Chokes for AC-DC inverters

Typical parameters:

• Rated RMS current with grid frequency: depending on the application, typically up to 1,000 A in our products.
• Initial inductance
• Current characteristics
• Operating frequency
• Rated voltage: ≤ 5,000 V
• Insulation class: B, F, or H
• Protection rating: IP00-IP67

Design based on any shape of the core ensuring optimum performance: block cores including those with elliptical cross-section, laminated, toroidal, in various shapes e.g. EE, ETD, PQ, etc. Special designs are also available that integrate the choke design into a uniform block using magnetic coupling.

Depending on the solution, the components intended for installation in the system can be of an open design or can be sealed by encasing in resin or by pressure-vacuum impregnation. Chokes can be installed separately or integrated in one housing with other components of the system to form an integral filter block, e.g. LCL.