Product: 			New SPICE Library for Mechatronics
Available June 16, 1997
Platform:			Windows 3.1x, 95, NT, Macintosh, and Power Macintosh
Requirements:	ICAP, ICAP/4, or IsSpice4 is required
Contact:			Charles Hymowitz - Vice President Intusoft (310) 833-0710, Fax (310) 833-9658	charles@intusoft.com, www.intusoft.com


Intusoft Releases New Mechatronic SPICE Model Library

	Intusoft has introduced a new SPICE model library for Mechatronic devices including models for both mechanical and hydraulic elements. Key models such as motors, spark gaps, pumps and valves, which are necessary for the successful simulation of automotive and other physical systems, are represented in the library. The new Mechtronics library enables designers to simulate mixed technology circuits which contain both non-electrical and electrical devices. The new library will be previewed at the 97' Design Automation Conference.

	This is the first SPICE 3 based library which contains a comprehensive set of models for mechanical, hydraulic, motor and mixed-technology applications. The new library (Table 1) represents a major breakthrough for mechanical and system designers who need to simulate both non-electrical and electrical systems. 

	Previous models were based almost exclusively on proprietary HDL models and are almost impossible for the user to view, edit, understand and modify. "Given IsSpice4's advanced behavioral modeling capabilities, coding of the new models in an AHDL is absolutely unnecessary", states Intusoft VP of product development, Charles Hymowitz. Most models in the library are also created with multiple levels of complexity. This allows the engineer to select the appropriate model features of interest and thus control the simulation efficiency. 

	The library will available June 16, 1997. The price in undetermined. The models are compatible with Intusoft's native analog and mixed mode SPICE 3 based simulator, as well as existing ICAP/4 systems for Windows 3.1x, 95, NT, Macintosh and the Power Macintosh. More information about the models, including a complete listing of the devices and their parameters, is available on the Intusoft web site at www.intusoft.com.


Table 1 - Listing of the Model Types in the New Mechatronics Library
u	Stimulus sources (step, impulse, ramp, 1-phase AC, 3-phase AC) 
u	Drive controllers (PID controllers, DC/1 phase, 3-phase current/frequency)
u	Electro-mechanical actuators (behavioral motor+controller model, winding, permanent magnet DC-motor, separately excited DC-motor, series excited DC-motor, shunt excited DC-motor, compound excited DC-motor, 3-phase brushless DC-motor, 3-phase AC-induction motor, 1-phase AC-induction motor, 3-phase AC-synchronous motor with field winding on rotor or stator, 3-phase AC-synchronous permanent magnet motor (brushless AC), 2-phase permanent magnet stepper motor, 3-phase permanent magnet stepper motor, 2-phase variable reluctance stepper motor, 3-phase variable reluctance stepper motor, 3-phase SR (switched reluctance) motor, solenoid)
u	Electro-hydraulic actuator models (fixed/variable displacement pump, hydraulic motor, chamber filled with hydraulic fluid, one-sided/2-sided hydraulic cylinder) 
u	Mechanical models (gears: pin-rack gear with various types of backlash, gears with fixed carrier, spur gears with rotating carrier, 2D-gear model, Planar Bus models, flat belt segment with inertia, joint friction, slippage, and pretension, V-belt drive, synchronous (toothed) belt drive, chain drive, lead screw, ball screw, friction drive, brake model, clutch model, freewheel, cam model, cardan joint transmission (universal Hooke joint), lever with fixed pivot, pulleys)
u	Sensors (tachogenerator, encoder, accelerometer, vibrometer, position controlled switch, potentiometer, 3-phase synchro, 2-phase resolver)
u	Non-linear mathematical blocks (transport delay, limiters, dead band, Schmitt trigger relay, saturation model)
u	Translational mechanics models (general load, mass, gravity, damper, non-linear spring, friction (stiction + Coulomb + drag), flexible coupling, backlash, contacts)
u	Rotational and mixed rotational/translations mechanics models (rotational load, bobbin w/variable inertia, shaft, transformation from rotational to linear (including inertia, friction and slippage),  unbalanced mass, eccentric rotating mass, centrifugal forces)
u	Planar mechanical models (planar mass, spring and damper, rotational joints/drives) 
u	Hydraulic models (pipes, tanks, leaks, loss due to bend, orifice flow, gas loaded accumulator, pressure relief valves, hydraulic power drives)
