PWM157 - Analog To PWM

Product Diagram

The PWM157 is an analog to pulse width modulator that is factory configured for a wide range of voltage (100mV to 100Vdc) current (1mA to 1Adc) signals.

The output frequency is factory set between 10Hz and 3kHz. As the input signal rises the output pulse width will change from the minimum specified to the maximum on time total period.

The unit can be factory set for reverse action if required. Final calibration is trimmed using the front accessible ZERO and SPAN 15-turn trim adjustments.

The output pulse amplitude is adjustable via the 15-turn reference front potentiometer, which allows exact pulse voltage levels to be set.

Output is indicated by an LED which provides clear indication of module function and PWM percentage.

Power supply variations from 240Vac down to 8Vdc all providing isolation of 2kVrms/2.5kVdc.



Most drawings are supplied in PDF format. Portable Document Format is used to present documents in a manner independent of application software, hardware, and operating systems.


Lead Time for a Niche Product


Niche products are usually designed to perform less common functions and may contain made to order assemblies. Niche products have longer delivery times, typically 10 days.

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Order Processing

BSI134 Additional Information Required

APCS makes and customises products according to a customers order. Upon receipt of the customers order the following information is required before manufacture, allocation or deliver until full details are given, these include;

  1. Identity of purchaser. Company name, ABN (Australian companies), street address and accounts email address.
  2. Required delivery address.
  3. Full part number and calibration detail required to manufacture items.
  4. Total on purchase order to include delivery charges. Orders received with missing information will be entered and marked to indicate missing details and returned to the customer for correction or approval.

Compliance with the above ensures that your items are manufactured and delivered according to the required specifications.

Standard delivery times commence after the order has been approved for processing.