16results about "Transformers/inductances circuits" patented technology

A transformer circuit and a method for decreasing no-load power consumption, the transformer circuit comprising a transformer (30) and an auxiliary winding circuit (10), the transformer (30) comprising an iron core (34), a primary winding (32), a secondary winding (33) and an auxiliary winding (31), the auxiliary winding circuit (10) being connected to the auxiliary winding (31), the auxiliary winding circuit (10) comprising a first power supply circuit (11) and a second power supply circuit (12), and the auxiliary winding (31) comprising a first end (1), a second end (2) and a tap (3) located between the first end (1) and the second end (2). The present method decreases no-load power consumption.

The utility model relates to a transformer with rain shelter function belongs to transformer equipment technical field, including transformer body, shelter cover, rainwater detection module, motor speed reduction mechanism, electric push rod still have control circuit, limiting circuit, the upper end of the shell of transformer body is installed with limiting post respectively, the lower end one side of shelter cover is rotatably installed in the upper end of rear one side limiting post, the lower end other side of shelter cover and the power output shaft of motor speed reduction mechanism are installed together, and motor speed reduction mechanism is installed on rear other side limiting post, the rear side of the mounting bracket of transformer body is installed with support frame, and the upper end front part of electric push rod is installed on the upper end of support frame, and the upper end rear side of support frame installs the baffle, the detection head of rainwater detection module is installed on the insulating plate, rainwater detection module, control circuit, limiting circuit are installed in electric control box and are electrically connected, this new type can guarantee the normal work of transformer body, and has reduced the probability that transformer body appears the fault, so has good application prospect.

This invention provides an on-chip transformer-coupled differential single-pole double-throw switch circuit and an RF integrated circuit, belonging to the field of RF integrated circuits. The differential common port is coupled to the first differential throw ports L_P and L_N, and the second differential throw ports R_P and R_N, respectively. The first switch network includes switch elements D1 and D2, with the anodes of D1 and D2 connected to L_N and L_P, respectively. The cathodes of D1 and D2 are connected together and then connected to the output of a first CMOS inverter. The input of the first CMOS inverter is the input signal SW_L. The second switch network includes switch elements D3 and D4, with the anodes of D3 and D4 connected to R_N and R_P, respectively. The cathodes of D3 and D4 are connected together and then connected to the output of a second CMOS inverter. The input of the second CMOS inverter is the input signal SW_R. This invention solves the problems of limited switching linearity, high insertion loss, insufficient isolation, and large chip area.

High-efficiency resonator coils and coil design methods for large-gap resonant wireless power transfer (WPT) are disclosed. The resonator coils include a coil topology defined by coil parameters, where the turn dimensions per turn (such as trace width and spacing per turn) are configured to reduce or minimize the variance of the z-component of the magnetic field in a region of the charging plane at a specified distance or range from the coil. The Tx resonator coils include capacitor arrangements of tuning capacitors and network matching capacitors to improve coil-to-coil efficiency and end-to-end WPT system performance, for example, for through-wall WPT applications ranging from tens of watts to at least hundreds of watts. The planar resonator coil topology is compatible with manufacturing using low-cost PCB technologies (e.g., with multilayer metals) to reduce losses and improve thermal performance.

The application belongs to the technical field of battery equalization management. A full-path compact equalization topology circuit and control method based on a three-winding transformer are provided, which include a battery pack composed of 2n battery monomers in series, a three-winding transformer, a primary side switch group, a secondary side switch group and a winding control switch. Through the innovative configuration of two same direction primary side windings and one secondary side winding, and the flexible switch control, the full-path equalization capability of the battery pack to charge any monomer, any monomer to discharge the battery pack, energy exchange between any two monomers, and energy exchange between a sub-battery pack and a total battery pack is realized. The adaptive PID control algorithm is introduced, which can dynamically adjust the control parameters according to the real-time voltage difference, realize the accurate control of each switch group, and ensure that the energy is bidirectionally transmitted according to the optimal path and efficiency.

A circuit includes first and second output terminals; a transformer including a primary winding and a secondary winding, the secondary winding includes a tap that divides the secondary winding into first and second secondary windings; a rectifier circuit connected to the secondary winding; and a voltage-doubler circuit connected to the tap such that the voltage-doubler circuit receives a first voltage from both the first and the second secondary windings and a second voltage from only the second secondary winding.

The application provides a transformer, which realizes seamless switching of wide-range high-voltage multi-path input source by network competition of multi-path high-voltage input source, and improves power supply reliability; the transformer adopts a PCB, has high efficiency, high space utilization and simple peripheral circuit, realizes high efficiency and high integration under the premise of ensuring power level, greatly reduces voltage stress of the primary side switch tube by constructing a virtual bus midpoint and adopting a primary side double-winding structure to form two reverse flyback inputs, and makes the whole device have lower cost and more switch tubes for selection; synchronous rectification is used for output, which can reduce on-state loss and improve overall conversion efficiency, so that the whole device is comprehensively improved in cost, energy efficiency, space utilization and reliability.

A method of manufacturing a vertical inductor, the method comprising: forming a substrate, forming a bottom electrode, forming a dielectric layer, forming a magnetic core, forming insulation layer, forming a conductive loop structure by extending vertical interconnects through the insulation layer from a first side of the magnetic core to a second side of the magnetic core, electrically connecting the vertical interconnects to the bottom electrode on the second side of the magnetic core.

