11BRW-300-F60/3 Danaher
Wake Industrial LLC is not an authorized distributor of this product.
The Danaher 11BRW-300-F60/3 is a resolver from the Dynapar Resolvers series and operates with an input voltage of 12.0 Vrms and an input current of 3.1 mA. It features a primary stator winding, an input frequency of 2500 Hz, and a transformation ratio of 0.50.
Internal Product Review
The 11BRW-300-F60/3 is a Danaher Dynapar resolver suited for dependable feedback in industrial motion systems. Operation at 12.0 Vrms input voltage and 2500 Hz input frequency gives the signal path a stable, well-matched electrical profile. Low 30 mV null voltage supports clean signal quality, making the resolver a strong choice for precise single-speed applications.
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Product Description:
The 11BRW-300-F60/3 is a resolver produced by Danaher for the Dynapar Resolvers series. As a brushless rotary transformer, the device converts mechanical shaft position into analog sine-cosine signals for servo drives and feedback loops in industrial automation. The resolver core is housed in a laminated stator-rotor assembly and provides absolute angular information to motion controllers. This feedback enables closed-loop motor regulation in environments where high temperatures or electrical noise prevent the use of optical encoders.
The resolver’s excitation circuit is designed for a 12.0 Vrms reference, so the drive electronics must supply that voltage to the primary winding to obtain the rated signal levels. At this voltage, the primary draws only 3.1 mA, keeping heat generation low and permitting the use of simple single-ended drive stages. The carrier frequency is 2500 Hz, a midrange value that balances magnetic coupling with the filtering requirements of the receiving electronics. The secondary delivers a sine output at half the amplitude of the reference because the transformation ratio is 0.50. This ratio simplifies the ratiometric demodulation of the sine and cosine channels.
Residual offset at electrical zero is limited to 30 mV, indicating minimal error when the rotor aligns with the stator’s quadrature axes. Electrical quadrature accuracy is supported by a phase shift of -2°, which reduces interpolation error between the sine and cosine channels after demodulation. The resolver is built as a single-speed unit that produces one electrical cycle per mechanical revolution. This configuration suits servo loops that do not require gear-ratio compensation. Its primary winding is located on the stator, leaving the rotor passive and improving reliability during high-speed operation.
