67 results about "Coupling inductor" patented technology

An apparatus for wireless communications includes a power amplifier, a low-noise amplifier, a power detector, and a transformer. The transformer includes a first inductor coupled to an output of the power amplifier, and a second inductor coupled to an antenna, wherein the second inductor is magnetically coupled with the first inductor. The transformer also includes a third inductor coupled to an input of the low-noise amplifier, wherein the third inductor is magnetically coupled with the second inductor. The transformer also includes a coupling inductor coupled to an input of the power detector, wherein the coupling inductor is magnetically coupled with at least one of the first inductor and the second inductor.

A control device includes a PWM control unit, a current detector, and a short circuit detector. The PWM control unit outputs a control signal to the driver of a multiphase power supply in which the inductors of each phase are configured by a coupled inductor, and controls an on / off of the driver. The current detector detects the current flowing through the driver. The short circuit detector detects an inter-inductor short circuit based on a switching cycle of the driver and a current value detected by the current detector. The short circuit detector determines that an inter-inductor short circuit occurs between phases including a given phase when a differential value of the current value corresponding to the given phase is positive and greater than or equal to a threshold value during an off period of the driver in the given phase.

Various embodiments disclose a cross-inductor voltage regulator comprising a first switching circuit configuration pair, the first switching circuit configuration pair comprising a first set of switching circuits, a first compensating coupled inductor coupled to the first set of switching circuits, a second set of switching circuits, and a second compensating coupled inductor coupled to the second set of switching circuits, wherein the first compensating coupled inductor comprises a first winding of a compensating coupled transformer and the second compensating coupled inductor is a second winding of the compensating coupled transformer.

This invention discloses a non-isolated modular multilevel converter for energy storage and its control method, relating to the field of medium-voltage direct transmission of energy storage. The converter includes a bridge arm composed of multiple cascaded basic module units and a three-winding coupled inductor array. The basic module unit includes a half-bridge and capacitor unit and an additional half-bridge unit. The three-winding coupled inductor array interconnects the basic module units at corresponding positions in the three-phase horizontal direction and connects them to a battery pack. This invention eliminates the need for complex circulating current suppression strategies; it only requires basic voltage and current dual closed-loop control to naturally eliminate low-frequency voltage fluctuations in submodule capacitors and second-harmonic circulating currents in the bridge arm. This significantly reduces the size of the submodule capacitors, increases the system power density, reduces switching device losses and current stress, simplifies the control system, and improves dynamic response speed and fault safety.

This invention discloses a two-phase coupled inductor, relating to the field of inductor technology. The invention includes a cylindrical housing with a support plate inside, on which the two-phase coupled inductor body is mounted. Several through holes are formed on the support plate surrounding the two-phase coupled inductor body. A fan is mounted on the bottom side of the housing, and several air inlets are formed on the bottom sidewall of the housing. A top cover is fitted onto the top of the housing, and several rings of heat dissipation holes are formed on the top cover. Each ring of heat dissipation holes includes a ring of ventilation holes on the top cover. A receiving groove is provided inside the top cover, corresponding to each ring of heat dissipation holes. This invention draws in cooling air through the fan and air inlets at the bottom of the housing. The airflow passes through the through holes on the support plate and is directly blown onto the two-phase coupled inductor body for forced cooling. The hot air rises to the top and is discharged through the rings of heat dissipation holes on the top cover. This bottom-in, top-out airflow path conforms to the principle of hot air rising, resulting in high heat dissipation efficiency.

This invention discloses a millimeter-wave broadband high harmonic suppression tripler, comprising an input matching network, a time-domain shaping tripler unit, and a differential common-source output stage. The proposed time-domain shaping tripler unit employs transistor pairs with different gate widths and bias voltages to superimpose two sets of voltage signals of different amplitudes in the time domain, thereby enhancing the inherent harmonic suppression of the tripler unit. Furthermore, by connecting a common-mode impedance control in series at the center tap of the primary inductor coil of the output transformer of the tripler unit, the output power of the third harmonic is further improved. The input matching network achieves single-ended to differential conversion, with its primary and secondary coil center taps grounded and open-circuited respectively in a counterintuitive manner, improving differential-mode balance and common-mode stability. Simultaneously, by using a series-coupled inductor, the quality factor of the transistor input impedance is reduced, improving the bandwidth performance of the tripler.

