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WO/2015/008429A1 |
This constant current constant voltage circuit is provided with a first resistor (R1), an N channel-type first transistor (M1), an N channel-type second transistor (M2), a P channel-type third transistor (M3), a P channel-type fourth tra...
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WO/2015/005414A1 |
The purpose of the invention is to prevent the cost from increasing even when solar power generation is used. A power supply system comprises: a VVVF inverter (11) that converts DC power to AC power and outputs an AC voltage falling with...
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WO/2015/003737A1 |
Method for operating a multistage converter for power factor correction of a polyphase mains voltage, wherein each phase has an associated phase module having a plurality of submodules which are connected in series and each have an elect...
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WO/2015/006288A1 |
Systems and techniques for supplying constant electrical power within component tolerances to a resistively changing load in an electrical circuit are described. A method includes receiving an indication of a characteristic voltage assoc...
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WO/2015/006582A1 |
A method and apparatus for ensuring continuous current flow in an output inductor by first determining the level of current flowing in an output inductor and then determining if the level of current is within a low current window relativ...
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WO/2014/210247A1 |
A power transformation system having a power stealing mode for powering a device indirectly through an electrical load connected to a power source and also has a characterization mode. The transfer of energy from the power source via the...
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WO/2014/208339A1 |
A first circuit (118) generates the sum of a forward junction voltage of a base-emitter junction of a transistor (103) and a voltage drop of a resistor (107) between a first terminal and a second terminal according to an emitter current ...
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WO/2014/206820A1 |
The invention relates to a circuit arrangement (1) for in-line supply of voltage to an electrical or electronic device (12) arranged in the region of a line (15) carrying a direct current, wherein a parallel circuit of two anti-parallel ...
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WO/2014/209378A1 |
Described is a voltage regulator with feed-forward and feedback control. Described is an apparatus which comprises: a circuit for providing power or ground supply for a target circuit in response to a control signal; and a feed-forward f...
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WO/2014/208261A1 |
Provided is a voltage regulator capable of accurately and stably controlling an output current to an overcurrent protection set value without requiring a phase compensation circuit of an element having a large area. This voltage regulato...
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WO/2014/205694A1 |
An electronic cigarette and a method for outputting a constant power of the electronic cigarette. The electronic cigarette comprises an atomizer (500). The atomizer (500) comprises a load heating wire. The electronic cigarette also compr...
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WO/2014/207969A1 |
A regulator circuit (10) is provided with: an operation amplifier (11) which receives a reference voltage (VREF) on one input terminal; an output terminal (VO), which has a load circuit (30) connected thereto, and which is feedback-conne...
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WO/2014/205089A1 |
Converter stations (104) have real and reactive power set points initially determined as part of a main loadflow analysis routinely performed on the AC power system connected to the converter stations (104). Viable real and/or reactive p...
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WO/2014/204359A2 |
The invention relates to the field of electrical engineering and can be used for supplying electric power to an electrical engineering apparatus, drives, motors, lighting networks, and power supply units of communications, automation and...
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WO/2014/205383A1 |
A wireless charging device may be worn as a wristband wearable on a users wrist. The device includes one or more energy collection components located on the wristband. The energy collection components may collect ambient energy and conve...
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WO/2014/203690A1 |
The present invention is equipped with: a constant-voltage circuit, which comprises a Zener diode and a bias current circuit that supplies a constant current to this Zener diode, and which is interposed between a reference potential and ...
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WO/2014/204637A1 |
Disclosed herein are a variety of systems and methods for estimating a source impedance value. One embodiment may include an intelligent electronic device (IED) configured to interface with an electric power distribution system. The IED ...
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WO/2014/203704A1 |
Provided is a voltage regulator whereby it is possible, without requiring a phase correction circuit element with a large area, to precisely and stably control an output current to an overcurrent protection setting value. The voltage reg...
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WO/2014/203703A1 |
Provided is a voltage regulator that enables a capacitor having a large capacitance value per unit area and having a thin oxide film to be used as a capacitor in a phase compensation circuit. This voltage regulator is equipped with a vol...
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WO/2014/204408A1 |
A method, circuits and networks have been provided for improved stable dynamic voltage regulation. The circuits include a tunable hysteretic window module, a buck converter and a voltage regulation module. The tunable hysteretic window m...
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WO/2014/201461A1 |
An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a power converter circuit that is electrically coupled to an electrical power source for rec...
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WO/2014/199240A2 |
A CMOS voltage reference is disclosed. The CMOS voltage reference may include a PTAT current bias circuit including a start-up circuit, a core module implementing high order non-linear curvature compensation and an output stage supplying...
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WO/2014/198276A1 |
The present invention relates to a power supply and a method for operating the power supply comprising a transformer connected to an excitation circuit which is adapted to be connected to a power source, which secondary winding is connec...
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WO/2014/199796A1 |
This inverter device contains the following: a voltage-increasing circuit that increases an input DC voltage, i.e. the voltage of DC power outputted by a DC power supply; an inverter circuit that converts power supplied from the voltage-...
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WO/2014/200027A1 |
Provided is a voltage generation circuit, wherein a power supply terminal (104) is connected to a voltage output terminal (105) by resistors (106, 107). The invention is provided with: a transistor (103) in which the emitter is grounded ...
