Manitowoc Lattice Boom Crawler Cranes. Manitowoc Cranes began producing lattice boom crawler cranes at its facility in Manitowoc, Wisconsin, in 1925. Since then, it has led the industry in sales, innovation, performance and support. The heritage of Manitowoc Cranes dates to 1925, when the company built its first lattice boom crawler cranes at its facility in Manitowoc, Wis.
All power supplies have a power input, which receives energy from the energy source, and a power output that delivers energy to the load.
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it. A current source is the dual of a voltage source. The term, constant-current sink, is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types.