The appearance design of LLC resonant inductor varies depending on the actual application scenario and circuit design requirements. In general, the LLC resonant circuit contains a primary coil, a resonant capacitor and a secondary rectifier diode.
The specific key points of the appearance design are as follows:
Primary Coil: The primary coil is usually made of copper wire wound on a ferrite or non-ferrite core to enhance the magnetic field strength. The number of turns and wire diameter of the coil depends on the required operating frequency and the maximum allowable voltage.
Resonant capacitor: The resonant capacitor is the core component of the LLC resonant circuit. The appearance design should take into account the capacitor's capacity, withstand voltage value and usage environment. Usually, the resonant capacitor adopts a metallized polypropylene film capacitor or an electrolytic capacitor with an axial lead structure.
Secondary Rectifier Diode: The secondary rectifier diode is used to rectify the resonant current into a DC output. The appearance design should take into account parameters such as the junction area, reverse voltage and on-state resistance of the diode. Typically, LLC resonant circuits use fast recovery diodes or Schottky diodes.
Radiator: If the power of the LLC resonant circuit is large, a radiator needs to be used to dissipate the generated heat to prevent the circuit from overheating. The appearance design of the radiator should take into account factors such as the surface area and thermal impedance of the radiator.
Shell: The shell of the LLC resonant circuit should have sufficient mechanical strength and sealing to protect the internal components from the external environment. The design of the enclosure should take into account the installation and use environment of the equipment.
The above are the general points of the appearance design of LLC resonant inductor. The specific design should also be based on the actual application scenario and circuit design requirements.