Proportional Solenoids
Proportional solenoids and proportional solenoid valves are often used in applications requiring variable and precise control. By converting an electric control signal into proportional mechanical force, proportional solenoids are able to achieve varying position and/or force. During operation, spring force balances solenoid force to position the armature in proportion to the input signal. As current is applied, the force of the armature against the force of the spring holds the solenoid in a set position until the applied current is increased or decreased.
There are two design elements that are critical for a proportional solenoid or proportional valve. These are low hysteresis and a relatively flat force verses stroke curve at a given applied current. Both of these greatly affect the predictability, repeatability and the command response of the solenoid.
Utilizing our distinctive solenoid magnetic structure, TLX provides customers with a design that offers a competitive edge in their products. This technology allows custom solenoids engineered and manufactured by TLX to have equivalent forces while fitting into smaller packages and offers the following features:
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Patented solenoid features allow for:
- Higher forces in the same package size or,
- Reduced solenoid size up to 25% vs. competitive designs for the same force
- Low hysteresis and flat force vs. stroke curve at a given applied current
- Flat curve provides high repeatability of position and force control
- Analog or digital control
- Command step response in less than 60 milliseconds
- Pulse width modulation or current with dither controlled units
- Easily adaptable to two-way valves, three-way valves and pressure and flow controls.
