FlexGen-S PWM

Part No.: MPSC-FlexGen-S-PWM
The FlexGen-S PWM is a PWM generator in which the PWM signal is generated by an open-collector output stage.



Product Information

The FlexGen-S PWM is used for generating PWM signals. The user can set up the frequency and the pulse duty factor via a rotary encoder at the device. In this, the rotary encoders come with a rough and fine switch that enables the alteration of the set-up accuracy between 5 % and 0.1 %. Two pulse duty factors can be pre-configured fixed and accessed directly via a rotary switch.

The generation of the PWM signal is executed via an open collector output. In case a pull-up resistance is necessary for the signal generation, this can be plugged in externally in the shape of a jumper (included in the scope of delivery).



  • Generation of PWM signals with frequencies of 1 Hz to 1 kHz

  • Open collector output for voltages up to 40 V

  • Short-circuit proof and overvoltage protected output

  • Quick recall of two pre-configurable pulse duty factors

  • Robust device with autonomous voltage supply

Fields of Application

  • PWM signals for test benches and test vehicles

  • Revolution specifications at control inputs of vehicle exhausters and pumps


  • Generation of PWM signals with frequencies between 50 Hz to 1 kHz

  • Set-up of pulse duty factor of 0 % to 100 %

  • Quick recall of two pre-configurable pulse duty factors

  • PWM signals via an open collector output with currents of up to 500 mA and voltages of up to 40 V

  • Robust aluminum casing

  • PWM output with current limiting and overvoltage protection

  • Display of frequency and pulse duty factor on an LC display with background lighting

  • Easy connection via banana sockets

  • Rotary encoder with rough and fine switch for adjusting pulse duty factor as well as frequency

  • Externally pluggable pull-up resistance (see image 1)

Scope of Delivery

  • FlexGen-S PWM (device)

  • Jumper pull-up 1kO

  • Manual

Accessories (Optional)

Connector cable and customer-specific adapter cables on demand


There are variations with power PWM output and/or interfaces to the external control (analog, USB, CAN) available in the multifunctional PWM generator product family (FlexGen-M PWM).

Technical Details

Voltage Supply +6 V(DC) to +28 V(DC)
Supply Current < 50 mA
Operating Temperature -20°C to 70°C
Storage Temperature 30°C to 80°C
Dimensions (L x W x H) 138 x 90 x 40 mm
Casing/Protection Class Aluminium / IP41
Output Type Power-MOSFET
Maximum Current PWM Signal 500 mA
PWM Signal Lift 1-40 V (6-28 V with jumper)
Forward Resistance (RDS ON) max. 500 mΩ
Frequency Range PWM 50 Hz to 1 kHz
Pulse Duty Factor PWM 0 % to 100 % *
Resolution Pulse Duty Factor 0,1 %
LCD Display 2 x 16 characters with background lighting*
*Pulse width tolerance typ. 500 ns (1 μs with 1kΩ pull-up)


Name Function
PWM Open collector output PWM
KL30 Voltage supply/vehicle battery plus
KL31 Mass/vehicle battery minus