STEVAL-IHM012V1 STMicroelectronics

STEVAL-IHM012V1 Cordless drill evaluation board information based on Power MOSFET and 8-pins MCU Data Brief Features DC motor speed regulation system (DC chopper). Battery voltage check High current protection Torque limitation Description This STEVAL-IHM012V1 evaluation board employs a traditional design that illustrates how the chopper circuit controls a brush DC motor with a microcontroller as a driver. The purpose of the board is to demonstrate an ST solution for low- end cordless power tools, such as cordless drills STEVAL-IHM012V1 or screwdrivers, but can be an ideal starting point for the design of any application where driving a low voltage DC brush motor is required. Based on a Power MOSFET and microcontroller, the electronic driver is a simple, cost-effective solution for designers. October 2007 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s) Block diagram STEVAL-IHM012V1 1 Block diagram Figure 1. Schematic 2/4 Obsolete Product(s) - Obsolete Product(s)