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Matches 1 - 50 out of 71,910

Document Document Title
WO/2019/156401A1
A power conversion apparatus is disclosed. The power conversion apparatus, according to one embodiment disclosed in the present document, may comprise: an input terminal for receiving, as input, a rectified AC power; an active power fact...  
WO/2019/157105A1
A power stage output node stabilizer may be used to reduce ringing of a power stage output node of a switching DC-DC power converter. The power stage output node stabilizer may be a network of resistors and switches coupling the power st...  
WO/2019/155379A1
A flyback converter includes a primary-side circuit to receive an input voltage, a secondary-side circuit to generate an output voltage, a transformer coupling the primary-side circuit to the secondary-side circuit, a main switch coupled...  
WO/2019/155328A1
A switched-mode power controller includes a primary side controller circuit configured in a startup mode of operation to generate a fixed switching frequency pulse width modulation (PWM) signal with incrementing duty-ratio value. The PWM...  
WO/2019/154576A1
The invention relates to a device (3) for obtaining electric energy, comprising a rectifier (9) and a control device (10). The rectifier (9) comprises a first charging circuit for generating energy from a positive voltage of an energy ge...  
WO/2019/155844A1
The purpose of the present invention is to easily suppress the influence of dead time on voltage control without requiring an analysis of the specific operation status and the like of an individual motor control device by a user. A contr...  
WO/2019/155733A1
The present invention prevents noise that is generated during burst control of a resonant converter as a result of a burst cycle entering an audible-frequency cycle. A switching period of the burst cycle is constituted of three pulses: a...  
WO/2019/154590A1
The invention relates to a synchronous converter (10) comprising a transformer (11A, 11B) having a predefined winding ratio, which couples a supply-side (12) and a load side (13) of the synchronous converter (10), which are each allocate...  
WO/2019/150921A1
Provided is a technology with which it is possible to set an allowable range corresponding to an actual operation status of an on-board power supply device, and to perform anomaly determination on the basis of the allowable range. In an ...  
WO/2019/150246A1
An active clamp circuit includes an active clamp capacitor coupled in series with an active clamp switch and an active clamp controller circuit to receive an active clamp switch current that passes through the active clamp switch and to ...  
WO/2019/150900A1
The present invention provides a configuration capable of suppressing a peak value of a current flowing through an inductor when an output current is increased, while preventing an increase in the size of the inductor. An in-vehicle DC-D...  
WO/2019/150694A1
This power conversion device is provided with: a voltage conversion circuit for converting an input AC voltage to a DC voltage by means of PWM control and outputting the DC voltage; an input voltage detection circuit for detecting the AC...  
WO/2019/150595A1
A bipolar current control drive circuit for an inductive load is provided with a switching power source circuit which converts an alternating current from a power source into a smoothed direct current by way of a rectifying bridge diode ...  
WO/2019/084137A3
According to one aspect, embodiments of the invention provide a start-up circuit for a power system, the start-up circuit comprising an input configured to be coupled to a power source and to receive input DC power from the renewable ene...  
WO/2019/149989A1
A resistance unit for exercise equipment comprising a DC motor (1) and its control unit (2) applying pulse width modulation (PWM) is characterised in that a protective circuit arrangement (4) is connected in parallel with the DC motor an...  
WO/2019/149015A1
Provided are a method for controlling a power conversion circuit and a related power conversion circuit. The related power conversion circuit comprises a three-level switch circuit (3) and a resonant circuit (4). The method comprises: co...  
WO/2019/150597A1
This electric power converting device is provided with a first electric power converting circuit which converts an alternating current voltage input from an alternating-current power source into a direct current voltage and outputs the s...  
WO/2019/146209A1
This step-up type switching power supply circuit (8, 22, 32, 42, 52, 62, 72, 82) is provided with: a step-up control circuit (12) which performs a step-up operation by controlling driving of a switching element (Q4); a failure detection ...  
WO/2019/145015A1
A DC/DC power converter 100 comprises three or more capacitors 120a-d connected in series between an output terminal 112 and a ground terminal 113, the three or more capacitors 120a-d being connected in series by means of two or more cap...  
WO/2019/144241A1
Resonant converters with wide voltage gain ranges are achieved by controlling at least one of the primary side resonant circuit and the secondary side rectifier circuit. A switch is included in at least one of the primary or secondary si...  
WO/2019/146899A1
In order to solve the above technical problem, a direct current/direct current converter according to an embodiment comprises: an overcurrent protection circuit unit connected to a first terminal; a direct current stabilization circuit u...  
WO/2019/146247A1
This power supply device is provided with: at least a pair of inverter circuits connected in parallel; at least a pair of transformer circuits which respectively transform output voltages of the inverter circuits; a current transformer i...  
WO/2019/146641A1
This light-emitting element drive control device (100) comprises: a drive logic unit (113) which performs a drive control of a switch output stage (N1, D1, L1) for dropping an input voltage (VIN) to an output voltage (VOUT) and supplying...  
WO/2019/146900A1
A direct current-direct current converter, according to an embodiment, comprises: an overcurrent protection circuit unit connected to a first terminal; a direct current stabilization circuit unit connected to a second terminal; a bridge ...  
WO/2019/147566A1
To control timing for current-mode boost converters, an example device (626) includes: a first input terminal (632) to receive an input voltage (630) of a current-mode boost converter (602); a second input terminal (634) to receive an ou...  
