High-performance pick-and-hold solenoid driver module

High-performance pick-and-hold solenoid driver module

July 29, 2021

OES (Optimal-Engineering Systems Inc.)


Van Nuys, California  –  A compact, PWM, high performance Pick-and-Hold Solenoid Driver Module, the PH-ET series from Optimal Engineering Systems, Inc. (OES) is designed to energize one or two solenoids independently. It avoids overheating of the energized solenoid coils even for indefinite hold times.  By design, after applying an initial higher voltage to the solenoid coil to provide the necessary force (torque) to seat the plunger, the voltage then drops down to a level sufficient to maintain the plunger in the seated position without overheating. Using the onboard potentiometers, the pick voltage timing and hold voltage are easily adjusted for a specific application without having to compromise performance.

This Eco-Friendly, module is based on a micro-controller that can easily be reprogrammed for your application.  Available off-the-shelf, this Pulse-Width Modulated "Pick and Hold" module operates on a single supply voltage from +9 VDC to +50 VDC.  The "Holding" current is up to 4 Amps RMS with a peak or "Pick" current of 15 Amps for high force and/or acceleration.  The snubber or fly-back diodes are incorporated to suppress voltage spikes. The module accepts a TTL command voltage of 0 to 3 VDC, or 4 to 20 mAmp signals.

This compact 76.2mm x 76.2mm x 21.6mm (3.00 in. x 3.00 in. x .85 in.) highly efficient, “Pick and Hold" module is easy to integrate into new and existing applications and an optional DIN Rail Mount Bracket is also available.  The Pick-and-Hold Solenoid Driver Module is ideal for driving: Solenoids, valves, relays, actuators, DC motors including voice coil and moving magnet linear motors, hydraulics, electromagnets, and LEDs.

Other available modules include:  Selectable low/high side driver and serially controlled solenoid driver.