Blogs

In a resonant converter or induction-heating supply, a capacitor may carry a large alternating current while the input power appears modest. That is why ESR deserves attention early in the design.

Resonant capacitors are central to the performance of high-power LC networks. In an induction heater, resonant converter, inverter, or switching power stage, they repeatedly exchange energy with an inductor rather than simply smoothing a DC rail. That makes capacitance only one part of the decision.

Resonant Capacitors are essential to efficient power conversion because they exchange energy with inductors at a controlled frequency. Rather than simply smoothing a DC bus or absorbing an occasional transient, they become part of the main power-transfer path.

IGBT Snubber Capacitors are selected to control the voltage overshoot and ringing that appear when an IGBT commutates current in a real, inductive power loop. The task is not simply to choose the largest capacitance or the highest voltage rating.

Ordering a custom part should not begin with capacitance and voltage alone. Resonant Capacitors work as part of an LC network, so their electrical stress, loss, temperature rise, mechanical integration, and validation plan are connected.

Wuxi CRE New Energy Technology Co., Ltd. will showcase its extensive 40-year portfolio of film capacitor solutions at PCIM Asia Shenzhen 2026 (Booth G06). Highlighting core applications in solar photovoltaic inverters, battery energy storage systems (BESS), and power conversion systems (PCS), the article outlines how CRE's reliable DC-Link, AC-filter, and EMC-filter capacitors address critical challenges in modern renewable energy infrastructure.