This invention discloses a multi-port series circuit breaker with a shared injection unit and its control method. The circuit breaker includes a shared voltage injection unit, a fault selection unit, an integrated coupling inductor unit, and a multi-port main current-carrying branch. Multiple DC lines share a single voltage injection unit through the fault selection unit. The voltage injection unit injects reverse voltage into the faulty line through a pulse transformer to achieve active limitation and interruption of the fault current. This invention transforms passive commutation into series active current-limiting interruption. By sharing an active injection unit across multiple ports, the number of fully controlled switching transistors is reduced, resulting in fast interruption speed, low current loss, and low cost.

This invention relates to an active dual-switched capacitor coupled DC / DC converter with a reverse magnetic winding, belonging to the field of optics. It solves the problem that existing DC converters cannot simultaneously achieve low turns ratios and high voltage gain. The invention combines inductors, capacitors, diodes, and coupled inductors (N1, N2) in a specific series-cross connection to form an integrated high-gain unit. Through a reverse-coupled inductor voltage multiplier circuit (composed of multi-winding coupled inductors N1 and N2 connected in reverse, diode D1, and capacitor C1) and an active dual-switched capacitor structure (composed of power switches S1 and S2, capacitor C2, and diodes D2 and D3), the proposed converter can generate high voltage gain at low turns ratios. This invention is primarily applied in high boost ratio DC power conversion applications.

This invention discloses a miniaturized, highly selective bandpass filter chip for multipath transmission, comprising an input port, an output port, a port matching network, five octagonal inductors (L1~L5), seven MIM capacitors (C1~C7), and one ground inductor Ls1. It includes a conventional filtering path (Path A) and a compact coupling path (Path B) connected in parallel between the input and output ports. The port matching network is composed of capacitors C4 and C7. Path A forms three resonant units by connecting capacitors C1~C3 in parallel with inductors L1~L3, which, together with capacitor C5, inductor L4, and ground inductor Ls1, constitute a basic bandpass structure and generate low-frequency transmission zeros. Path B forms a compact coupling network by connecting symmetrically coupled inductor L5 in parallel with capacitor C6, utilizing mutual inductance coupling to generate additional high-frequency transmission zeros. The filter chip is implemented using GaAs-based IPD technology to achieve fully lumped component integration, possessing advantages such as compact structure, high selectivity, stable performance, and high integration density.

A generator with a regeneration device. The electrosurgical generator according to the invention includes an oscillating circuit excited by means of an excitation circuit having a frequency preferably close to its resonant frequency, wherein the oscillation should be periodically interrupted. This can be done, for example, in situations where a pulse-pause modulation of a radio frequency voltage must be created, the fundamental frequency of which, for example, 350 kHz or 500 kHz, can be modulated with a modulation frequency of, for example, 50 kHz. To stop the oscillation in the generator's oscillating circuit as abruptly as possible without losing the energy stored in the oscillating circuit, a regeneration circuit is provided, implemented by means of a voltage multiplier circuit. Compared to a boost converter coupled inductor, it has the advantage of providing a low capacitive load to the oscillating circuit, especially because it is only electrically effectively connected to the oscillating circuit via a switch during the regeneration phase. This concept allows for efficient energy regeneration and therefore allows for precise amplitude modulation of the radio frequency voltage, particularly square wave modulation (on-off-switch).

This invention discloses an inductor module, a resonant cavity structure, an oscillator, a chip, and a device, belonging to the field of integrated circuit technology. The inductor module includes 10 inductors in a symmetrical structure; inductors L1, L9, and L4 are connected in series in sequence, with one end of inductor L1 serving as port 1; one end of inductor L4 serving as port 2; and inductors L2, L... 10 Inductors L2 and L3 are connected in series in sequence, with one end of L2 serving as port 3; one end of L3 serving as port 4; and inductors L5 and L6... 10 Inductors L5, L6, L7, and L8 are connected in series in sequence, with one end of L5 serving as port 5 and one end of L8 serving as port 6. Inductors L6, L9, and L7 are also connected in series in sequence, with one end of L6 serving as port 7 and one end of L8 serving as port 8. Inductors L1 and L2 are coupled together, inductors L3 and L4 are coupled together, inductors L5 and L6 are coupled together, inductors L7 and L8 are coupled together, and inductors L9 and L1 are coupled together. 10 Mutual coupling. This invention employs a symmetrical inductor topology, solving the problem of asymmetry between the core inductor and the core inductor in a quad-core processor.

