Stepping Motor Driver, 2-Phase Unipolar

Anti-resonance circuit Parsec enables high speed operation

1. General Description

The PARSEC-Driver printed board was developed for evaluating and rapid prototyping in stepping motor applications!
The onboard CMOS-ASIC PARSEC (1) is designed for motion control. It eliminates the mid-frequency resonance in permanent-magnet stepper motors such as Hybrid, Tin-can, Variable Reluctance (VR) and Disc- Motors. The clock input frequency range, instability working range (adjustable with filter) and sequencer-outputs (2-Phases or 3-Phases) are independently determined by selection a small number of components! 4 Power MOSFETs opendrain outputs which sink up to 2A per phase of load current. The PARSEC-Driver printed board and our application hints help you for a good solution in motionsystem developments!

 (1): PArametric ReSonancE-free Controller (IC from SCS GmbH and Magnetron Labs)

2. Features

  • Input Clock for frequency generators with open collector output
  • Input Fullstep or Halfstep (FS/HS)
  • Input Direction (CW/CCW)
  • Input Enable all outputs
  • Possibility to drive external full bridge 3-phase or 2-phase Driver
  • Monoflop-Output for Bi-Level Driver
  • Eliminate parametric resonances
  • Wide frequency range from 1Hz up to 100kHz
  • Print-board size: 40 x 55mm, height: 16mm (with components)
  • Onboard Power-MOSFETs drive 2A/Ph Unipolar Stepping Motors
  • Clock output phase modulated

Save money and time...
Boost your Stepping Motor Applications!

Parsec - Print








3. Specifications


Absolute Maximum Ratings

Symbol

Parameter

Rate

Units

VSupply

Supply Voltage

28,00

[VDC]

IMot

Motor Current (continuous) 1)

2,25

[A]

RSupplymin

Minimal intern Supply Resistance 2)

3,2

[Ohm]

fClockin max

Maximum Clockinput Frequency

200

[kHz]

TJ

Operating Temperature Range 1)

0 to 60

[°C]

TSTG

Storage Temperature Range

-10 to 130

[°C]

1) Notes: 50°C/W with 1 In2 of copper mounting pad each on the power MOSFET
2) Maximum pulse current: <11A, dependent from the motor coil resistance and inductance!

4. Performance

Mechanical output power from a Tin-Can Stepping Motor.
Step angle: 15 degree, BiLevel Driver in Fullstep mode. 30% switch on duration (play duration max 10min).
  • with PARSEC: _______
  • without PARSEC: - - - - - -

mechanical power

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Document Information:
Copyright © 2002 by Magnetron Labs Merz, CH-3280 Murten, All Rights Reserved.

Originally Composed: Thursday, August 05, 1999
Last updated: Friday, March 15, 2002