Small, Low Cost, Highly Reliable, 'Pick & Hold' PWM Modules
Optimal Engineering Systems, Inc. (OES) offers a very low cost solution for solenoid control electronics. In Pick & Hold applications a higher (Pick) force is required initially and then a switch is made to a lower continuous (Hold) force. This compact (3.00 in. x 3.00 in. x .85 in.) is highly efficient, PH-ET "Pick & Hold" module is easy to integrate into new and existing applications. This module is based on a micro-controller that can easily be reprogrammed for your application. This very reliable module is ideal for driving: Solenoids, valves, relays, actuators, DC motors including voice coil and moving magnet linear motors, hydraulics, electromagnets, and LEDs.
These off-the-Shelf PWM "Pick & Hold" modules operate on a single supply voltage from +9 VDC to +50 VDC. "Holding" current is 4 Amps RMS with a peak or "Pick" current of 15 Amps for high force and/or acceleration. Higher current and voltages are also available.
Used with an SCC-01 Solenoid Controller Card from OES up to 16 "Pick & Hold" PWM Modules can be controlled. In each unit a Snubber Diode is incorporated to suppress voltage spikes. PH-ET "Pick & Hold" modules accepts a TTL command voltage of 0 to 3 VDC, or 4 to 20 mAmps signals. The pick voltage timing and hold voltage are easily adjusted using onboard potentiometers, and these modules are Eco-Friendly, RoHS compliant.