The application discloses a coupled inductor super-high gain DC-DC converter, a device and a control method, and belongs to the technical field of renewable energy storage grid connection, wherein the DC-DC converter integrates quadratic structure, switched capacitor, three-winding coupled inductor and voltage multiplication unit technology, realizes super-high voltage gain without relying on extreme duty cycle, and provides three degrees of freedom of flexibly adjustable output voltage; the coupled inductor super-high gain DC-DC conversion device comprises a voltage sampling sensor, a controller, a PWM signal generator and the DC-DC converter; the control method is applied to the DC-DC conversion device. In addition, while obtaining high voltage gain, the DC-DC converter can effectively reduce the voltage stress borne by the switch tube, and is suitable for occasions with high requirements for high voltage conversion performance in a renewable energy power generation system.

A non-isolated DC-to-DC switching hybrid converter is implemented using a cross-coupled series-capacitor quadruple step-down buck converter topology. In some embodiments, the DC-to-DC switching hybrid converter includes a switched-capacitor converter circuit and incorporates a zero-voltage switching network to implement soft switching and a coupled inductor to realize a fixed step-down ratio. The hybrid converter is capable of supporting a high step-down ratio (such as 8:1) while providing high efficiency. In other embodiments, the DC-to-DC switching hybrid converter incorporates a transformer in place of the coupled inductor to further increase the step-down ratio.

A multiphase or high-level coupled inductor includes an iron core, which includes first and second side surfaces opposite to each other and a third side surface between the first and second side surfaces, the iron core including receiving portions spaced from each other; and coil windings each including first and second windings and respectively arranged on the receiving portions. The first winding is formed with a hollowed portion having a first length and a first width. The first winding includes first and second bend portions, which are bent in different directions. The first bend portion is exposed on the second side surface of the iron core. The second winding is arranged in the hollowed portion of the first winding and has a second length and a second width. The first length is greater than the second length, and the first width is greater than the second width.

An inductive circuit includes a coupled inductor including a magnetic core including a first core rail, a second core rail, and multiple identical core legs between the first core rail and the second core rail, wherein the core legs include an identical gap; multiple identical inductive phase stages, wherein each inductive phase stage includes a core leg and an identical phase winding around the core leg, wherein each phase winding includes a first terminal connected to the input node and a second terminal connected to the output node; and an inductive linking stage identical to the multiple inductive phase stages, wherein a first terminal of a phase winding of the inductive linking stage is connected to the input node and a second terminal of the phase winding of the linking stage is connected to the linking inductance node.

According to an aspect of a coupled inductor based power device circuit topology of the present disclosure, an uninterruptible power supply (UPS) system is provided. The UPS system includes a first input configured to be coupled to an input power source, a second input configured to be coupled to an energy storage device, an output configured to provide output power, a power conversion circuit (PCC) configured to convert power received from at least one of the input power source or the energy storage device, an output circuit coupled to the PCC and the output, and a controller. The PCC includes a first inductor and a second inductor magnetically coupled with the first inductor. The controller is configured to control the PCC to provide direct current power originating from the input power source to the output circuit through the first inductor and to provide direct current power originating from the energy storage device to the output circuit through the first inductor and the second inductor.

This invention discloses a current-multiplexed millimeter-wave variable gain amplifier based on interstage mutual coupling inductor matching. It employs a two-stage cascaded structure, including an input matching network, a low-noise module, an interstage matching network, a variable gain module, and an output matching network. The input terminal of the low-noise module is connected to the output terminal of the input matching network. The low-noise module and the variable gain module are connected through the interstage matching network. The output terminal of the variable gain module is connected to the input terminal of the output matching network. This invention overcomes the problems of high noise figure, high power consumption, and high phase error in existing variable gain amplifiers.

