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WO/2023/241424A1 |
An elevator contracting brake control circuit, and an elevator. The elevator contracting brake control circuit comprises a safety control module (10), a power source conversion circuit (20) and a microprocessor (30), wherein a controlled...
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WO/2023/243847A1 |
An electronic device for wirelessly receiving power, according to various embodiments, comprises: a coil; a rectifier circuit comprising a plurality of switches; a charging circuit; and a control circuit, wherein the control circuit may ...
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WO/2023/242911A1 |
A switching modulation circuit (11) generates a first control signal with a specific duty ratio. A delay circuit (16) delays the first control signal to generate a second control signal. A zero cross detector (12) detects whether the out...
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WO/2023/243515A1 |
An indoor unit (10) of an air conditioner comprises a rectifying circuit (34), a switching power source circuit (37), a first board (31), and a second board (32). The rectifying circuit (34) rectifies an alternating current voltage and o...
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WO/2023/244253A1 |
A variable frequency drive system includes a power converter (160a) with a plurality of power cells (16al-16c3) supplying power to one or more output phases, each power cell having multiple switching devices, a plurality of sensors monit...
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WO/2023/243115A1 |
Provided is a power conversion device that can suppress fluctuations in output voltage caused by sudden changes in load. Therefore, the power conversion device 100 comprises: an AC-DC converter 101 that converts AC power into first DC po...
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WO/2023/242799A1 |
An AC-to-AC converter is described that comprises input terminals for connection to an AC source, output terminals for connection to a load, a transformer having a primary winding and a secondary winding, a primary-side switch, a pair of...
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WO/2023/243050A1 |
A switching regulator according to the present invention comprises: a comparator that compares a switching voltage corresponding to an inductor current flowing from the switching regulator to an inductor with a prescribed reference volta...
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WO/2023/217278A9 |
Provided in the present application is a direct-current conversion circuit, which is used for providing direct-current conversion between a first direct-current voltage and a second direct-current voltage. The direct-current conversion c...
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WO/2023/242486A1 |
The invention relates to an onboard charger (OBC) comprising the following modules: - a PFC power factor corrector (2); - a DC link capacitor (3); - a transformer (4) connected to the capacitor (3), the transformer having a primary windi...
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WO/2023/242836A1 |
A grid-connected converter comprising a power factor controller (PFC) for control of flow of power from a grid supply to a load via a DC link, by switching of at least one active component, which converter including: a voltage controller...
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WO/2023/243770A1 |
A DC-DC converter of an energy-harvesting system according to an embodiment of the present invention is connected to a plurality of energy-generating modules that collect and convert external energy to electric energy, and controls the l...
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WO/2023/243321A1 |
The purpose of the present invention is to achieve high efficiency and high efficiency. In the present invention, a converter device (1) comprises a rectifier (2), a half bridge inverter (3), an input inductor (Lin), a transformer (Tr1),...
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WO/2023/048790A9 |
Techniques and mechanisms for generating an output voltage with a switched capacitor voltage converter (SCVR). In an embodiment, the SCVR comprises converter cores which are coupled in parallel via multiple buses including a first bus, w...
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WO/2023/238549A1 |
Provided is a light-emitting element drive system (50) comprising: a reader light-emitting element drive device (10) having a DC/DC controller (1) configured to be able to drive light-emitting elements (A1 to A24) and be able to control ...
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WO/2023/238499A1 |
According to the present invention, a power management circuit has: a first terminal; a second terminal; a third terminal; a first step-down DC/DC converter configured to receive a first voltage applied to the first terminal; a fist line...
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WO/2023/239850A1 |
In an example, a circuit (100) includes an emulated current generator (114) configured to provide an emulated current signal responsive to a charge current and a discharge current. The emulated current signal can be representative of an ...
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WO/2023/238642A1 |
A power supply device (100) comprises a plurality of power supply units (10), each power supply unit being configured to be integrable. The power supply device comprises an integration portion (61, 62, 200, 201, 210, 211, 220, 221, 230, ...
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WO/2023/238602A1 |
A power conversion device (14) has low-voltage side terminals (TL1, TL2) and high-voltage side terminals (TH1, TH2). The power conversion device comprises: a step-up operation unit that performs a step-up operation for stepping up a volt...
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WO/2023/238241A1 |
Provided is a switching regulator that generates a comparison result signal relating to an input/output voltage difference even when there is no terminal for monitoring an output voltage. The switching regulator of the present invention ...
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WO/2023/238293A1 |
This air conditioner (2) for performing air conditioning control comprises: one or more switching elements included in at least one power converter among one or more power converters that perform power conversion; a waveform-shape-changi...
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WO/2023/236729A1 |
The present application provides a converter and an electronic device. The converter comprises an input end, a first inverter circuit, a first transformer, a first rectifier circuit, and an output end; the first transformer comprises a f...
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WO/2023/236668A1 |
Disclosed in the present invention is an adaptive switch-cycle control method applied to a switch power supply. The method comprises: setting a voltage threshold for bus voltages and forming voltage partitions; acquiring a bus voltage an...
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WO/2023/238201A1 |
A driver circuit (13) operates switching elements (Q1, Q2) with a constant on-time control. A monitoring circuit generates a first control signal indicating whether a DC/DC converter (1) is in a steady state or in an abnormal state. An o...