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WO/2014/199816A1 |
This overcurrent-detecting circuit is provided with the following: a current-detecting resistance (3) that generates a voltage proportional to the current flowing through a switching element (Q); and a comparator (5) that detects overcur...
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WO/2014/200461A1 |
Described is an apparatus that comprises: a programmable delay line (PDL) to receive a pulse-width modulation (PWM) signal as input and to generate a first output; a selection unit operable to provide PWM signal or its inverted version a...
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WO/2014/190670A1 |
A method and a circuit for providing a zero-temperature coefficient voltage and current. The circuit comprises a first bipolar transistor (Q1), a second bipolar transistor (Q2), a first field-effect transistor (M1), a second field-effect...
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WO/2014/194064A1 |
A lighting device includes an electrical circuit for energizing an LED light source having a variable illuminating resistance. The electrical circuit includes at least one target parameter, at least one target relationship and is configu...
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WO/2014/193971A1 |
In described examples, electronic current-limiting apparatus (100) includes a pass element (110) to receive a voltage regulation control input signal (114) on a voltage regulation control input path (115) and to allow a magnitude of curr...
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WO/2014/191787A1 |
A voltage regulator (200) for digital loads (203) combines a closed loop regulation circuit (207,210) with an open loop topology. A (closed loop) transistor (210) and a bank of (open loop) transistors (218, 220, 221 ) share the same volt...
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WO/2014/192343A1 |
An inverter control device (6) provided with a stable control mode for rotationally driving a motor (5) at a rotation speed (Rn) selected from N-staged rotation speeds (R1 to RN), an acceleration control mode for increasing the rotation ...
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WO/2014/186389A1 |
A DC-to-DC power converter includes an input to receive an input voltage and an input current from a solar panel, an output to provide an output voltage and an output current, and a single-stage switched-mode power-conversion circuit, co...
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WO/2014/186296A1 |
Kickback current from a charge pump to a power management integrated circuit (PMIC) may be reduced by dissipating charge from fly and hold capacitors during mode transitions. A switch may be placed in series between the charge pump and t...
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WO/2014/185949A1 |
Described is an apparatus of a supply generator using dynamic circuit reference. The apparatus comprises: a charge pump to receive a first power supply and to generate a second power supply; a voltage regulator to operate using the secon...
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WO/2014/182781A2 |
A charge distributor comprises a charge generator configured to output a charge, a current conveyor, and a plurality of output stages. The current conveyor is configured to receive the charge from the charge generator as an input and to ...
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WO/2014/182818A1 |
A method of maximum power point tracking (MPPT) uses an MPPT algorithm to determine a switching frequency for a resonant power converter, including initializing by setting an initial boundary frequency range that is divided into initial ...
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WO/2014/182876A1 |
A differential sampling circuit (100) includes a compensation circuit (140) for cancelling harmonic content resulting from a phase imbalance. The compensation circuit (140) includes a pair of field effect transistors (142, 143) operating...
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WO/2014/177901A1 |
A low drop-out voltage regulator (100), an integrated circuit, a sensor and a method of providing a regulated voltage are provided. The low drop-out voltage regulator (100) comprises a regulated voltage driver (106, VD) for providing the...
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WO/2014/179497A1 |
The present disclosure provides techniques for power factor correction on a constant current system and also provides power line communications on the same power factor correction circuit. In one example embodiment, through controlled ch...
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WO/2014/179379A1 |
Light-emitting diodes (LEDs) generate light more efficiently than high-intensity discharge lamps or high-intensity fluorescent lamps. Driving a series of LEDs with a constant-voltage primary supply and a low- voltage LED driver keeps eff...
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WO/2014/179503A1 |
The present disclosure provides techniques for a power factor correction system having an arbitrary input waveform. The present disclosure provides two example methods of digital power factor correction that allow for a high power factor...
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WO/2014/179501A1 |
The present disclosure provides techniques for power factor correction on a constant current system without the use of a diode rectifier bridge. In an example embodiment, the present disclosure provides a power factor correction circuit ...
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WO/2014/179500A1 |
The present disclosure provides techniques for power factor correction on a constant current system. In an example embodiment, the present disclosure provides a power factor correction circuit which receives a constant current power inpu...
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WO/2014/178976A1 |
The voltage regulator includes a series switch element, and a shunt switch element, wherein a switching voltage is generated through controlled closing and opening of the series switch element and the shunt switch element. The voltage re...
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WO/2014/173379A1 |
A system for management of electric energy which is produced by photovoltaic cells which contains mutually interconnected an energy consumption control unit (2), a control unit (8) and a heating unit (9), which is equipped with a tempera...
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WO/2014/176455A1 |
A method for a power adapter to selectively provide a first and a second output voltage may comprise coupling a rectified and filtered transformer input signal to a primary winding of a transformer. The secondary winding thereof may comp...
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WO/2014/169806A1 |
A method for improving a power converter's efficiency comprises detecting an input voltage of a power converter,determining an operation mode of the power converter based upon the input voltage of the power converter and generating a plu...
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WO/2014/171805A1 |
The present invention relates to a power control system, and particularly, to an intelligent power control system capable of flexibly responding to real-time charge fluctuations to save power in stages and responding to the occurrence of...
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WO/2014/169533A1 |
A distributed new energy power generation system and a distrusted mixed maximum power tracking method. Output ends of a plurality of serially connected new energy power generation devices (1011, 1012, …, 101n) form a high-voltage direc...
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