Replacement of the TCA 785 for a configurable IC to drive single and three phase converters

This paper presents the development of an integrated system to replace the TCA 785, with the possibility to drive up to six independent devices, which will be used in the triggering of controllable devices. The developed circuit is capable to drive single and three phase systems, using only one control device, letting the user select what type of converter will be driven. It is also possible to include a digital control system capable to maintain the current or voltage output constant. Another important aspect is the decrease of the external circuits, allowing the reduction of the interference and undesirable effects caused by connections between circuits. The practical results are show through the text, with the firing of different loads, which demonstrates the possibility of implementing this system.