WO/2019/146290A1
A negative voltage generation circuit 200 has: a first direct current voltage source 201 wherein a positive electrode end is connected to a first node N1 (Vin); a first diode 201 wherein the cathode is connected to a negative electrode e...  
WO/2019/145016A1
A DC/DC power converter 100 has an input terminal 111, an output terminal 112, and a ground terminal 113. The DC/DC power converter 100 comprises two capacitors 121, 122 connected in series between the output terminal 112 and the ground ...  
WO/2019/146993A1
The present invention provides a camera module comprising a liquid lens and a voltage control circuit, wherein: the liquid lens comprises a first plate including a cavity in which a conductive liquid and a non-conductive liquid are arran...  
WO/2019/143594A1
A control circuit (100) that is applicable to power supply systems that use synchronous rectification techniques is described. The control circuit provides a self-driven method of control to an active switch (142) by sensing the current ...  
WO/2019/142235A1
This vehicle power supply control circuit is provided with: a first input terminal to which a voltage output by a DC-DC converter for performing voltage conversion on a power supply voltage is supplied; a second input terminal to which t...  
WO/2019/140801A1
A charging circuit for a dual-output port, comprising a primary conversion circuit, a first secondary conversion circuit, a second secondary conversion circuit and a transformer connecting the three circuits; sampling an output voltage a...  
WO/2019/142410A1
Provided is a highly reliable electronic control device that is capable of suppressing the influence of vibration on a connection part of a printed circuit board and a transformer terminal. This electronic control device has: a substrate...  
WO/2019/142318A1
Provided is a DC/DC converter control device 50 capable of covering, with low loss, a wide range of power that can be output. The control device 50 has a selection control unit 60 and a comparison control unit 70. The selection control u...  
WO/2019/144037A1
Systems and methods for quickly charging a load capacitance to a voltage level that is a multiple of the DC input voltage are provided herein. In one approach, the load capacitance is charged by a voltage multiplication circuit, and the ...  
WO/2019/143534A1
An apparatus and method for reducing an output voltage ripple of a converter (500) are provided. The apparatus may include a controller (550) for controlling the converter, wherein the controller may include a clock generating circuit (5...  
WO/2019/143550A1
For zero voltage switching of flyback converters, an example apparatus (300) includes: a first driver (132) to operate a first switch (104) to direct a first current (170) to flow to a first winding (108) of a transformer (106); and a se...  
WO/2019/142704A1
An automotive DC-DC converter, wherein it is made easier to more suitably and more reliably perform low-loss switching in accordance with the input/output state. An automotive DC-DC converter (1), wherein a control unit (30) delays the O...  
WO/2019/142755A1
Provided are a reactor, a core member, and a power supply circuit with which the size of the reactor can be reduced. A reactor (1) is provided with a first coil (21), a second coil (22), a coupling core unit (30), a first core unit (31),...  
WO/2019/140113A1
A load switch circuit (100) includes a driver (112) to control a gate (114) of a transistor. The gate (114) enables the transistor to deliver power to a load from a power supply (130) when the gate (114) is activated. A gate slope contro...  
WO/2019/137681A1
The invention relates to a DC-DC converter (100) comprising a primary circuit (110) configured to operate on an AC voltage, which can have at least one first component with a first frequency and a second component with a second frequency...  
WO/2019/136575A1
The present invention relates to a voltage-type single-stage multi-input high frequency link inverter which has built-in parallel time-sharing selection switches, a circuit structure thereof being formed by connecting multiple common-gro...  
WO/2019/070626A3
In an example circuit (200), a first inductor (205) is coupled between a first node and a second node (290). A first PFET (215) has a source terminal coupled to the second node (290) and a drain terminal coupled to a third node (275). A ...  
WO/2019/138623A1
Provided are a power supply device, the output voltage ripple of which can be reduced and an electronic control device equipped with the power supply device. A dummy load circuit 9 is connected in parallel with a load device (5b), allows...  
WO/2019/136574A1
The present invention relates to an external parallel-connected time-sharing selective switching voltage-type single-stage multiple-input low-frequency link inverter, the circuit structure thereof is constituted by one external parallel-...  
WO/2019/139305A1
A converter comprises: a base; a first heating element disposed on one surface of the base; a second heating element disposed on one surface of the base; a bracket disposed between the first heating element and the second heating element...  
WO/2019/136662A1
An LLC controller (100) and a control method. The LLC controller (100) comprises a main controller MCU (101), a drive circuit (102), and an LLC resonant circuit (103) that are connected in sequence. The main controller MCU (101) first co...  
WO/2019/140215A1
An inductor; a first switch having a first side connected to a first voltage source (VS1); a second switch having a first side connected to a second side of the first switch (2SS1), and a second side connected to a first side of the indu...  
WO/2019/134670A1
A DC to DC converter uses a multi-level boost converter topology. In addition to an input voltage (107) being connected to an output node through a boost inductor (112) in series with a pair of diodes (141, 142), a bridge circuit generat...  
WO/2019/136299A1
The disclosed technology can be used to convert direct-current voltage and current from an input to a different or the same voltage and current at an output. One example direct-current to direct-current (DC-DC) power converter includes a...  
WO/2019/135388A1
A one-converter isolated switching power supply that: employs a forward system that makes it possible to achieve high output; and has a favorable power factor. An isolated switching power supply that has: a transistor that has a primary ...  

Matches 1 - 50 out of 71,910