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Mosaic has introduced the PWM Driver Wildcard, a plug-in I/O module that makes it easy to interface high-current peripherals to any instrumentation or automation project

The device also offers high-precision current sensing with a programmable gain.

A pulse width modulated (PWM) signal is a periodic digital output waveform with a controlled period, duty cycle and polarity.

These waveforms are used to drive stepper motors, servo-motors, AC and DC relays, LEDs and many other actuators.

The PWM Driver Wildcard, intended for use with Mosaic’s new PDQ product line, converts the PDQ Board’s logic-level PWM outputs to the high-current drive required of heaters, solenoids, control valves, motors and relays.

The PWM Driver Wildcard features eight channels of up to 5A current each with field voltages up to 26V; fast PWM switching and four channels of current sensing with user-configurable gain.

A logic high (5VDC) placed on one of the inputs turns on its corresponding output.

Two different field supplies, each serving four channels, can be used for controlling devices that require different voltages.

Each of the PWM Driver’s channels provides a MOSFET switch to turn ON/OFF current into the controlled device.

The PWM Driver Wildcard includes pre-coded software, designed to make it easier to configure the period, duty cycle, active state, alignment, resolution, and clock source of each PWM output.

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