The series resonance under UHV power can help many power workers conduct various power tests more conveniently.

Capacitors have many differences in both type and function. And resonant capacitors are also one of them, which play an important role in circuits that cannot be ignored.

Resonant capacitors are actually used in circuits containing capacitors and inductors to achieve instantaneous boosting. If a capacitor and an inductor are connected in parallel, it may occur during a very short period of time that the voltage of the capacitor gradually increases while the current gradually decreases, while the current of the inductor gradually increases and the voltage of the inductor gradually decreases. In short, this is a capacitor that can gradually control the voltage of an inductor according to changes in voltage and current.

Characteristics of resonant capacitors

After optimizing the internal structure and improving the material of the capacitor through engineers, the lead out terminal can withstand greater torque and minimize ESR and ESL, and has the characteristics of being able to withstand high currents, low self inductance, high stability, and self-healing. Its strong stability is the biggest feature, after all, it is a capacitor that can control the inductance voltage according to demand, so its stability is relatively high. Not only that, it can also effectively withstand high currents without any problems due to an increase in current.

Resonant capacitance effect

The role of resonant capacitors is multifaceted, therefore they are widely used in various environments and occasions. However, its main application is coupling in high current and high pulse lines UPS、SMPSs、 The functions and application scope of induction heating power supply, inverter power supply, high-frequency heating machine, welding machine power supply, DC isolation, filtering, etc. are constantly expanding.

Parameters of resonant capacitor

Its parameters are the key reference for selection, so they should not be underestimated. Firstly, the rated voltage is 600V DC——1000V.DC， Next is the rated capacity of 15uF to 300uF. Its temperature control should be between -40 ° C and 85 ° C, and it can withstand a relatively large temperature difference. The deviation of capacity is within ± 5% and ± 10%, and its longest expected lifespan is 100000 hours at Ur and 70 ℃. Understanding these relevant parameters and their functions is helpful for selecting the appropriate capacitor correctly.