The present invention relates to the technical field of radio frequency, and disclosed is a voltage-controlled oscillator having a wide frequency tuning range, solving the problem in the prior art that oscillators have a narrow and discontinuous output frequency tuning range. The voltage-controlled oscillator comprises a passive topology module, an active negative-resistance module, a frequency tuning module, and a mode switching module; the passive topology module comprises a plurality of mutually coupled inductors; the plurality of inductors are mutually coupled to provide a required impedance peak; the plurality of inductors include one figure-eight inductor coil, a first toroidal inductor coil, and a second toroidal inductor coil; the figure-eight inductor coil comprises a first inductor coil, a second inductor coil, and a common inductor coil; the frequency tuning module is used for tuning a corresponding frequency of the impedance peak; the active negative-resistance module is used for providing a signal gain for the passive topology module so as to satisfy an oscillation condition; and the mode switching module is used for switching an operating mode of the oscillator. The oscillator of the present invention has four continuous operating frequency bands, achieving a wider output frequency tuning range.

This invention relates to a symmetrical voltage doubler type high-gain DC-DC boost converter, belonging to the technical field of power electronic converters. It solves the problem that traditional symmetrical converters cannot simultaneously achieve simple circuit structure, high boost capability, and electromagnetic interference immunity. This invention combines capacitors, diodes, and coupled inductors in a specific connection method of symmetrical interleaved parallel connection and magnetic integration to form an integrated, miniaturized high-gain conversion unit, balancing structural simplification and performance optimization. This invention is primarily applied in DC power conversion applications with high boost ratios.

The present disclosure belongs to the technical field of power electronics and discloses a bidirectional converter. The bidirectional converter includes a capacitor C5, wherein one terminal of the capacitor C5 is connected to one terminal of an inductor L1, the other terminal of the inductor L1 is connected to a drain of an MOS transistor Q1 and one terminal of a capacitor C1, the other terminal of the capacitor C1 is connected to a pin 1 of a transformer T, and the other terminal of the capacitor C5 is connected to one terminal of a capacitor C6, a source of the MOS transistor Q1, a drain of an MOS transistor Q2, a pin 2 of the transformer T, and a pin 3 of the transformer T. The present disclosure has the following beneficial effects: in an application scenario where a high voltage is input or output, the circuit can realize isolated bidirectional conversion with a relatively low voltage-withstanding switching transistor, coupled inductors reduce input and output ripple currents, and by using a midpoint tapped transformer, input and output can realize automatic midpoint balance, so that the circuit can serve as a direct current circuit at the midpoint of an isolation belt of a three-level inverse DC / AC.

The utility model discloses a high accuracy air gap double coupling inductor based on integrated die casting belongs to inductance technical field. The inductor includes the magnetic core casing through integrated die casting, and its first magnetic core and second magnetic core are integrated structure, and the magnetic core casing uses the cutting machine of dividing sheet and cuts the high accuracy air gap, and the first coil and second coil are nested in the magnetic core accommodating cavity, and the pin is exposed. The magnetic core material adopts the mixed pressing of iron nickel powder, iron silicon aluminum powder and glue, and the coil main part is the copper sheet with insulating layer, and the pin exposed part is through the stamping, the bending forming. The utility model discloses through integrated die casting to realize that the first magnetic core and second magnetic core are integrated structure, has promoted the magnetic shielding effect, and through the high accuracy cutting air gap has improved the inductance stability significantly.

The utility model discloses a coil assembly and TLVR coupling inductor belong to electronic component technical field. Coil assembly includes primary coil and secondary coil, and primary coil includes first pin, and secondary coil includes second pin, and the end of first pin is equipped with first terminal PIN leg and the first insulating part of ring and is equipped with the first terminal PIN leg all around, and the end of second pin is equipped with second terminal PIN leg and the second insulating part of ring and is equipped with second terminal PIN leg all around, and first terminal PIN leg and second terminal PIN leg are all used for conducting connection, prevent the problem of electrical short circuit or voltage drop.

This invention provides an ultra-fast commutation square-wave AC welding power supply, comprising: a rectifier bridge circuit for rectifying AC to DC; a filter and voltage regulator circuit for eliminating high-order ripple and obtaining smooth DC; a full-bridge inverter circuit for converting DC to high-frequency AC; a high-frequency transformer for isolation and voltage reduction; a secondary full-bridge rectifier circuit for converting high-frequency AC to DC; a coupling inductor for coupling; a half-bridge inverter circuit for converting DC to AC square waves; and a constant voltage clamping circuit; the load is connected between the midpoint of the half-bridge inverter circuit and the center tap of the high-frequency transformer. This power supply enables faster commutation of square-wave AC current and energy recovery during the commutation process, thereby improving the stability of the AC welding process and the conversion efficiency of the square-wave AC welding power supply.