The present disclosure relates to a magnetic component (1, 1a, 1b, 1c, 1d, 1c, 1f, 1g, 1h, 1i, 1j, 1k, 9, 10, 10a, 10b,10c, 81, 9a, 9b, 9c) and an integrated magnetic assembly (8, 8a, 8b, 8c). The magnetic component (1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 9, 10, 10a, 10b,10c, 81, 9a, 9b, 9c) includes a magnetic core set (2), a primary winding (3), a first secondary winding (4), a second secondary winding (5) and a tertiary winding (6). The magnetic core set (2) includes a central column (21), a first and a second lateral column (22, 23). The first lateral column (22) includes a first leg (221) and a second leg (222). The second lateral column (23) includes a third leg (231) and a fourth leg (232). A first segment (61) of the tertiary winding (6) is wound on one of the first leg (221) and the second leg (222), and a second segment (62) of the tertiary winding (6) is wound on one of the third leg (231) and the fourth leg (232). The two lateral columns (22, 23) are divided into two legs (221, 222, 231, 232) respectively to achieve partial coupling through the tertiary winding (6). Consequently, the advantages of adjustable and enhanced coupling coefficient, reduced loss, saving footprint and enhanced performance are achieved.

The present disclosure relates to a magnetic component and an integrated magnetic assembly. The magnetic component includes a magnetic core set, a primary winding, a first secondary winding, a second secondary winding and a tertiary winding. The magnetic core set includes a central column, a first and a second lateral column. The first lateral column includes a first leg and a second leg. The second lateral column includes a third leg and a fourth leg. A first segment of the tertiary winding is wound on one of the first leg and the second leg, and a second segment of the tertiary winding is wound on one of the third leg and the fourth leg. The two lateral columns are divided into two legs respectively to achieve partial coupling through the tertiary winding. Consequently, the advantages of adjustable and enhanced coupling coefficient, reduced loss, saving footprint and enhanced performance are achieved.

The application discloses a high anti-deviation characteristic loosely coupled transformer and a control method. The transformer comprises a transmitting coil, a receiving coil, a first inverter circuit, a second inverter circuit, a first compensation network, a second compensation network, a third compensation network and a fourth compensation network. The transmitting coil comprises a first transmitting winding and a second transmitting winding. The first transmitting winding is formed with a first magnetic induction line through hole and a fourth magnetic induction line through hole. The second transmitting winding is formed with a second magnetic induction line through hole and a third magnetic induction line through hole. The first magnetic induction line through hole to the fourth magnetic induction line through hole are arranged in a cross shape. The first transmitting winding is connected to the output end of the first inverter circuit through the first compensation network. The second transmitting winding is connected to the output end of the second inverter circuit through the second compensation network. The receiving coil comprises a first receiving winding and a second receiving winding arranged orthogonally. The first receiving winding is connected to the input end of the third compensation network. The second receiving winding is connected to the input end of the fourth compensation network. The technical scheme of the application has the advantages of simple structure, easy control and strong anti-deviation capability.

The application discloses a spiral inductor assembly and a control method thereof, and relates to the technical field of inductors. The spiral inductor assembly comprises an inductor coil, a fixing assembly and a driving and adjusting assembly. The inductor coil is in a conical spiral structure, has a top end and a bottom end, and is configured as an air-core inductor structure. The fixing assembly is used for fixing the bottom end of the inductor coil. The driving and adjusting assembly is connected with the top end of the inductor coil and is configured to drive the top end of the inductor coil to move along an axial direction so as to change the pitch of the inductor coil. Based on the technical scheme disclosed by the application, the requirement of dynamic change of inductance values of different circuits under various working conditions can be met, the applicability and flexibility of the inductor assembly are greatly improved, the magnetic hysteresis loss and the eddy current loss can be effectively reduced, the occurrence of magnetic saturation can be avoided, and the quality factor can be improved.

The present disclosure relates to a magnetic element and integrated magnetic assembly. The magnetic element includes a magnetic core set, a primary winding, a first secondary winding, a second secondary winding and a tertiary winding. The magnetic core set includes a center leg, a first side leg and a second side leg. The first side leg includes a first pin and a second pin. The second side leg includes a third pin and a fourth pin. A first section of the tertiary winding is wound on one of the first pin and the second pin, and a second section of the tertiary winding is wound on one of the third pin and the fourth pin. The two side legs are divided into two pins respectively, and partial coupling is achieved by the tertiary winding. Therefore, adjustable and enhanced coupling coefficient, reduced loss, saved space and improved performance and other advantages can be achieved.

The application provides a power conversion device, comprising a full-bridge circuit, two magnetic cores, four synchronous rectification circuits, the full-bridge circuit comprising two upper switches, two middle switches, a resonance capacitor, a first high-voltage winding and a second high-voltage winding; each of the synchronous rectification circuits comprises a first lower switch, a second lower switch, a first low-voltage winding and a second low-voltage winding; further comprising an input end and an output end, the input end comprising an input positive end and a GND end, and the output end comprising an output positive end and a GND end. Through the winding mode of the magnetic cores and windings of the two groups of magnetic components, the application realizes a high ratio of input voltage to output voltage of 15:1 of the power conversion device; on the other hand, through the two groups of magnetic components, the four groups of synchronous rectification circuits, the four groups of output terminals and the layout of the corresponding devices, the parasitic resistance on the path of large current is reduced, and the conversion efficiency of the power conversion device is improved.

A method of manufacturing a vertical inductor, the method comprising: forming a substrate, forming a bottom electrode, forming a dielectric layer, forming a magnetic core, forming insulation layer, forming a conductive loop structure by extending vertical interconnects through the insulation layer from a first side of the magnetic core to a second side of the magnetic core, electrically connecting the vertical interconnects to the bottom electrode on the second side of the magnetic core.