Digital dc drives from sri krishna electro mechanical drives are manufactured by control techniques india ltd. These products have several standard features such as mentor ii digital dc drives - single and four quadrant [25 to 1850 a]; lynx 4q2, puma and cheetah series analog drives - single and four quadrant. These hi-tech, sophisticated, user-friendly, multi-facet, utility equipments with all unique features are offered from the world renowned "control techniques world wide - uk and emerson group company.