Resonant inductor

Abstract

The invention discloses a resonant inductor which comprises a series inductor, a parallel inductor and a pin frame. The parallel inductor is inverted at the top of the series inductor, the pin frame is connected at the bottom of the series inductor and connected with a PCB (printed circuit board), adhesives are connected between the series inductor and the parallel inductor, and a plurality of airgaps are formed on a magnetic core of the parallel inductor. As the parallel inductor is inverted at the top of the series inductor, the occupied space of the resonant inductor in the PCB with a compact structure and limited space is small and can be effectively reduced by the structure. As the air gaps are formed on the magnetic core of the parallel inductor, when the resonant inductor passes high current, temperature rise of the parallel inductor in work can be effectively reduced by the air gaps.

Description

technical field [0001] The invention belongs to the field of inductors, in particular to a resonant inductor. Background technique [0002] At present, the common LLC low-power power supply uses an internal integrated leakage inductance as a resonant inductor, but in high-power applications, this method is not suitable for the structure of the transformer, and the design is very difficult. Now the high-power LLC power supply circuit is generally used. There are external independent inductors to meet the needs of circuit operation to generate resonance at different frequencies, but the existing resonant inductors have the disadvantages of large space occupation, large loss and low efficiency, resulting in waste of electric energy. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a resonant inductor with small space occupation, low loss and high efficiency. [0004] In order to solve the above-mentioned technical p...

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Problems solved by technology

[0002] At present, the common LLC low-power power supply uses an internal integrated leakage inductance as a resonant inductor, but in high-power applications, this method is not suitable for the structure of the transformer, and the design is very difficult. Now the high-power LLC power supply circuit is generally used. There are external independent inductors to meet the needs of the circuit to generate resonance at different frequencies, but the existing resonant inductors have the disadvantages of large space occupation, large loss and low efficiency, resulting in waste of electric energy

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