plurality of output phases, each operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. The multiphase regulator further includes a controller operable to regulate a voltage delivered to the... Agent:

20150002113 - Power supply circuit: A power supply circuit includes a first switch, a second switch, an inductor, a series circuit, a second resistor, and a control signal circuit. The first and second switches are connected between a first terminal and a second terminal and to each other at an output node. The inductor is... Agent: Kabushiki Kaisha Toshiba

20150002115 - Series-capacitor buck converter multiphase controller: A series-capacitor adaptively switched power conversion system includes, for example, a series-capacitor buck converter overlapping controller. The series-capacitor buck converter overlapping controller is arranged to provide reduced switching losses and improved system efficiency while the switched power conversion system is operating in a discontinuous conduction mode (DCM). While operating in... Agent:

20150002114 - Voltage regulator device and control method thereof: A voltage regulator device includes at least one output unit, a current sensing unit, a control unit, at least one transistor driving unit and a pulse width modulation unit. The output unit outputs an output signal. The output unit includes a first transistor, a second transistor and an energy storage... Agent:

20150002120 - Adjustment circuit and electronic device thereof: An electronic device includes a power supply, a switching element, and an adjustment circuit. The power supply provides a working voltage to the adjustment circuit. The switching element is capable of generating heat when operating. The adjustment circuit is connected between the power supply and the switching element, and includes... Agent: Hong Fu Jin Precision Industry (shenzhen) Co., Ltd.

20150002117 - Digital serializer based pulsewidth modulator controller: Various exemplary embodiments relate to a method performed by a pulsewidth modulation (PWM) controller, the method including: receiving a control input including PWM parameters; producing inputs to a digital serializer, wherein the inputs result in a digital serializer output that is pulsewidth modulated according to the PWM parameters; receiving a... Agent:

20150002118 - Efficient high voltage bias regulation circuit: A high voltage DC-DC voltage converted includes a charge pump section and an op-amp section. During ramp-up, the charge pump can drive the load and the op-amp is in a unity gain configuration until the output level reaches the regulation level. While under regulation, when the load current is small... Agent: Sandisk Technologies Inc.

20150002119 - Power supply regulator: A power supply that includes positive and negative floating power supply rails. Laterally diffused metal oxide semiconductors (LDMOS) regulate the output voltage of the positive and negative floating power supply rails. In particular, an LDMOS can be configured as a common gate amplifier at the output of the power supply... Agent:

20150002121 - Loss optimization control for dc-to-dc converter: A DC-to-DC, converter that can reduce a loss of the converter is provided. The DC-to-DC converter includes an inductor, a switching transistor connected to the inductor, and a controller that drives the transistor. The controller acquires a next step reference value for the DC-to-DC converter in a sampling time Ta.... Agent: Toyota Jidosha Kabushiki Kaisha

20150002122 - Switched-mode power supply using variable bias current: There is provided a switched-mode power supply including: a PWM control unit generating a clock signal having pulse widths of the clock depending on a load to provide a path switching signal; a clock counter counting the clock signal to generate a control signal; a current source generating a current;... Agent: Samsung Electro-mechanics Co., Ltd.

20150002123 - Circuit: There is provided a circuit including a capacitor, a current source configured to supply a current to the capacitor, a comparator configured to output a result of comparison between a voltage stored in the capacitor and a predetermined voltage, and a switch section configured to intermittently which is caused to... Agent:

20150002124 - Dc-dc converter: A DC-DC converter includes a voltage converter circuit having an FET 1, a short-circuit protection FET 3 that blocks a large current from flowing in the voltage converter circuit when a short-circuit failure occurs in the FET 1 or capacitors, and a detector that detects a short-circuit failure in the... Agent: Omron Automotive Electronics Co., Ltd.

20150002125 - Dc-dc converter: A DC-DC converter that is capable of cutting off a large current flowing in a voltage converter circuit when a short-circuit failure occurs in a switching element of the voltage converter circuit includes a voltage converter circuit having a first switching element, a reverse connection protection second switching element that... Agent: Omron Automotive Electronics Co., Ltd.

20150002126 - Controller with thermal balance and control method thereof for multi-phase switching converters: Controller with thermal balance and method thereof for controlling a multi-phase switching converter with a plurality of switching circuits. The controller having a bias current generator that generates a plurality of bias current signals; a temperature balance modulating circuit that generates a plurality of on time signals based on the... Agent:

20150002128 - A soft-switched voltage clamp tapped-inductor step-up boost converter: A apparatus provides a voltage clamp step-up boost converter that is capable of reducing voltage stress on a switch and a diode of the boost converter without using a dissipative snubber and that is capable of reducing a switching loss while maintaining a high input-to-output boost ratio.... Agent: Inter. M Corporation

20150002127 - Maximum power point tracking method and apparatus: A maximum power point tracking (MPPT) apparatus and a MPPT method are disclosed. A converter uses an inductor therein to perform power conversion operations according to a gating signal so as to convert an input electrical energy into an output electrical energy to a load. A controller monitors the voltage... Agent: Industrial Technology Research Institute

20150002129 - Voltage converter inductor having a nonlinear inductance value: Single phase inductors have non-linear inductance values, and M-phase coupled inductors having non-linear leakage inductance values. Each inductor includes, for example, at least one of the following: a saturable magnetic element, a gap of non-uniform thickness, a core formed of a distributed gap material, or a non-homogeneous core. A DC-to-DC... Agent:

20150002130 - Bandgap circuit for current and voltage: A simple bandgap current generator combines a PTAT (proportional to absolute temperature) base-emitter voltage (VBE) measured across two binary junction devices (ΔVBE=VBE1-VBE2) with a current that is varied by an nWell resistor with a positive temperature coefficient to produce a CTAT (complementary to absolute temperature) current instead of PTAT reference... Agent:

20150002131 - Reference-voltage circuit: Provided is a reference voltage circuit capable of adjusting an arbitrary output voltage to have arbitrary temperature characteristics. The reference voltage circuit includes: a reference current generating circuit configured to convert a difference between forward voltages of a plurality of PN junction elements into current to generate a first current;... Agent:

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