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WO/2023/238296A1 |
This electric power conversion device (1) comprises an inverter (310) that has switching elements (311a–311f) that are housed in a semiconductor package (342), and supplies electric power by the inverter (310) to a motor (314) that dri...
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WO/2023/237057A1 |
The embodiments of the present invention belong to the field of power electronics. Disclosed is a partial power regulation-type converter. The converter comprises: a power supply unit, which is configured to provide a partial power outpu...
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WO/2023/239330A1 |
The present invention relates to a transformerless, high efficiency, three-level, high power density, wide input voltage range, single-phase DC/AC inverter.
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WO/2023/231633A1 |
Embodiments of the present application disclose a driver circuit of a valley-fill circuit, a power supply module and an electronic device. An input voltage end of the driver circuit is used for receiving a power supply provided by a prim...
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WO/2023/232495A1 |
The present invention provides a voltage conversion circuit, comprising: multiple voltage conversion branches connected in parallel, each voltage conversion branch comprising: an inductor and a switching module, an input end of the induc...
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WO/2023/234898A1 |
The invention relates to a transformerless inverter with high efficiency, low volume, low weight, high power density, wide input voltage range, ease of application for control and modulation algorithms, which can reduce leakage currents ...
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WO/2023/235228A1 |
Methods and devices for sensing current through a power converter circuit are presented. According to one aspect, currents through high-/low-side transistors are sensed via respective reduced size replica transistors. According to anothe...
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WO/2023/233104A1 |
One aspect of the invention relates to a device for powering a synchronous motor comprising a control unit (U1) for controlling transistors of a voltage sine wave inverter (1) comprising an inductor (Li) connecting a first and second nod...
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WO/2023/230920A1 |
Provided in the present application are a DC/DC conversion circuit, a DC/DC converter and a power supply device. The DC/DC conversion circuit comprises a first end, a second end and a first resonance unit, the first resonance unit being ...
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WO/2023/231201A1 |
A control system for a burst mode of a switching power supply, and a PWM controller, which relate to the technical field of power supplies. The control system comprises: a feedback signal detection circuit (10), which is used for detecti...
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WO/2023/231592A1 |
A battery circuit, a control method for a battery circuit, and a vehicle. The battery circuit comprises: a power source end, a first battery pack, a second battery pack of a different type from the first battery pack, a voltage transform...
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WO/2023/231401A1 |
Disclosed in the present application are a non-isolated DCDC converter, a power supply, and a communication device. The non-isolated DCDC converter comprises: a magnetic material, a switching transistor and a capacitor. The switching tra...
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WO/2023/232581A1 |
Disclosed is a synchronous isolated LED converter (1). The converter (1) comprises a main transformer (111, 112, 113), a voltage sensing circuit (14), a controller (16), an ancillary transformer (191. 192), and a switch (20). The main tr...
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WO/2023/233912A1 |
This voltage converter converts DC voltage between an input line and an output line. The voltage converter comprises: a variable inductor device disposed between the input line and the output line; a switching device disposed between the...
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WO/2023/231318A1 |
The present invention provides a voltage holding device for an unmanned vehicle and the unmanned vehicle, and can be applied to the technical field of unmanned driving. The device comprises: a first field effect transistor, comprising a ...
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WO/2023/234844A1 |
A magnetic structure (60) comprises input and output stages (61, 62) comprising a yoke (61c, 62c) and at least two cores (61a, 62a), and at least one intermediate stage (63) with cores (63a) magnetically coupled to the input and output s...
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WO/2023/233825A1 |
A switching control device according to the present invention includes: a voltage detecting unit that detects the induced voltage generated at a connection node between a primary winding and a switching element or at an auxiliary winding...
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WO/2023/235510A1 |
An integrated circuit is described. This integrated circuit may include a control circuit. During operation, the control circuit may detect when an output current provided to a load exceeds a current threshold. Moreover, in response to t...
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WO/2023/229147A1 |
A display device may include: a display; a processor for processing image data to be displayed on the display; a transformer including a primary winding and a plurality of secondary windings; a first rectifier connected to a first windin...
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WO/2023/226364A1 |
The present application provides a charging device and a charging control method, which are used for effectively reducing circuit costs of the charging device and effectively simplifying the control flow of series connection or parallel ...
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WO/2023/227919A1 |
A method for direct current (DC)-DC conversion. The method includes converting an input voltage to a set of output voltages by selecting a first output capacitor in a set of output capacitors of a DC-DC converter, charging an inductor of...
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WO/2023/228635A1 |
A semiconductor device 10 comprises, for example, the following: a first driver 163 configured to drive an output element M1 that forms a switch output stage SWO; at least a portion of a bootstrap circuit BST configured to generate a boo...
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WO/2023/228508A1 |
This power supply device is configured to be connected between a first DC power supply and a second DC power supply. The power supply device comprises: a first switch configured such that one end thereof is connected to the first DC powe...
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WO/2023/226896A1 |
The present application provides a control circuit of a power module, the power module and an electronic device. The power module comprises an active clamp flyback converter circuit and a rectifying circuit. The active clamp flyback conv...
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WO/2023/226724A1 |
Provided in the present invention are a method for improving the efficiency of a micro-inverter, and a dual-active-bridge-type micro-inverter. The method comprises: performing power modulation mode switching of a dual-active-bridge-type ...
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WO/2023/229360A1 |
Disclosed is an interface device. The interface device includes a substrate that interfaces signals between an electronic device and a display device, wherein the substrate includes a first connector connected to the electronic device, a...
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