Open Source Model Library

The models listed below are viewable and available within the SystemVision™ tool.

Digital

Model	Description
and2.vhd	Two input AND gate
and3.vhd	Three input AND gate
and4.vhd	Four input AND gate
and8.vhd	Eight input AND gate
buf.vhd	Simple Buffer with delay time
clock.vhd	Digital clock with 50% duty cycle
clock_en.vhd	Digital clock with 50% duty cycle and enable
clock_freq.vhd	Digital clock with 50% duty cycle (specify frequency)
clock_jitter.vhd	Digital Clock Source with built-in edge jitter (Uniform Distribution)
clock_pulse.vhd	Digital Pulse Source with Period and width generics
d_bus_cmp.vhd	Digital bus comparator
data_logic_vector.vhd	Digital Data Source. Data sequence is specified as a std_logic_vector
dig_prbs.vhd	Digital Pseudo-Random Bit Stream (PRBS) Data.
dig_prbs_jitter.vhd	Digital Pseudo-Random Bit Stream (PRBS) Data with built-in edge
dig_pulse.vhd	Digital Pulse Source with Period and Duty Cycle generics
dlatch.vhd	D Latch with reset
inverter.vhd	Simple Inverter with delay time
jkff.vhd	JK flip flop with preset and clear
levelset.vhd	Set constant digital output level
mux4.vhd	4 to 1 multiplexer with enable
nand2.vhd	Two input NAND gate
nand3.vhd	Three input NAND gate
nand4.vhd	Four input NAND gate
nand8.vhd	Eight input NAND gate
nor2.vhd	Two input NOR gate
nor3.vhd	Three input NOR gate
nor4.vhd	Four input NOR gate
nor8.vhd	Eight input NOR gate
or2.vhd	Two input OR gate
or3.vhd	Three input OR gate
or4.vhd	Four input OR gate
or8.vhd	Eight input OR gate
p2s_shift_reg.vhd	parallel to Serial Shift Register with Asynchronous Load and Clear
pattern_det.vhd	Pattern Detection Device
s2p_shift_reg.vhd	Serial to Parallel Shift Register with Asynchronous Load and Clear
triand2.vhd	Tri-stated two input AND gate
tribuf.vhd	Tri-stated Buffer with delay time
triinv.vhd	Tri-stated inverter with delay time
trinand2.vhd	Tri-stated two input NAND gate
trinor2.vhd	Tri-stated two input NOR gate
trior2.vhd	Tri-stated two input OR gate
xnor2.vhd	Two input XNOR gate
xnor3.vhd	Three input XNOR gate
xnor4.vhd	Four input XNOR gate
xnor8.vhd	Eight input XNOR gate
xor2.vhd	Two input XOR gate
xor3.vhd	Three input XOR gate
xor4.vhd	Four input XOR gate
xor8.vhd	Eight input XOR gate

