The PWM controllers have varied applications in today’s world of electronics. Some of them are mentioned below:
In the field of telecommunications, the widths of the different pulses generally correspond to specific values of the data encoded at one end as well as decoded at the other. There are various lengths of the pulses and the information will be sent after regular intervals.
PWM controller can be used to minimize the total quantity of power that is delivered to a load without any loss that normally incurs when power sources are suppressed by resistive means. This happens because the average power is proportional to duty cycle of the modulation. With an adequately high value of modulation rate, the passive electronic filters can make smooth the pulse train and get back the average analog waveform.
A PWM controller is also used in the efficient voltage regulators. If voltage is switched to the load with an appropriately tuned duty cycle, a desired level of the voltage at the output can be approximated. The switching noise is filtered with the help of a capacitor and an inductor.
You can easily find the right PWM for your needs in the following Ebay listings, but if you need more details on how they actually work, keep on reading.