PWM controller - innovation in circuitry
The development of electronic devices goes on severaldirections: reduction of dimensions, improvement of the technology of their manufacture, the emergence of innovative design solutions, etc. All these directions are in good agreement with the target use of equipment in various fields. Over time, circuit solutions and new technologies appear that improve the operational characteristics of electronic equipment. One of these devices can rightly be called a PWM controller. This is a small-sized device, which is mainly used in power supplies of various capacities. It realizes the way of voltage conversion and works perfectly both in various household appliances and in production.
In household appliances, the most commonly usedPWM controller TL494, well established in the work. The chip has a built-in frequency generator. This gives it a certain independence from external signals. One- or two-stroke operation mode allows simultaneous reception of direct and inverse signals at the output, which can be used for further conversion. In general, its work is optimized for use in switching power supplies. The number of inputs / outputs meets the requirements of already developed circuits with its use.
With the development of manufacturing technology for thesedevices, we can say that with time, compact high-speed devices that implement the above-described principle of operation will appear. This will allow to develop regulators with good characteristics. Such devices will be able to compete with their analog or digital "rivals" and be used in control circuits of the electric drive.