In the block of power keys are applied high-quality triacs of company ST Microelectronics. Oriented on industrial application, they have high square heat exchange with a radiator and the raised reloading ability. As, thanking for it`s terminal outputs, become possible more reliable connection high-current chains. Here we have applied bladed plugs of Japanese firm JST. Triacs together with the temperature gauge are mounted in the radiator module which unique design allows to take away heat effectively as much as possible.The high-efficiency fan on rolling-contact bearings provide the compulsory ventilation. Such design of our devices allows to be not overheating and to work unlimited time under the maximum loading.

We have developed a block of output filters to reduce noise, which inevitably arise during the phase power regulation. In its basis - the throttles capable to keep inductance within the prescribed limits even at high currents and temperature. The delay of the front of current rise at the same time, not less 200mks. The block of throttles has mechanical ventilation also.

Control card and power supply are mounted in one unit and can be easily removed. If suddenly, for whatever reason there fault, the whole block can be simply replaced by another, without resorting to time-consuming on-site repair. The powerful microcontroller based RISC core AVR from Atmel company operates the work of the dimmer. Being a much more rapid than hitherto applying microcontrollers from C51 series, it can easily handle all the tasks assigned to it. Thanks to a unique algorithm, embodied in his program, he counts intervals to control the power switches, in addition to servicing the keyboard, displaying information on display, poll of temperature sensors and processing DMX signal accurately. All settings, made by the user, are stored in nonvolatile processor memory. So, the application of modern technologies has allowed to minimize the number of circuit elements, and this, of course, decreases the probability of failure of the product in many times.

Switching power supply is built by the flyback scheme with using newest specialized microcircuit of Power Integration company. The design of the block allows to ensure a stable power supply control board and the fans even when the two phases of power outage and when the voltage fluctuations from 180 to 265 volts. The design of the block allows to ensure a stable power supply for the control board and for the fans even with the getting of two phases of power supply or with the voltage fluctuations from 180 V to 265 V. In addition, the short-term (less than 1 sec) getting of the input voltage will not be reflected on the work of the control board.

We use for the protection of the electric circuit the switches of LEGRAND company, well known for their reliability and durability. Introductory and excretory terminals are also produced by LEGRAND. They provide a good contact with the wires and are easy for installation. To improve reliability, all installation of the power part is carried out by wires with degree of safety that excludes them overheating and destruction. The dissipation of blocks inside the device provides good heat removal from the device. Separately, about the box of the device. He`s designed and manufactured according to requirements of mechanical strength, which minimizes the deformation of the product during the transportation, what is important for mobile sets.