11BRCX-300-C10/6 Danaher
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The Danaher 11BRCX-300-C10/6 is a resolver from the Dynapar Resolvers series with an excitation frequency of 1000 Hz and an input voltage of 6.0 Vrms. It features a primary rotor winding and operates with a phase shift of 4 degrees and a transformation ratio of 0.45.
Internal Product Review
The 11BRCX-300-C10/6 is a Danaher Dynapar resolver designed for precise position feedback with 1000 Hz excitation frequency and 6.0 Vrms input voltage. Rotor primary winding and a low 15 mV null voltage support clean signal conversion and stable control performance. A 0.45 transformation ratio makes the unit a strong choice for dependable resolver integration.
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Product Description:
The 11BRCX-300-C10/6 is a rotary position transducer produced by Danaher for the Dynapar Resolvers series. Installed on a motor or actuator shaft, it translates mechanical angle into analog sine and cosine signals that motion controllers interpret as absolute position. By using transformer principles rather than discrete digital sampling, the unit offers noise-resistant feedback for industrial automation tasks that demand reliable commutation, speed regulation, and indexing under harsh electrical or thermal conditions.
This model operates with 6.0 Vrms of excitation supplied to the rotor and draws only 15 mA, so the burden on drive power supplies is minimal. The reference carrier is fixed at 1000 Hz, a frequency high enough to avoid interference from mains power or low-frequency process noise while remaining within standard resolver-to-digital converter bandwidths. An electrical speed designation of 1 means the output completes one electrical cycle per mechanical revolution, simplifying scaling in position loops. The transformation ratio is 0.45; therefore, each secondary winding delivers 45% of the applied carrier amplitude. This ratio provides a strong output signal while helping prevent magnetic saturation during continuous operation.
Accuracy is supported by a maximum null voltage of 15 mV, indicating low residual error when the sine and cosine outputs cross zero. A guaranteed phase shift of 4 degrees between the primary excitation and induced secondary voltages must be considered when selecting the tracking resolver-to-digital converter so that demodulation remains centered. Because the unit has a rotor-mounted primary winding, the excitation follows shaft rotation while the sensing coils and their connections remain stationary. This winding arrangement supports stable analog feedback without requiring digital sampling at the transducer. The resulting sine and cosine signals allow the connected motion controller to determine shaft angle continuously throughout each mechanical revolution.