Control Systems

Model	Description
e_bpf.vhd	Bandpass Filter with electrical connections.
e_brf.vhd	Band Reject (Notch) Filter with electrical connections.
e_deriv.vhd	Ideal derivative block with electrical connections.
e_derivlag.vhd	Derivative block with pole. Electrical connections.
e_difference.vhd	Differencing (in1 - in2) junction with electrical connections.
e_gain.vhd	Gain Block with electrical connections.
e_integ.vhd	Integrator Block with electrical connections.
e_leadlag.vhd	Lead-Lag filter with electrical connections.
e_limit.vhd	Limiter with electrical connections. Limits have a small slope
e_lpf_1st.vhd	1st order Lowpass Filter with electrical connections.
e_lpf_2nd.vhd	2nd order Lowpass Filter with electrical connections.
e_mult.vhd	Two input Multiplier with electrical connections
e_nthorderpoly.vhd	Nth-degree S-domain polynomial transfer function, with
e_pwl_tf.vhd	Piece-wise Linear transfer function block with electrical
e_sqrt.vhd	Square root function with electrical connections
e_sum.vhd	Summing junction (in1 + in2) with electrical connections.
q_bpf.vhd	Bandpass Filter with real quantity connections.
q_brf.vhd	Band Reject (Notch) Filter with real quantity connections.
q_deriv.vhd	Derivative block with real quantity connections.
q_derivlag.vhd	Derivative block with Lag, real quantity connections.
q_difference.vhd	Differencing (in1 - in2) junction with real quantity
q_from_ang_vel.vhd	Ideal converter model, from an angular velocity (rad/sec) input
q_from_angle.vhd	Ideal converter model, from an rotation angle (rad) input
q_from_current.vhd	Ideal converter model, from an electrical current input
q_from_displacement.vhd	Ideal converter model, from an translational displacement (meters)
q_from_flux.vhd	Ideal converter model, from a magnetic flux (Wb) input
q_from_force.vhd	Ideal converter model, from an translational force (N) input
q_from_heat_flow.vhd	Ideal converter model, from thermal heat-flow (Watts) input
q_from_mmf.vhd	Ideal converter model, from a magnetic mmf (A*t) input
q_from_pressure.vhd	Ideal converter model, from a fluidic pressure input (Pa)
q_from_temperature.vhd	Ideal converter model, from a temperature (K) input
q_from_torque_r.vhd	Ideal converter model, from a rotational torque (N*m) input
q_from_torque_rv.vhd	Ideal converter model, from a torque (N*m) input to the quantity
q_from_vflow_rate.vhd	Ideal converter model, from fluidic flow rate (m^3/sec) input
q_from_voltage.vhd	Ideal converter model, from an electrical voltage input
q_gain.vhd	Gain Block with real quantity connections.
q_integ.vhd	Integrator Block with real quantity connections.
q_leadlag.vhd	Lead-Lag filter with real quantity connections.
q_limit.vhd	Limiter with real quantity connections. Limits have a small
q_lpf_1st.vhd	1st order Lowpass Filter with real quantity connections.
q_lpf_2nd.vhd	2nd order Lowpass Filter with real quantity connections.
q_mult.vhd	Two input Multiplier with real quantity connections.
q_nthorderpoly.vhd	Nth-degree S-domain polynomial transfer function
q_pwl_tf.vhd	Piece-wise Linear function block with real quantity
q_sqrt.vhd	Square root function with real quantity connections.
q_sum.vhd	Summing junction (in1 + in2) with real quantity connections.
q_to_ang_vel.vhd	Ideal converter model, from the quantity input to a rotational
q_to_angle.vhd	Ideal converter model, from the quantity input to a rotation
q_to_current.vhd	Ideal converter model, from the quantity input to an electrical
q_to_displacement.vhd	Ideal converter model, from the quantity input to a translational
q_to_flux.vhd	Ideal converter model, from the quantity input to a magnetic
q_to_force.vhd	Ideal converter model, from the quantity input to a translational
q_to_heat_flow.vhd	Ideal converter model, from the quantity input to a thermal
q_to_mmf.vhd	Ideal converter model, from the quantity input to a magnetic
q_to_pressure.vhd	Ideal converter model, from the quantity input to a fluidic
q_to_temperature.vhd	Ideal converter model, from the quantity input to a temperature (K)
q_to_torque_r.vhd	Ideal converter model, from the quantity input to a rotational
q_to_torque_rv.vhd	Ideal converter model, from the quantity input to a torque (N*m)
q_to_vflow_rate.vhd	Ideal converter model, from the quantity input to a fluidic
q_to_voltage.vhd	Ideal converter model, from the quantity input to an electrical
qsrc_constant.vhd	Constant Source with real quantity connections.
qsrc_pulse.vhd	Pulse Source with real quantity connections.
qsrc_pwl.vhd	Piecewise linear real quantity source
qsrc_sine.vhd	Sinusoidal voltage source with real quantity connections.

