Snap-in Variable Frequency & Pulse Width Generator module with back lit LCD Display.
Simple source of Square Wave test pulses.
Programmable & Lockable Upper & Lower Duty Cycle adjustment range Limits.
Auto save prevents setting loss due to power fail.
Power: 3.5 ~ 30VDC
Frequency ranges: 2
Normal mode: 1Hz ~ 150KHz;
Accurate mode: 1Hz ~ 15KHz;
Frequency Accuracy: 2%;
Duty Cycle accuracy:
1% in Normal mode
0.1% in Accurate mode
Range: 0.00% -100%;
Output Voltage: ~ Same as Input Voltage
Max Output Current: 5-30ma; Input Voltage Dependant
Ambient temperature: -20 ~ +70 "C"
Cutout: 74mm X 40mm W: 80mm H: 43mm D: 27mm (Body) WT .1
WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example:
ABS plastic contains styrene
PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP)
electrolytic capacitors can contain Ethylene glycol
Brass can contain Lead
flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA)
Aluminum alloys can contain Chromium
To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching!
Works fine and good price, but WEIRD operating procedures. Output is clean, stable and very close to the settings. If your power supplied is eg. 12V, the output will swing from -6 to + 6 when referencing to the PWM outputs. 6 volts, then -3V to + 3v.
Watch his video. Much better than the written instructions.
Makes a Decent Piece of Inexpensive Test Equipment
Its not obvious from the video or the literature, but the PWM output of this generator is positive logic. I added a PCB with MIC4420Y driver to protect the module from wiring mishaps and a logic level MOSFET with flywheel diode to drive heavy loads with negative logic. With a little finagling it fits great in the MPJA 17802BX enclosure and makes a pretty nice looking piece of test equipment.