QD-3H522A stepper driver (three-phase)

QD-3H522A three-phase stepper driver is a new generation of fully digital stepper driver. It adopts the latest digital technology, uses servo control theory and control algorithms, and does not have the traditional concepts of "beat number" and "subdivision" of drivers. No matter how many steps are set, the motor current is a fine sine current, without the current steps under the subdivision concept. Therefore, stepper motors can achieve excellent performance, excellent smoothness, low-speed silent effect, and extremely low heat generation

Current waveform diagram
Comparison Chart

The right figure shows a comparison of the measured current waveforms of two motors, QD-3H522A three-phase stepper driver and subdivision driver, under the same conditions. The oscilloscope captured the waveform without any processing

Easy to use

For regular use of the drive, there is no need to set the parameters, just use the factory values of these parameters. For some special usage requirements, these parameters can be changed to meet different needs

QD-3H522A Recommended Motor: 86BYG350HA/B/C/D

16 level current selection

(Effective value)

★ Fine sine current control to achieve excellent performance

★ Up to 255 steps can be selected, which can easily adapt to different transmission shaft ratios

★ Single and dual pulse signal modes

★ Motor direction can be set

★ 16 level output current selection

★ 11 level lock current percentage selection (0-100%)

★ 16 level lock time selection (0.1-2 seconds)

The enable end (EN end) can be set to offline mode or locked mode

★ Excellent smoothness, low-speed silent effect, extremely low heat generation

★ The input signal amplitude is 5V, which can be adjusted to 12V or 24V with an external current limiting resistor

★ Automatic breakpoint memory upon shutdown

★ Convenient and flexible setting and reading methods

★ Automatic operation function

★ Comprehensive self testing capability

★ Comprehensive protection mechanism

★ Especially suitable for high-end applications such as robots and 3D printers