Electrical

Model	Description
bandpassfilter.vhd	Bandpass Filter electrical connections. Both the input and output
bandrejectfilter.vhd	Bandpass Filter electrical connections. Both the input and output
capacitor.vhd	Electrical Capacitor
differenceamp.vhd	Simple two input difference amplifier with electrical connections.
diode.vhd	Basic Diode model
gainamp.vhd	Simple gain amplifier with electrical connections. Both
highpassfilter.vhd	Second order Highpass Filter with electrical connections.
i_constant.vhd	Electrical Constant Current Source
i_pulse.vhd	Electrical Current Pulse Source
i_sine.vhd	Electrical sinusoidal current source
inductor.vhd	Electrical Inductor
integratingamp.vhd	Simple integrating amplifier with electrical connections.
lagcomp.vhd	Single Pole (Lag) Compensator with electrical connections.
leadlagcomp.vhd	Lead-Lag Compensator (zero/pole pair) with electrical connections.
limitingamp.vhd	Limiting amplifier with electrical connections.
lowpassfilter.vhd	Second-order Lowpass Filter with electrical connections.
measfreq.vhd	Measure Frequency of an electrical input signal (voltage)
multiplier.vhd	Simple two input multiplier with electrical connections.
opamp_3p.vhd	3-pin OpAmp model with behavioral architecture
resistor.vhd	Electrical Resistor
summingamp.vhd	Simple two input summer with electrical connections.
sw_1p2t.vhd	Single-pole double-throw electrical switch
sw_1p3t.vhd	Single-pole triple-throw electrical switch
sw_2p2t.vhd	Double-pole double-throw electrical switch
sw_ctrl.vhd	Switch controller with integer signal output
sw_matrix.vhd	Electrical matrix switch
txline.vhd	Ideal, Lossless Electrical Transmission Line
v_constant.vhd	Constant Voltage Source
v_pulse.vhd	Voltage Pulse Source
v_pwl.vhd	Piecewise linear voltage source
v_sine.vhd	Electrical sinusoidal voltage source
v_sweptsine.vhd	Swept Sinusoidal Voltage source
vcoanalog.vhd	Analog Voltage Controlled Oscillator
voltageclamp.vhd	Simple Voltage Clamp Model
zener_diode.vhd	Zener Diode

Hydraulic

Model	Description
cal_tube.vhd	Calibrated tube for measuring fluid volume over time
chamber_extend.vhd	Extending Fluid Chamber (hydraulic/mechanical transducer)
chamber_retract.vhd	Retracting Fluid Chamber (hydraulic/mechanical transducer)
check_valve.vhd	Direction-sensitive flow restriction - check valve
constant_volume.vhd	Constant Volume Fluid Chamber (hydraulic compliance)
flowconstant.vhd	Ideal Hydraulic Constant Flow Source
flowpulse.vhd	Ideal Hydraulic Pulse Flow Source
gas_bubble.vhd	Compressible volume of gas under isothermal conditions
hydraulic_line_segment.vhd	Single-segment lumped model of a hydraulic line
orifice.vhd	Flow restriction - constant area
pressureconstant.vhd	Ideal Hydraulic Constant Pressure Source
pressurepulse.vhd	Ideal Hydraulic Pulse Pressure Source
pump.vhd	Ideal, positive displacement pump model
valve.vhd	Flow restriction - variable area

Magnetic

Model	Description
airgap.vhd	Air Gap Model: Used as building block for magnetic circuits
core.vhd	Magnetic Core model
core_phy.vhd	Linear magnetic core model with physical (geometry) specifications
core_pwl.vhd	Non-linear magnetic core model, with piece-wise linear B vs. H
fluxpulse.vhd	Magnetic Flux Pulse Source
mmfpulse.vhd	Magneto-Motive Force (MMF) Pulse Source
transformer.vhd	Ideal linear transformer (1 primary and 1 secondary winding)
winding.vhd	Winding model for electro-magnetic components

