Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200

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The switching power device shown in Figure 1 is called an H-Bridge. It takes a DC supply voltage and provides 4-quadrant control to a load connected between two pairs of power switching transistors. Because the switches allow current to flow bidirectionally, the voltage across the load and the direction of current through the load can be of either polarity. H-Bridges are often used to control the speed, position or torque of DC and stepper motors. Traditionally implemented with either discrete or monolithic bipolar transistors, fully integrated solutions are becoming increasingly popular in printer, plotter, robotics and process control applications that require 0.5A to 3.0A and operate from 12V to 55V. The LMD18200 was designed to operate within this range and was optimized for such applications.

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Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200

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تاریخ انتشار 2002