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Circuit Capability in MagNet for SOLIDWORKS

Actuator with MagNet for SOLIDWORKS

Electromagnetic devices are widely used across most industrial applications to strategically do some form of work. Efficient use of these devices requires that they be influenced with a desired excitation. Most often the generation of this excitation requires the use of a circuit to control the specific characteristics, timing and overall profile.

Circuit Layout Interface Area in MagNet for SOLIDWORKS.

METHODS and RESULTS

Coil within the Voice Coil Assembly

The excitation in the Coil of the Voice Coil assembly is what generates a torque and determines the acceleration, velocity and position of the Coil.

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Layout Interface Area for Constructing the Circuit

The Layout interface area in MagNet for SOLIDWORKS allows the user to add components and wire them together as desired to construct the circuit.

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Possible Components for the Circuit

A wide variety of components can be added to the circuit. Voltage and Current sources can be used to provide energy to the circuit. Resistors, capacitors, inductors, switches and diodes can be used to control the profile and timing. Voltage and current probes can be used to review the response of the circuit.

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Possible Source Definitions

There six different possibilities for defining either a current or voltage source. These are DC, AC, Sinusoidal, Exponential, Pulse and Piece-wise Linear.

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Controlling the Excitation on the Voice Coil with a Sinusoidal Current

This is a layout for connecting a sinusoidal current source to the Coil.

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Properties for Defining the Sinusoidal Source

There are various properties available for configuring the character of the sinusoidal excitation. An amplitude of 1 ampere is set for a 100 Hz sinusoidal current.

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Current Passing through the Coil

The resulting current which passes through the Coil as a function of time is shown here.

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Voltage across the Coil

The resulting voltage across the Coil as a function of time is shown here.

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Flux Linked to the Coil

The resulting flux linked to the Coil as a function of time is shown here.

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Torque Acting on the Coil

The torque acting on the Coil as a function of time is shown here.

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Controlling the Excitation on the Voice Coil with a DC current and a Control Switch

This is a layout for connecting a DC current source to the Coil through a timing controlled switching sequence.

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Properties of the DC Source

There are various properties available for configuring the character of the DC excitation. An amplitude of 2 amperes is set for the current.

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Timing Defined in the Switch Properties

The properties for the switch allows one to set a series of timed operations for either closing or opening the switch. The switch starts off as open, closes after 2.5 msec and then opens again after 17.5 msec has elapsed.

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Current Passing through the Coil

The resulting current which passes through the Coil as a function of time is shown here.

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Voltage across the Coil

The resulting voltage across the Coil as a function of time is shown here.

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Flux Linked to the Coil

The resulting flux linked to the Coil as a function of time is shown here.

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Torque Acting on the Coil

The torque acting on the Coil as a function of time is shown here.

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Controlling the Excitation on the Voice Coil with a voltage limited sinusoidal current source.

This is a layout for connecting a sinusoidal current source to the Coil with the addition of a voltage limiting feature for controlling what excitation is seen by the Coil.

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Properties for Defining the Sinusoidal Source

There are various properties available for configuring the character of the sinusoidal excitation. An amplitude of 5 ampere is set for a 100 Hz sinusoidal current.

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DC Voltage Sources for Biasing the Diodes

There are various properties available for configuring the character of the DC voltage excitation. An amplitude of 3 volts is set for the voltages to bias the diodes.

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Diode Properties

There are various properties available for configuring the nature of the diode. These include the characteristic voltage drop and the diode's "open" impedance.

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Current Passing through the Coil

The resulting current which passes through the Coil as a function of time is shown here.

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Voltage across the Coil

The resulting voltage across the Coil as a function of time is shown here.

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Flux Linked to the Coil

The resulting flux linked to the Coil as a function of time is shown here.

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Torque Acting on the Coil

The torque acting on the Coil as a function of time is shown here.

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