Mixed Signals

Model	Description
a2d_bit.vhd	Ideal one bit A/D converter
a2d_nbit.vhd	Variable-bit A/D Converter
comparator_d.vhd	Voltage comparator with digital output
d2a_bit.vhd	Ideal one bit D/A converter
d2a_nbit.vhd	Variable-bit D/A converter
switch_dig.vhd	Simple Digital-Controlled Switch Model
switch_dig_2in.vhd	Two input analog switch
switch_nonlinear.vhd	Non-linear Switch.
switch_pwl_iv.vhd	Piece-Wise Linear (PWL) i vs. v Switch.
vco_digital_out.vhd	Voltage Controlled Oscillator (VCO) with digital output state.

Mixed Technology

Model	Description
dcmotor_r.vhd	DC permanent magnet motor with output of type ROTATIONAL
dcmotor_rv.vhd	Basic DC Motor with output of type ROTATIONAL_VELOCITY
electromagnet.vhd	Electro-Magnet with mechanical connections
fuse.vhd	Dynamic Thermal (self-heating) fuse model
generator_pm_1ph.vhd	Linear model for a Single Phase, Permanent Magnet Generator
inductionmotor_3ph.vhd	Linear model for a Symmetrical, Three Phase Induction Motor
lamp.vhd	Incandescent Lamp Model
lamp_dual.vhd	Dual Filament Incandescent Lamp Model
r_dynthermal.vhd	Electrical Resistance Model with Dynamic Thermal
steppermotor_2ppm.vhd	Simple 2-Phase, Permanent Magnet Stepper Motor with Rotational
wire.vhd	Simple wire model with current direction monitor

Rotational

Model	Description
angvelpulse.vhd	Angular Velocity Pulse Source
convert_r_rv.vhd	Ideal converter between rotational and rotational_velocity natures
cv_transmission.vhd	Ideal CVT (Continuously Variable Transmission) model
differential.vhd	Ideal Differential Gear Train model
engine.vhd	Ideal engine model
fan.vhd	Fan Load (ROTATIONAL_VELOCITY domain)
gear.vhd	Gear Model (ROTATIONAL_VELOCITY domain)
gear_r.vhd	Gear Model (ROTATIONAL domain)
gear_rv.vhd	Gear Model (ROTATIONAL_VELOCITY domain)
inertia_r.vhd	Moment of Inertia (ROTATIONAL domain)
inertia_rv.vhd	Moment of Inertia (ROTATIONAL_VELOCITY domain)
leadscrew.vhd	Ideal leadscrew model, converts between rotational (angle)
spring_r.vhd	Mechanical Spring (ROTATIONAL domain)
stop_r.vhd	Mechanical Hard Stop (ROTATIONAL domain)
torquepulse_rv.vhd	Torque Pulse Source (ROTATIONAL_VELOCITY domain)
wheel.vhd	Ideal wheel model for interaction with vehicle powertrain

Thermal

Model	Description
cthermal.vhd	Thermal Capacitance
heatpulse.vhd	Heat Flow Pulse Source
rthermal.vhd	Thermal Resistance Model
tempconstant.vhd	Constant Temperature Source
temppulse.vhd	Temperature Pulse Source

Translational

Model	Description
damper_t.vhd	Mechanical Damper (TRANSLATIONAL domain)
displacementpulse.vhd	Mechanical Displacement Pulse Source
forcepulse_t.vhd	Mechanical Force Pulse Source (TRANSLATIONAL domain)
mass_t.vhd	Mechanical Mass (TRANSLATIONAL domain)
spacer_t.vhd	Mechanical Spacer (TRANSLATIONAL domain)
spring_t.vhd	Mechanical Spring (TRANSLATIONAL domain)
stop_t.vhd	Mechanical Hard Stop (TRANSLATIONAL domain)