Dynamic braking resistors

  • 11-Jul-2008 11:48 EDT
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Providing design engineers with a robust, ultra low-profile braking resistor, IRC offers a family of thick-film planar power resistors on insulated stainless-steel substrates. Designated the WDBR series, the dynamic braking resistor enables motion-control systems designers to replace wirewound devices with a low-inductance, flameproof, intrinsically safe planar device rated for ultra-high temperatures. Typical applications for the braking resistors include dynamic braking of motors in motion-control systems; battery pre-charge and capacitor discharge circuits in hybrid vehicles; and voltage bus clamp and trickle-charge circuits in industrial electronics. Maximum pulse power for the dynamic braking resistors is 1.5, 2, 3.5, 5, and 7 kW.
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