Motor Control IC provides digital current loop.
Press Release Summary:
Model MC73110, suited for brushless DC motors, performs PI current loop compensation, trajectory generation, commutation, velocity loop, encoder input, and Hall sensor input. Featuring 3 modes of operation, compact, intelligent, single-axis IC utilizes on-chip ADC to digitize analog current feedback. Unit also features software-programmable velocity and current loops, 6-step and sinusoidal commutation, and 6-signal symmetric PWM waveform generation.Original Press Release:
Motor Control IC Provides Digital Current Loop
Lincoln, MA- Performance Motion Devices, Inc. (PMC) announces the release of the MC73110 Motor Control IC with digital current loop for brushless DC motors. This compact, intelligent, single-axis IC utilizes an on-chip A/D converter to digitize the analog current feedback, and provides multiple current sensing methods to maximize motor performance. Using this product, only a MOSFET or IGBT triple half-bridge is needed to implement a full-featured controller. The MC73110 performs all other functions including PI current loop compensation, trajectory generation, commutation, velocity loop, encoder input, and Hall sensor input.
The MC73110 operates in one of three modes: internal velocity profile mode, velocity mode with an external command signal, and torque mode with an external command signal. It provides software-programmable velocity and current loops, six-step and sinusoidal commutation, analog or digital command input, profile generation and six-signal symmetric PWM (pulse width modulated) waveform generation. It can be operated as a stand-alone intelligent motion IC, or via serial commands as a programmable axis controller.
The MC73110 is ideal for building high performance, low-cost brushless motor amplifiers. It can be used in applications such as medical automation, centrifuges, tape drives, machine tools, scientific instrumentation, semiconductor equipment, HVAC, pumps and compressors, and general automation.
Chuck Lewin, CEO and President of PMD comments; "Digital current loop addresses one of the biggest historical problems with analog amplifiers - that is, having to make manual adjustments. By putting torque control into a digital device, manual adjustments are a thing of the past."
The MC73110 is packaged in a compact 64-pin PQFP (plastic quad flat pack), and operates from 3.3 V. Prices start at $18.00 in OEM quantities.
CONTACT: James H. Bailey
781.674.9860, Ext. 223
jbailey@pmdcorp.com
