News at ROHM Semiconductor

ROHM Semiconductor Offers Downloadable White Paper on Using Advance-Technology H-bridge Driver ICs in DC Brush Motor Designs

Updated white paper describes the benefits of using advanced and highly integrated PWM drivers that combine control and protection features for optimum efficiency

01.29.09

H-Bridge Drivers

SAN DIEGO, Calif. – January 15, 2009 – ROHM Semiconductor now offers the updated white paper, “Controlling DC Brush Motors with H-bridge Driver ICs, 2nd Edition,” as a free download on its website. The white paper provides valuable information for engineers who wish to use low-cost, DC brush motors in motion control. Applications include robotics, portable electronics, sporting equipment, appliances, medical devices, automotive applications, and power tools.

DC brush motors offer a simple, reliable and low-cost solution compared to brushless motors. This up-to-date white paper describes how H-bridge ICs, featuring pulse width modulated output (PWM) and integrated MOSFETs, provide the ideal solution for controlling the speed, direction and braking of DC brush motors. The paper concludes with a summary of the benefits of ROHM’s line of H-bridge driver ICs, including exceptional efficiency, integrated fault protection, small package size, symmetrical pin configurations, as well as pin-compatibility with earlier (linear output) models.

Topics covered in the white paper include:

H-bridge Basics
H-bridge Driver Topology
The Ideal H-bridge Driver
PWM Speed Control Techniques Using ROHM H-bridge Drivers
Selecting the Right H-bridge Driver for the Application

“DC brush motors are the preferred alternative in many motor applications due to their simplicity, reliability and cost-effectiveness,” said Avi Elmaleh, ROHM Semiconductor Field Application Engineering Manager. “ROHM’s comprehensive white paper offers engineers a valuable resource, from a refresher covering H-bridge basics to selecting the best integrated driver IC for their particular motor design.”