Electronicdesign 28362 Qm22 Transp
Electronicdesign 28362 Qm22 Transp
Electronicdesign 28362 Qm22 Transp
Electronicdesign 28362 Qm22 Transp
Electronicdesign 28362 Qm22 Transp

Mini Rotary Encoders Built for BLDC Servo Apps

Aug. 19, 2019
This new series of encoders from Quantum Devices features high resolution and built-in brushless dc motor.

Quantum Devices Inc. recently announced a new series of miniature incremental optical encoders. Each of the encoders in the QM22 series has a 22-mm diameter and 12.4-mm thickness.

According to the company, the new incremental encoders, which fit on a NEMA 11 BLDC servomotor, are well-suited for high-volume OEM applications. The QM22 offers high resolution and a variety of electrical commutation options.

The unit is capable of high-precision positioning and comes with line counts up to 2500, says Quantum Devices. Multiple integrated commutation output options, including 4-, 6-, or 8-pole configurations, eliminate the need for additional external commutation peripherals such as hall boards. Immunity from EMI/RFI noise extends the range of suitable applications of the series.

The QM22 miniature encoder consists of a modular, bearingless design that features an easy-to-install lock-and-twist assembly method. With its hermetically sealed LED and patented sensor design, the QM22 encoder is designed to maximize performance and reliability in a miniature package, says the company. The encoder is REACH- and RoHS-compliant.

For OEMs with existing designs that use the now-obsoleted Heidenhain/Renco R22i encoder line, the QM22 is an ideal replacement.

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