This application provides an antenna structure and communication device to address the technical problem that the second or fourth harmonics of interference signals with resonant frequencies lower than the communication frequency band easily fall into the communication frequency band, affecting communication. In this antenna structure, a feed point is provided on the radiator; one end of a capacitor structure is coupled to the feed point, and the other end of the capacitor structure is configured to receive radio frequency signals; one end of an inductor structure is coupled to the radiator, and the other end of the inductor structure is configured to be grounded. The capacitor and inductor structures are used to suppress resonances with resonant frequencies lower than the communication frequency band of the antenna structure, thereby preventing the harmonics of interference resonances from falling into the communication frequency band, i.e., preventing signals from falling into the passband, and thus improving communication performance.

This invention relates to a soft-switching converter, comprising a main circuit and a soft-switching auxiliary circuit. The soft-switching auxiliary circuit includes power devices Q3 and Q4, diodes D1, D2, and D3, inductor L2, and coupling inductor L3. Compared with existing technologies, this invention adds a soft-switching auxiliary circuit connected to the main circuit. Through auxiliary circuit control, the semiconductor devices in the main circuit and the soft-switching auxiliary circuit can achieve soft-switching effects across the entire load range and the entire input voltage range without stress spikes, thereby improving the operating frequency, power density, and efficiency of the switching converter, reducing size, EMI, and cost.

A coupling resonator circuit includes a capacitive portion that includes a capacitive plate having a geometrical shape; and an inductive portion that is coupled to the capacitive portion. The inductive portion includes a transmission line having a first end and a second end, and the transmission line tapers from the first end in the direction of the second end such that a width of the transmission line at the first end is greater than a width of the transmission line at the second end. The coupling resonator circuit is configured to resonate at a desired coupling frequency; and dimensions of the capacitive portion and the inductive portion determines a separation in frequency between the desired coupling frequency and one or more resonant frequencies that are nearest to the desired coupling frequency.

A two-antenna dual-mode power transmitter comprises a first binary phase-shift amplifier and a first power amplifier electrically connected thereto, a second binary phase-shift amplifier and a second power amplifier electrically connected thereto. The first power amplifier is connected to a third coupling inductor, the second power amplifier is connected to a sixth coupling inductor, the third coupling inductor is connected to an output of a first switch, and the sixth coupling inductor is connected to an output of a second switch; another output of the third coupling inductor, another output of the sixth coupling inductor, and an output of the third switch are connected; operations of the binary phase shifter amplifier comprises a zero operation mode, a PI-phase operation mode, the operation of the two-antenna dual-mode power transmitter comprises a first single antenna TDM mode, a second single antenna TDM mode, a first two-antenna BPM mode, and a second two-antenna BPM mode.

This invention provides a multi-octave broadband six-digit digitally controlled phase shifter with an all-through balun structure, belonging to the field of digitally controlled phase shifter technology. By combining phase shifting units with different timings and employing a switch-based linear phase shifting structure combined with a balun, this invention effectively achieves high-precision broadband phase shifting control from small steps to large angles. The use of negatively coupled inductors expands the operating bandwidth, optimizes phase linearity and stability, and the interleaved arrangement of large and small phase shifting units further reduces signal reflection and improves standing wave performance. By utilizing two sets of symmetrical single-pole double-throw switches to achieve fast and stable switching between the ground state and the phase-shifted state, the balance of the signal path and impedance matching are ensured, significantly improving the insertion loss and switching speed of the phase shifter. This not only meets the complex requirements of multi-octave broadband operation but also improves the reliability and integration of the system.

A substrate processing system includes a substrate support and a power supply circuit. The substrate support is configured to support a substrate, wherein the substrate support comprises one or more heating elements. The power supply circuit includes: a direct current-to-alternating current converter configured to convert a first direct current voltage to a first alternating current voltage, where the direct current-to-alternating current converter comprises at least one switch; and an isolation circuit comprising one of a coupled inductor or a transformer. The one of the coupled inductor or the transformer is configured to convert the first alternating current voltage to and second alternating current voltage and isolate the one or more heating elements from an earth ground. The power supply circuit is configured to provide an output voltage to the one or more heating elements based on the second alternating current voltage.