The ballast microcircuit IRS2573DS for the ...

The ballast microcircuit IRS2573DS for the industrial HID lamps The company International Rectifier has released a highly integrated microcircuit IRS2573DS for gas-discharge lamps of high intensity, low, middle and high power, used for both exterior and interior illumination. The microcircuit IRS2573DS 600В unites a lowering converter and a bridge driver in one frame. The converter circuit functions in the regimen ССМ (continuous-conduction mode) when the lamp is heated and is switched into the regimen critical-conduction mode in the stable working state. The full-bridge driver includes the driver of the upper and lower keys, as well as the MOSFET transistor, feeding the high key. The developers typically faced a number of problems when managing the HID lamp in the narrow range. Using the lamp ballast in one frame, uniting different functions, allows the developers of the lighting systems to quickly bring high-quality production to the market without attracting additional resources. Besides, the integration of several functions within one device allows significantly lowering the total cost of the lighting system. The ballast microcircuit of the HID lamps possesses high flexibility and fine programming capacity, which is important for the developers. The device allows controlling the work of the lamp in different regimens: during burn, heating, normal functioning and fusion. The circuit of the multiplier serves for precise measurement and control of the lamp power. The IRS2573DS is also equipped with a fault detector, fault timer circuit and detects short circuit, the break state, the burning and heating faults as well as the termination of the lamp's service period.